BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Ab-initio study of the correlation between electric field gradient s and electric polarization in ferroelectric oxides DTSTART;VALUE=DATE-TIME:20111207T134000Z DTEND;VALUE=DATE-TIME:20111207T140000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-37@cern.ch DESCRIPTION:Speakers: Mr. GONÇALVES\, João Nuno (Universidade de Aveiro) \nThe hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) at the corresponding site provides information related to the near electronic charge distribution. Nuclear te chniques such as Perturbed Angular Correlation (PAC) have been used to mea sure EFGs under temperature or electric field variations\, for example\, r elating them to ferroelectric properties. Macroscopically\, the main prope rty in ferroelectrics is the polarization\, which also depends on the char ge density\, but in many cases presents difficulties to be studied due to extrinsic effects. In previous hyperfine studies of ferroelectrics or mult iferroics\, particularly done at ISOLDE using PAC\, a relation between the EFG and the polarization was observed and discussed in a few materials\, but without a firm theoretical foundation.\n We present first-principles d ensity functional theory calculations for ferroelectric materials such as BaTiO3 \, KNbO3 \, PbTiO3\, and other oxides with perovskite structures\, with a simultaneous calculation and analysis of the two properties as a f unction of the ferroelectric distortion. The EFG tensor and its properties \, including orientation\, and correlation between components are examined . A relationship with the electric polarization is found\, giving quantita tive support to previous works.\n The calculations allow a systematic stud y of this relationship in several compounds\, which may help to relate mor e generally the conventional measurements of polarization and the local EF G experiments\, and the added detailed information will potentially increa se our understanding of the different mechanisms behind ferroelectrics or multiferroics.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=3 7&sessionId=9&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=37&sessionId=9& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:The TRIUMF-ISAC Radioactive Ion Beam ( RIB) Facility: Recent Highl ights and Future Plans DTSTART;VALUE=DATE-TIME:20111207T143000Z DTEND;VALUE=DATE-TIME:20111207T150000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-43@cern.ch DESCRIPTION:Speakers: Dr. BALL\, Gordon (TRIUMF)\nThe availability of a wi de variety of intense beams of exotic nuclei from the next generation of r adioactive ion beam facilities such as the Isotope Separator and Accelerat or (ISAC) facility at TRIUMF provides an unprecedented opportunity to addr ess key questions of current interest in nuclear astrophysics\, nuclear st ructure physics\, fundamental symmetries and molecular and material scienc e. The short-lived isotopes are produced at ISAC by the ISOL (on-line iso tope separation) method using a beam of up to 100uA of 500 MeV protons fro m the TRIUMF H- cyclotron to bombard thick production targets. The target s can be coupled to a wide variety of ion sources including: surface\, las er (TRILIS) and plasma (FEBIAD) sources\, to produce the world’s most in tense RIB beams for certain isotopes such as 11Li. A license was obtaine d in November 2009 to run with uranium targets at \n\nhttp://indico.cern.c h/contributionDisplay.py?contribId=43&sessionId=10&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=43&sessionId=10 &confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:The Laser Ion Source and Trap (LIST): Improving the Selectivity of the Resonance Ionization Laser Ion Source DTSTART;VALUE=DATE-TIME:20111207T110000Z DTEND;VALUE=DATE-TIME:20111207T112000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-34@cern.ch DESCRIPTION:Speakers: FINK\, Daniel (Ruprecht-Karls-Universität\, Heidelb erg\, Germany\; CERN\, Geneva\, Switzerland)\nHighest ionization efficienc y combined with effective isotope selectivity is of utmost importance for most on-line experiments on exotic\, short-lived radionuclides\, in partic ular for those with the lowest production rates. At ISOLDE\, the ionizatio n technique that most closely meets these requirements is the Resonance Io nization Laser Ion Source (RILIS)\, where the atoms of a chosen element ar e step-wise and thus\, inherently selectively ionized by simultaneous irra diation with different laser beams\, wavelength-tuned to strong optical re sonances. Unfortunately\, rare isotope beams produced with RILIS at ISOLDE are still often significantly contaminated with surface ionized isobars\, which hinder or even prevent foreseen experiments. \nIn order to fully su ppress these isobaric contaminants\, the Laser Ion Source and Trap (LIST) has been developed at the University of Mainz and at CERN. An electrostati c electrode positioned at the exit of the isotope transfer line of the tar get unit stops surface ions from reaching the ion extraction region. Only neutral atoms may diffuse into the two-dimensional radio frequency quadrup ole trap located immediately ahead. Resonant laser ionization of the atom of interest takes place within the LIST device\, wherein the resulting ion s are transversely confined and guided towards the subsequent extraction a nd acceleration field. \nVarious preparatory off-line measurements were pe rformed to study the behavior of the LIST with several elements. Character istics such as transmission\, selectivity\, and ionization efficiency were determined in full detail under realistic operating conditions. \nIn May 2011\, the LIST was operated successfully at ISOLDE producing ion beams of stable and radioactive Mg isotopes. This is the first time that such a de vice has been tested in on-line (proton on target) condition at a radioact ive ion beam facility. The primary goal was to study the long term behavio r of the LIST in a radioactive environment and to study the LIST character istics under realistic conditions.\nA summary of the LIST technique and th e results of the off-line and on-line studies will be presented\, as well as the latest developments towards further improvements of the LIST perfor mance.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=34&sessio nId=8&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=34&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Newly Available Beams and Systematic Release Studies at ISOLDE DTSTART;VALUE=DATE-TIME:20111207T101000Z DTEND;VALUE=DATE-TIME:20111207T102500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-24@cern.ch DESCRIPTION:Speakers: GOTTBERG\, Alexander (Universite de Bordeaux I (FR)) \nISOLDE is known for the production of very exotic radioactive ion beams far from stability. During the past online period a number of isotopes cou ld be added to that list and are now available for experiments. \nSystemat ic investigations of isotope yields and other release properties promote t he understanding of the complex processes of isotope production and extrac tion and help evaluating future physics proposals making use of exotic ion beams.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=24&sessi onId=8&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=24&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear structure studies of the neutron-rich Rubidium isotopes us ing Coulomb excitation DTSTART;VALUE=DATE-TIME:20111205T134500Z DTEND;VALUE=DATE-TIME:20111205T140500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-25@cern.ch DESCRIPTION:Speakers: SOTTY\, Christophe (CSNSM Centre de Spectrometrie Nu cle aire et de Spectrometrie de)\nC. Sotty1\, G. Georgiev1\, G. Simpson2\, J.M. Daugas3 \, A. Blazhev4\, N. Bree5\, R. Chevrier3\, S. Das Gupsta6\, J. Diriken5\, L.\nGaffney7\, K. Geibel4\, K. Hadynska-Klek8\, T. Kroell9\ , B. Lannoo5\, P. Morel3\, P. Napiorkowski8\, J. Pakarinen10\, P. Reiter4\ , M.\nScheck9\, M. Seidlitz4\, B. Siebeck4\, A. Stuchbery12\, N. Warr5\, F . Wenander10\, M. Zielinska8 and REX-ISOLDE and Miniball\ncolaborations\n1 . CSNSM\, CNRS/IN2P3\; Université Paris-Sud 11\, UMR8609\, F-91405 ORSAY- Campus\, France\n2. LPSC\, Université Joseph Fourier Grenoble 1\, CNRS/IN 2P3\, INPG\, F-38026 Grenoble Cedex\, France\n3. CEA\, DAM\, DIF\, F-91297 Arpajon cedex\, France\n4. Institute for Nuclear Physics\, Cologne\, Germ any\n5. IKS\, KU Leuven\, Belgium\n6. Dipartimento di Fisica\, Universita di Camerino\, I-62032 Camerino\, Italy\n7. Olive Lodge Laboratory\, Univer sity of Liverpool\, Liverpool\, UK\n8. Heavy Ion Laboratory\, Warsaw Unive rsity\, Warsaw\, Poland\n9. Technische Universität Darmstadt\, Darmstadt\ , Germany\n10. ISOLDE\, CERN\, Geneva\, Switzerland\n11. Departement of Nu clear Physics\, ANU\, Canberra\, Australia\n\nThe neutron-rich A=100 mass region has recently attracted a high interest of the nuclear structure stu dies. In this area of the nuclear chart one can observe the most sudden tr ansition from spherical to well deformed shapes. This occurs by adding jus t few neutrons for the Zr(Z=40) and Sr(Z=38) isotopes across N=60. Some wo rks claim as well that this phase transition allows the presence of a shap e coexistence at N∼60.\nThe onset of deformation at N = 60 is clearly ob served between the Zr and Rb isotopes from the two-neutron separation ener gies from mass measurements. However\, a recent study of the Kr isotopes a t ISOLTRAP [1] showed no deformation observed for the ground states of Kr ’s. This has been confirmed as well in a Coulomb excitation measurement [2]. The interplay between down-sloping and up-sloping neutron orbitals [ 3\, 4\, 3] is evoked as one of the main reasons for the sudden change at N = 60. The question stays which are the active proton orbitals and what is their contribution to the structure of the region. The Coulomb excitation study which we report here aimed at identifying these orbitals in the neu tron-rich Rb’s - the last isotopic chain showing the onset of deformatio n. An additional interest towards 93\,95\,97\,99 Rb comes from astrophysic al aspect. According to some of the scenarios the r-process path might go through those exact nuclei.\nThe nuclei of interest were produced at ISOLD E\, CERN using an UCx target. 93\,95\,97\,99Rb were post-accelerated up to 2.83 MeV/u using REX-ISOLDE and Coulomb excited on a secondary target (60 Ni\,120Sn\,196Pt) positioned in the center of the Miniball array used for particle and gamma-ray detection.\nA number of excited states in 93Rb were previously known from beta-decay and isomeric studies [5]. The results fr om the present measurement allowed for a firm spin and parity assignments of those states and for determining their transition probabilities. The o bserved gamma-ray spectrum for 95 Rb strongly resembles the one of 93 Rb. This should allow obtaining very similar information on the structure of t hose assumed spherical nuclei. On contrary the Coulomb excitation spectrum of 97 Rb shows completely different characteristics with a higher number low-energy transition being populated. The gamma-gamma coincidences allow ed building a level scheme that indicate the presence of rotational-band l ike structure in this deformed nucleus. The present status of the analysis will be discussed and the obtained level schemes and transition probabili ties would be compared with theoretical calculations.\n\nReferences\n[1] S . Naimi\, et al. Critical-point boundary for the nuclear quantum phase tra nsition near A=100 from mass mesurements of 96\,97 Kr\, Phys. Rev. Lett. 1 05\, 032502\, 2010.\n[2] M. Albers\, et al. Coulomb Excitation on the neut ron rich isotopes 94\,96Kr\, Poster\, ARIS Conference\, 2011.\n[3] W. Urba n\, J.A. Pinston\, Eur. Phys. J. A16\, 11 2003.\n[4] W. Urban\, Eur. Phys. J. A22\, 241 2004.\n[5] G. S. Simpson\, et al. Near-yrast\, medium spin\, excited states of 91Rb\, 93Rb\, 95Rb\, Phys. Rev. C 82\, 024302\, 2010.\n \nhttp://indico.cern.ch/contributionDisplay.py?contribId=25&sessionId=0&co nfId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=25&sessionId=0& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Neutron Wall: recent results and future plans DTSTART;VALUE=DATE-TIME:20111207T082000Z DTEND;VALUE=DATE-TIME:20111207T084000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-26@cern.ch DESCRIPTION:Speakers: NYBERG\, Johan (Uppsala University)\nThe Neutron Wal l is a compact 1π neutron detector array consisting of 50 liquid scintill ator detectors. The array has been used together with the EUROBALL gamma-r ay spectrometer at INFN-LNL in Italy and at IReS in France. Presently it i s located at GANIL where it is combined with EXOGAM in experiments with bo th stable and radioactive ion beams. Recent results obtained with the set up at GANIL will be presented. Future plans of the Neutron Wall and its su ccessor NEDA will be briefly described.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=26&sessionId=7&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=26&sessionId=7& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Laser spectroscopy of neutron deficient gallium isotopes. DTSTART;VALUE=DATE-TIME:20111205T140500Z DTEND;VALUE=DATE-TIME:20111205T142500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-27@cern.ch DESCRIPTION:Speakers: PROCTER\, Thomas (University of Manchester School of Physics)\nLaser spectroscopy has been performed on isotopes of gallium at ISOLDE using the gas-filled linear Paul trap ISCOOL. Ground state nuclea r spin values\, magnetic dipole moments\, electric quadrupole moments and mean-square charge radii have been extracted for isotope masses in the ran ge A=63 to 74. The experiment was performed to determine the potential de velopment of a proton skin in the neutron deficient Ga isotopes. The grou nd state spin of 63Ga was measured and the change in charge radius from 71 Ga was extracted. This talk will present the results from the neutron def icient Ga isotopes and present charge radii measurements across the galliu m isotope chain from A=63 to 82.\n\nhttp://indico.cern.ch/contributionDisp lay.py?contribId=27&sessionId=0&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=27&sessionId=0& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:A photoluminescence study of Cd\, In and Sn in ZnO using radioisot opes DTSTART;VALUE=DATE-TIME:20111207T130000Z DTEND;VALUE=DATE-TIME:20111207T132000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-20@cern.ch DESCRIPTION:Speakers: Prof. HENRY\, Martin (School of Physical Sciences\, Dublin City University\, Glasnevin\, Dublin 9\, Ireland)\nWe report the re sults of photoluminescence studies of zinc oxide implanted with radioactiv e 117Ag which decays through Cd and In on to stable Sn. Our results show t hat two of the so-called I-lines\, I9 and I2\, both decay away in accordan ce with the decay of radioactive 117In. This confirms an earlier result th at I9 is due to excitons bound to In donors and shows conclusively for the first time that the I2 line is also due to In. We do not observe any phot oluminescence due to either Cd or Sn both opf which exist at sizeable conc entrations during or after the 117Ag decay sequence. It appears that\, in contrast to Hg\, isoelectronic Cd does not bind an exciton in ZnO\, and th at Sn\, in contrast to another group IV impurity Ge\, does not produce a s harp bound exciton line well below the band gap.\n\nhttp://indico.cern.ch/ contributionDisplay.py?contribId=20&sessionId=9&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=20&sessionId=9& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Octupole collectivity in 220Rn and 224Ra DTSTART;VALUE=DATE-TIME:20111206T161000Z DTEND;VALUE=DATE-TIME:20111206T163000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-21@cern.ch DESCRIPTION:Speakers: Mr. GAFFNEY\, Liam (University of Liverpool (GB))\nT he notion that nuclei can assume reflection asymmetric shapes\, arising fr om the octupole degree of freedom\, has been supported by a considerable a mount of theoretical and experimental evidence for some time. The stronges t octupole correlations occur near the proton numbers Z=34\, 56 and 88 and the neutron numbers N=34\, 56\, 88 and 134 where\, for the heaviest nucle i\, an octupole deformation can occur in the ground state.\n\nExperiments to quantify the deformation in the region where octupole correlations are strongest\, have been too difficult to perform until very recently. The on ly observable that provides unambiguous and direct evidence for enhanced o ctupole collectivity is the E3 matrix element or more specifically\, in th e ground state\, the B(E3\; 0+ → 3-). Coulomb excitation is the preferre d methodology for directly measuring these observables and so far\, the B( E3) strength has only been measured in 226Ra\, with its comparatively long half life of 1600y. However\, with the recent advances in ISOL technology \, specifically the post-acceleration of high-intensity radioactive beams\ , it is now possible to study these nuclei at REX-ISOLDE. Beams of 220Rn ( July 2011) and 224Ra (August 2010 and August 2011) have been successfully delivered to MINIBALL at 2.83A.MeV and Coulomb excited on Sn\, Cd and Ni t argets. The data obtained should now be sufficient to measure the octupole collectivity on these nuclei for the first time.\n\nhttp://indico.cern.ch /contributionDisplay.py?contribId=21&sessionId=5&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=21&sessionId=5& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Laser Spectroscopy with the Leuven gas cell-based Laser Ion Source DTSTART;VALUE=DATE-TIME:20111207T084000Z DTEND;VALUE=DATE-TIME:20111207T090000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-22@cern.ch DESCRIPTION:Speakers: Dr. FERRER-GARCIA\, Rafael (IKS-KULeuven)\nThe Leuve n Isotope Separator Online (LISOL) facility\, located at the Cyclotron Res earch Center (CRC)\, Louvain-\nla-Neuve\, is a successful producer of puri fied rare ion beams using resonant laser ionization of reaction products\n thermalized in a buffer-gas cell. After almost two decades of operation hi gh purity radioactive ion beams of more\nthan 15 different elements have b een obtained exploiting various production mechanism as light- and heavy-f usion\nevaporation reactions\, proton-induced fission\, and the spontaneou s fission of 252Cf. Production and thermalization of\nradioactive species in a cell filled with ultra-pure buffer gas is used in combination with re sonant laser radiation for\nselective ionization of the isotopes of intere st by the Leuven gas cell-based laser ion source. These ions are extracted \nfrom the cell in a supersonic jet and transported by a radio frequency i on guide up to the mass separator\, where they\nare segregated from non-is obaric contamination. Ion beams of high purity can then be sent to the det ector station for\nthe study of their characteristic decay radiation.\nIn addition to the routinely performed nuclear-decay-spectroscopy studies the recent implementation in the LISOL\nsetup of a new concept gas cell [1] h as allowed in-source laser spectroscopy studies of neutron-deficient 57 􀀀59Cu\n[2] and 97􀀀102Ag [3] isotopes. These measurements have become feasible owing to the enhanced sensitivity of the\napparatus\, which has allowed spectroscopic studies on exotic species with count rates as low as 6 ions/s for 57Cu\n(T1=2 =200 ms) or 1 ion/s for 97Ag\, both semimagic nu clei. Online experiments are currently being carried out to\npursue simila r results on actinium isotopes.\nIn spite of the good results obtained by in gas-cell laser spectroscopy the inherent pressure broadening makes this \ntechnique to be inapplicable to those elements with reduced hyperfine pa rameters and/or high sensitivity to atomic\ncollisions\, as observed in pr actice for instance\, in the tin isotopes around A= 100. For the successfu l study of the\natomic properties of these species\, and in general\, to a chieve high resolution laser spectroscopy\, a technique like\nin-jet laser spectroscopy would be the technique of choice. The proof of principle of in-jet laser spectroscopy has\nbeen demonstrated at LISOL [4] and the full benefits of it recently evaluated with a high-repetition laser system [5] \,\nmaking it the best candidate for future studies with the Leuven laser ion source. In this technique laser ionization\ntakes place in the superso nic jet expanding out of the gas cell. Consequently\, the isolated atomic beams are obtained\nby supersonic adiabatic expansion in vacuum\, with a s ignificant reduction of the Doppler broadening. In addition\, the\ngas den sity in the ionization region is too low to contribute to the pressure bro adening making the laser line width the\nmain limitation for the final ach ievable resolution.\nTwo approaches to reduce the laser bandwidth of the L ISOL laser system are currently under investigation. On\nthe one hand\, si ngle longitudinal mode selection by a thick (14 mm air spaced) etalon plac ed inside the oscillator of\nthe dye laser\, and on the other hand\, ampli fication of single mode cw diode laser light in a pulse dye amplifier.\nIn my presentation I will report on the results obtained in the last online runs performed on the production of\nAc beams and in the different tests c arried out to accomplish in-jet laser spectroscopy at LISOL in view of a f ull\nimplementation of this technique in the future low energy branch faci lity S3\, at SPIRAL2.\n\n\n[1] Yu. Kudryavtsev et al.\, Nucl. Instr. and M eth. B 267 (2009) 2908\n[2] T.E. Cocolios et al.\, Phys. Rev. Lett. 103 (2 009) 102501\n[3] I. Darby et al.\, In preparation\n[4] T. Sonoda et al.\, Nucl. Instr. and Meth. B 267 (2009) 2918\n[5] R. Ferrer\, V. T. Sonnensche in et al.\, In preparation\n\nhttp://indico.cern.ch/contributionDisplay.py ?contribId=22&sessionId=7&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=22&sessionId=7& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Three-nucleon forces and neutron-rich nuclei DTSTART;VALUE=DATE-TIME:20111206T130000Z DTEND;VALUE=DATE-TIME:20111206T133000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-49@cern.ch DESCRIPTION:Speakers: SCHWENK\, Achim (EMMI/TU Darmstadt)\nThis talk will discuss three-nucleon forces and their impact on the structure of neutron- rich nuclei\, with a focus on the neutron-rich calcium and oxygen isotopes .\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=49&sessionId=4 &confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=49&sessionId=4& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Advanced functional oxides DTSTART;VALUE=DATE-TIME:20111206T080000Z DTEND;VALUE=DATE-TIME:20111206T083000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-46@cern.ch DESCRIPTION:Speakers: Prof. MARTIN\, Manfred (Institute of Physical Chemis try\, RWTH Aachen University\; WCU Hybrid Materials Program\, Seoul Natio nal University)\nIonic and electronic transport in functional oxide materi als is of great relevance for applications in the field of energy and data storage\, e.g. solid oxide fuel cells (oxygen ion conductivity)\, oxygen permeation membranes (ambipolar diffusion of oxygen)\, or data storage mat erials (electronic and/or ionic conductivity). In this contribution our re cent work on the influence of defect inter-actions\, grain structure and s pace charge effects\, and electronic structure will be discussed for highl y non-stoichiometric crystalline and amorphous oxides.\nThe general phenom enon of a maximum in the oxygen ion conductivity against dopant fraction w ill be analyzed in terms of defect interactions [1] and using density func tional theory and kinetic Monte Carlo simulations [2]. In nanocrystalline oxide ion conductors\, space charge effects at grain boundaries and surfac es hinder oxygen ion transport [3]\; on the other hand\, the grain boundar ies are conductive for protons\, even at room temperature [4].\nHighly non -stoichiometric and amorphous oxides exhibit fascinating electronic proper ties. Internal disproportionation reactions can induce an insulator-metal transition [5] and may have an immediate impact on applications such as el ectronic devices and permanent data storage. This novel mechanism and its implications will be discussed considering experimental and theoretical re sults for amorphous and highly non-stoichiometric gallium oxide.\n1. M. Ma rtin\, J. Electroceram. 17 (2006) 765.\n2. M. Nakayama\, M. Martin\, Phys. Chem. Chem. Phys. 11 (2009) 3241.\n3. R.A. De Souza et al.\, Phys. Chem. Chem. Phys. 10 (2008) 2067.\n4. S. Kim et al.\, Phys. Chem. Chem. Phys. 11 (2009) 3035.\n5. L. Nagarajan et al.\, Nature Mater. 6 (2008) 391.\n\nhtt p://indico.cern.ch/contributionDisplay.py?contribId=46&sessionId=2&confId= 153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=46&sessionId=2& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Ten Years of Physics with REX-ISOLDE DTSTART;VALUE=DATE-TIME:20111206T100000Z DTEND;VALUE=DATE-TIME:20111206T104000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-47@cern.ch DESCRIPTION:Speakers: Prof. VAN DUPPEN\, Piet (Katholieke Universiteit Leu ven (BE))\nThe "Radioactive EXperiment at ISOLDE" (REX-ISOLDE) was propose d at the end of 1994 to perform a pilot experiment to study neutron-rich i sotopes around N=20 and 28 using Coulomb excitation and transfer reactions . A novel concept to accelerate the existing low-energy\, singly-charged I SOLDE beams and a new high-efficiency gamma-ray array\, called Miniball\, dedicated to low-multiplicity experiments were proposed. In 2001\, first r adioactive beams were accelerated to 2.2 MeV/u and used for physics studie s. Later upgrades allowed to rise the final energy to 3 MeV/u. After ten y ears of operation\, REX-ISOLDE has enlarged its scope far beyond the origi nal plans. Isotopes as light as 8Li and as heavy as 224Ra have been used f or Coulomb excitation\, few-nucleon transfer reaction or fusion evaporatio n studies to name a few.\nIn this contribution we will highlight some of t he physics results and emphasize ISOLDE's unique opportunities. In additio n we will give a brief historical note on how the concept of REX-ISOLDE ca me about.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=47&ses sionId=3&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=47&sessionId=3& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:ISOLTRAP masses for nuclear structure and the r process DTSTART;VALUE=DATE-TIME:20111205T123500Z DTEND;VALUE=DATE-TIME:20111205T130500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-44@cern.ch DESCRIPTION:Speakers: KREIM\, Susanne (Max-Planck-Gesellschaft (DE))\nPrec ision Penning-trap mass measurements carried out in the heavy-mass region are very suitable to investigate mainly topics related to the rapid-neutro n-capture process and nuclear structure. Higher-order nucleon interactions caused by small changes in the binding energy\, which are expected to be small compared to the total mass\, yet very localized. In conjunction with the mass measurements on Xe and Rn\, the masses of the Fr isotopic chain provide accurate mass values over the entire region of the prediction of t he octupole component from the finite-range drop model and help to investi gate the conditions associated with octupole shapes. \n\nThe heavy-mass re gion is also of interest due to the process of fission that can allow the r-process to recycle. Mass measurements are important as input data for mo deling and for adjusting the parameters of different mass models. The r pr ocess can take different paths corresponding to astrophysical conditions t hat respect the waiting-point validity approximation. Now\, the adjacent i sotope chains of Fr produced five new masses which can be used to add beta -decay energies which are important for the evaluation of beta-decay half- lives that greatly influence the r-process. In addition\, the successful d etermination of the mass as well as the half-life of 82Zn with ISOLTRAP is valuable input for the r-process waiting point 80Zn.\n\nhttp://indico.cer n.ch/contributionDisplay.py?contribId=44&sessionId=0&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=44&sessionId=0& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Highlights of the Radiation Protection Group Activities in 2011 in Support of ISOLDE Operation and Projects DTSTART;VALUE=DATE-TIME:20111207T112000Z DTEND;VALUE=DATE-TIME:20111207T114000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-45@cern.ch DESCRIPTION:Speakers: VOLLAIRE\, Joachim (CERN)\nSeveral processes and act ivities carried out in the ISOLDE facility for the production and use of R adioactive Ion Beams present radiological risks. For this reason\, the Rad iation Protection (RP) Group is involved in the daily operation of the fac ility to ensure that appropriate mitigation measures are implemented and t hat the relevant Radiation Protection rules and best practices are followe d. For example on the RIB production side\, such activities span from the production of actinide targets in dedicated laboratories to the preparati on and monitoring of the work performed in the target or separator areas. On the experiment side\, the RP Group is providing support to the ISOLDE u sers in all matters related to Radiation Protection and is also responsibl e for the monitoring of the radiation levels and personnel exposure to ens ure that the applicable legal limits are not exceeded. In addition to the daily operation of the facility\, the RP Group is also involved in the pre paration of the planned intensity and energy upgrade of ISOLDE (in the fra me of the HIE-ISOLDE project)\, as well as in several other projects relat ed to the facility consolidation. In the context of the HIE-ISOLDE project \, a very detailed radiation measurement campaign was conducted in 2010 an d 2011 inside the facility and in its vicinity. The measured radiation lev els were systematically related to the beam parameters and the radiation l evels with the planned primary beam intensity increase could therefore be extrapolated. The measurements were also confronted to calculations perfor med using the Monte-Carlo code FLUKA. Some areas where some shielding rein forcement is needed were identified and the required additional shielding will be assessed using FLUKA. Finally\, another important project for the reliability of the facility and for which the RP constraints must be consi dered is the replacement of the two robot systems used for the target exch ange and which are arriving at the end of their lifetime. For the specific ation of the new system\, the RP Group provided the expected radiological environment in which the system will have to evolve and the consequences o f a system failure in terms of access in order to anticipate recovery scen arios.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=45&sessio nId=8&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=45&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Implementation of titanium:sapphire lasers at ISOLDE RILIS DTSTART;VALUE=DATE-TIME:20111207T104000Z DTEND;VALUE=DATE-TIME:20111207T110000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-28@cern.ch DESCRIPTION:Speakers: ROTHE\, Sebastian (Johannes-Gutenberg-Universitaet Mainz (DE))\nAt ISOLDE RILIS isotopes are resonantly ionized by high pulse repetition rate wavelength-tunable lasers. In recent years the performanc e of RILIS was substantially improved due to upgrade stages of the laser s etup. The dye laser installation has been completely renewed including the replacement of copper vapor pump lasers by solid state Nd:YAG lasers. As part of the RILIS upgrade program\, a complementary fully solid state lase r system based on 10 kHz repetition rate Titanium Sapphire (Ti:Sa) lasers has been built at CERN in collaboration with Mainz University. On account of their advantages in terms of long-term stability and reliability\, Ti:S a lasers are used or planned to be used at the majority of on-line radioac tive ion beam facilities worldwide. In the beginning of 2011 the new Ti:Sa laser system was installed at ISOLDE RILIS alongside the dye laser system . Since then\, the Ti:Sa lasers have been used for a number of on-line exp eriments and their compatibility with the dye lasers and expected performa nce was demonstrated. With the implementation of Ti:Sa lasers the range of elements accessible with RILIS is extended. In particular\, an efficient ionization scheme of astatine has been developed and the ionization potent ial of At atoms has been measured for the first time. The improved flexibi lity offered by the new dual laser system has greatly reduced the switchin g time from one element to another\, making it possible for more physics r uns to be scheduled.\n\nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=28&sessionId=8&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=28&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Mössbauer spectroscopy of 57Co implanted ZnO DTSTART;VALUE=DATE-TIME:20111206T083000Z DTEND;VALUE=DATE-TIME:20111206T085000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-29@cern.ch DESCRIPTION:Speakers: GUNNLAUGSSON\, Haraldur (Aarhus University)\nWe have implanted 57Co (T½=271 d.) into ZnO single crystals\, with the aim of el ucidating some controversies in the Mössbauer literature on 57Fe impuriti es in ZnO. It is shown that some of the data obtained on 57Fe in ZnO has b een misinterpreted. The results show that implantation >1E14/cm2 leads to incorporation of ~20% of the probe atoms into distorted substitutional sit es\, the reminder is found on damage sites of interstitial character. Upon annealing at 773 K (30 min.)\, the substitutional fraction shows less dis tortion from the lattice\, and part of the interstitial fraction has been mobilized to form precipitates. The results show that magnetic precipitate s form easily in transition metal doped ZnO\, affecting interpretations of dilute magnetism.\n\nhttp://indico.cern.ch/contributionDisplay.py?contrib Id=29&sessionId=2&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=29&sessionId=2& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Tilted-foils setup for nuclear spin polarization of post accelerat ed beams DTSTART;VALUE=DATE-TIME:20111207T090000Z DTEND;VALUE=DATE-TIME:20111207T091500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-40@cern.ch DESCRIPTION:Speakers: TORNQVIST\, Hans Toshihide (CERN)\nSpin polarized nu clei are of great interest for many applications\, for example in nuclear structure\, solid state and biological physics. Recently\, a project was s tarted at ISOLDE to evaluate the tilted-foils technique applied to post ac celerated beams at REX-ISOLDE. Thin tilted foils are introduced into the b eam line which induces nuclear spin polarization and the degree of attaine d polarization can be measured with Coulomb excitation or more commonly wi th Beta-NMR. This year\, the first online studies took place with a Beta-N MR setup that has been under construction behind REX-ISOLDE for this evalu ation project. In this contribution\, I will present the setup\, the measu rement and current results from the analysis\, and an outlook for future i mprovements and extensions to the experiment.\n\nhttp://indico.cern.ch/con tributionDisplay.py?contribId=40&sessionId=7&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=40&sessionId=7& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Mg lattice location in group-III nitrides DTSTART;VALUE=DATE-TIME:20111206T085000Z DTEND;VALUE=DATE-TIME:20111206T091000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-41@cern.ch DESCRIPTION:Speakers: PINTO DE ALMEIDA AMORIM\, Ligia (Katholieke Universi teit Leuven (BE))\nThe group-III nitrides (GaN\, InN and AlN) are semicond uctors with a large band gap which can be adjusted by combining the differ ent nitrides into alloys. This provides them with the interesting electric al and optical properties used to create the light emitting diodes LED (fr om UV to red). For this the nitride semiconductors must be doped positivel y (p-type) and negatively (n-type)\, however they are unintentionally n-ty pe doped\, which makes the p-type\ndoping a great challenge.\n\nThe introd uction of small concentrations of dopants in specific lattice positions of a semiconductor may modify the electrical properties of the whole materia l[1\,2\,3]. Depending on whether Mg becomes interstitial or substitutional it can work as a p-type dopant or compensate other dopants. Though other impurities have been predicted to introduce p-type defects in the nitrides \, Mg was the most successful one so far[4].\n\nUsing on-line emission cha nneling [1\,3\,5] the lattice site location of the radioactive probe 27Mg (t1/2=9.5 min) was measured directly\, in GaN\, AlN and InN. In that respe ct\, the use of a Ti target during this year's Mg RILIS run allowed for th e first time to produce clean beams of 27Mg that are free of isobaric stab le 27Al and short-lived 27Na (300 ms) contamination. We found that during room temperature implantation most of the 27Mg atoms occupy substitutional sites of Ga\, Al and In in GaN\, AlN and InN respectively. However\, also a significant fraction of Mg was found in hexagonal sites in AlN and GaN. The remaining Mg was found in random sites of the semiconductor lattice. In order to investigate the temperature dependence of the Mg lattice locat ion and the recovery of the crystal from implantation related damage the i mplantation and measurements were also performed at higher temperatures. W e found the hexagonal interstitital Mg in AlN only for implantation temper atures of 300⁰C and below but not for implantation temperatures of 600 ⁰C and above. In GaN\, interstitial Mg was still observed at 600°C but absent at 800°C. Our results hence gave the first direct evidence of the existence of interstitial Mg in GaN and AlN and also indicated its thermal stability. In the case of InN it was found that it recovers completely fr om implantation damage by annealing at 300°C.\n\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=41&sessionId=2&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=41&sessionId=2& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Coulomb excitation of 140Nd - measuring the B(E2) value of the fir st 2+ state at REX-ISOLDE DTSTART;VALUE=DATE-TIME:20111207T150000Z DTEND;VALUE=DATE-TIME:20111207T152000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-1@cern.ch DESCRIPTION:Speakers: BAUER\, Christopher (Technische Universitaet Darmsta dt (DE))\nA radioactive beam of 140Nd was impinging on a 1.40 mg/cm2 48Ti as well as a 1.55 mg/cm2 64Zn target. Gamma rays were detected by the MINI BALL array and a DSSD was used for particle identification. The transition strength of the first 2+ to the 0+ ground state in unstable\, neutron-def icient 140Nd was measured to be 30(5) W.u. (preliminary). The beam was con taminated by 140Sm\, this allows to determine also a limit for the transit ion strength in that isobar. The result for the B(E2) value in 140Nd devia tes from the empirical rules for quadrupole collectivity [1\,2] and the pr edictions of the contemporary microscopic model (QPM for N=80 predicts 17 W.u. [3] with parameters as in [4]). This unexpected behavior prompts for new\, refined microscopic calculations and potentially can be related to t he shell stabilization of the quadrupole isovector valence shell excitatio ns. The result is also important for preparation of the planned HIE-ISOLDE experiment\, which aims to identify the one-phonon mixed-symmetry 2+ stat e.\n\n[1] L. Grodzins\, Phys. Lett. 2\, 88 (1962)\n[2] R.F. Casten\, Nucl. Phys. A443\, 1 (1985)\n[3] Ch. Stoyanov\, private communication\n[4] N. L o Iudice\, Ch. Stoyanov\, D. Tarpanov\, Phys. Rev. C77 (2008) 044310\n\nht tp://indico.cern.ch/contributionDisplay.py?contribId=1&sessionId=10&confId =153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=1&sessionId=10& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Reaction dynamics studies with 6\,7Li and 9Be nuclei at Pelletron\ , Mumbai\, India DTSTART;VALUE=DATE-TIME:20111206T140000Z DTEND;VALUE=DATE-TIME:20111206T142000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-0@cern.ch DESCRIPTION:Speakers: PARKAR\, Vivek (University of Huelva)\nThe talk will focus on the reaction dynamics studies at Pelletron\, Mumbai\, India with the three weakly bound stable nuclei : 6\,7Li and 9Be. The suppression in fusion cross-sections at above Coulomb barrier energies\, the inclusive a nd exclusive breakup studies and the dipole polarizability studies for 7Li and 9Be will be highlighted.\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=0&sessionId=4&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=0&sessionId=4&c onfId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:High-precision efficiency calibration of a Germanium detector DTSTART;VALUE=DATE-TIME:20111207T080000Z DTEND;VALUE=DATE-TIME:20111207T082000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-3@cern.ch DESCRIPTION:Speakers: Dr. BLANK\, Bertram (CEN Bordeaux-Gradignan)\nFor hi gh-precision gamma-ray measurements (e.g. 0+ - 0+ beta decay)we are about to calibrate a HPGe detector in efficiency. The aim is to obtain an effici ency curve with an uncertainty at the 0.1% level over a range of energy fr om 100 keV to 6 MeV. Standard source measurement\, online source measureme nt taken at ISOLDE and several scans of the detector are combined to adjus t the geometrical parameters of the detector to match it to MC simulations with the GEANT4 and the CYLTRAN codes. The status of this work will be pr esented.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=3&sessi onId=7&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=3&sessionId=7&c onfId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:First High-Resolution Laser Spectroscopy of Cadmium: Recent Result s and Perspectives DTSTART;VALUE=DATE-TIME:20111207T152000Z DTEND;VALUE=DATE-TIME:20111207T154000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-2@cern.ch DESCRIPTION:Speakers: YORDANOV\, Deyan for the COLLAPS collaboration (CERN )\nWe report on the first hyperfine-structure study of cadmium by high-res olution laser spectroscopy. The goal is to determine nuclear spins\, elect romagnetic moments and root mean square (rms) charge radii of ground and i someric states along the chain\, ultimately reaching the neutron 50 and 82 shell closures.\n\nIn the first part of the program we studied the intens e beams of 106-124\,126Cd by fluorescence spectroscopy\, which also covere d the b- isomers in the odd 111-123Cd. The measurements determined the gro und-state spins as being 1/2\, 3/2\, and 5/2 in close relation with the co rresponding single-particle orbitals of the sdgh shell. Evidence is found whether the isomeric configuration is 11/2- in all isotopes\, or it is rep laced by one of the predicted 7/2- or 9/2- collective states. The data is sensitive to the changes in the degree of collectivity between the ground states and the isomers\, not only from their quadrupole moments\, but also through their rms charge radii.\n\nIn this contribution we will present t he results and their preliminary interpretation. The perspectives for exte nding the measurements towards the exotic isotopes near the doubly-magic 1 00Sn and 132Sn will be discussed\, as this is expected to shed light on a shell-quenching hypothesis and the stellar nucleosyntheses.\n\nhttp://indi co.cern.ch/contributionDisplay.py?contribId=2&sessionId=10&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=2&sessionId=10& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:HIE-ISOLDE: Status Report of the Project and Highlights DTSTART;VALUE=DATE-TIME:20111205T154500Z DTEND;VALUE=DATE-TIME:20111205T160500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-4@cern.ch DESCRIPTION:Speakers: KADI\, Yacine (CERN)\nThe HIE-ISOLDE project is a ma jor upgrade of the existing ISOLDE radioactive ion-beam facility at CERN. The present energy of 3MeV/u for post-accelerated radionuclides will be bo osted to up to 10 MeV/u which will allow experiments to address all exotic nuclides produced at ISOLDE using\, e.g.\, Coulomb excitation and nucleon transfer reactions. A R&D program on the superconducting linear accelerat or is ongoing\, including cavity manufacturing with prototype and sputteri ng tests. Besides the energy upgrade\, the beam quality has already been i mproved and the beam intensity will be increased in the future with the up grade of the CERN injector chain. An overview of the HIE-ISOLDE project an d the present status is given.\n\nhttp://indico.cern.ch/contributionDispla y.py?contribId=4&sessionId=1&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=4&sessionId=1&c onfId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Coulomb Excitation of Isomeric states of 70Cu DTSTART;VALUE=DATE-TIME:20111205T130500Z DTEND;VALUE=DATE-TIME:20111205T132500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-6@cern.ch DESCRIPTION:Speakers: RAPISARDA\, Elisa (Katholieke Universiteit Leuven (B E))\nExtensive studies on Cu neutron-rich isotopes have been performed in recent years at REX-ISOLDE in the aim to investigate the nuclear structure in the vicinity of the N=40 sub-shell closure. In particular the study of odd-odd 68\,70Cu nuclei was reported in [1] where for the first time low- energy Coulomb excitation measurements with isomeric radioactive post-acce lerated beams were performed. For the case of 70Cu\, a Iπ = 6- isomeric b eam was used to study the multiplet of states (3-\, 4-\, 5-\, 6-) arising from the π2p3/21g9/2 configuration. The isomeric nature of the 6- and 3- states was experimentally determined in previous work [2]. The beam w as produced at ISOLDE\, CERN by selective laser ionization technique and t hen post-accelerated by REX-ISOLDE to about 2.8 MeV/ nucleon. Gamma rays w ere detected with the MINIBALL high resolution Ge detector array. The 4- s tate of the multiplet was populated by Coulomb excitation and the reduced transition probability B(E2\, 6-4-) value was determined. The remaining member of the multiplet\, the 5- state\, was not observed in this experi ment .\nTo provide complementary information about the energy levels and r educed transition probabilities of the connecting transitions within the s tates of the multiplet\, a new experiment was performed using a Iπ = 3- isomeric beam. Besides the known transition deexciting the 4- state [1]\, gamma rays of 511 keV were observed for the first time and were unambigu ously associated to the 5- state deexcitation. This observation fixes the energy\, spin and parity of this state\, completing the low-energy level s cheme of 70Cu. Moreover B(E2) values for all the possible E2 transitions w ithin the multiplet are now precisely measured. A comparison with large-sc ale shell model calculations using different interactions and model spaces \, shows the importance of proton excitation across Z=28 shell gap and the role of the d5/2 neutron orbital.\n[1] I. Stefanescu et al. PRL98\, 12270 1 (2007)\n[2] J. Van Roosbroek et al. PRC69\, 034313 (2004)\n\nhttp://indi co.cern.ch/contributionDisplay.py?contribId=6&sessionId=0&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=6&sessionId=0&c onfId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:HIE-ISOLDE Beam Characteristics and HEBT Layout DTSTART;VALUE=DATE-TIME:20111205T162500Z DTEND;VALUE=DATE-TIME:20111205T164500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-9@cern.ch DESCRIPTION:Speakers: FRASER\, Matthew Alexander (University of Manchester )\nThe expected beam characteristics will be presented for each stage of t he HIE linac upgrade at 5.5 MeV/u\, 10 MeV/u and for decelerated beams at 0.45 MeV/u\, along with the layout for the HEBT line.\n\nhttp://indico.cer n.ch/contributionDisplay.py?contribId=9&sessionId=1&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=9&sessionId=1&c onfId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Probing the Quadrupole Collectivity of 128Cd using Coulomb Excitat ion DTSTART;VALUE=DATE-TIME:20111207T154000Z DTEND;VALUE=DATE-TIME:20111207T160000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-12@cern.ch DESCRIPTION:Speakers: BÖNIG\, Sabine (Technische Universität Darmstadt ( DE))\n128Cd is only two proton and two neutron holes away from the doubly magic nucleus 132Sn. The proximity to this r-process waiting-point nucleus underlines its importance for the understanding of nucleosynthesis. So fa r\, contradicting theoretical predictions for the B(E2\,0+->2+) value of 1 28Cd exist. While shell model calculations conclude an almost spherical sh ape of 128Cd\, beyond mean field calculations predict an already considera ble quadrupole collectivity. In this contribution the experimental details of the Coulomb excitation of 128Cd at REX-ISOLDE (experiment IS477) will be presented. Furthermore the current status of the analysis to determine the transition strength of the ground state into the first excited 2+ stat e will be shown. This project is supported by BMBF (No. 06 DA 9036I) and E U through ENSAR (No. 262010).\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=12&sessionId=10&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=12&sessionId=10 &confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Experiments with stored highly-charged ions at ISOLDE: TSR@HIE-ISO LDE proposal DTSTART;VALUE=DATE-TIME:20111205T151500Z DTEND;VALUE=DATE-TIME:20111205T154500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-14@cern.ch DESCRIPTION:Speakers: Dr. LITVINOV\, Yuri (GSI Helmholtzzentrum für Schwe rionenforschung\, Darmstadt\, Germany\,)\nStored in heavy-ion storage ring s\, secondary beams enable a wide range of nuclear physics experiments. Su ch experiments profit\, e.g.\, from high resolving power and excellent qu ality of cooled beams\, from high revolution frequencies\, which allows to “recycle” exotic nuclei\, from ultra-high vacuum conditions\, which a llows to preserve high atomic charge states\, from low background conditio ns\, etc. These are some of the reasons\, that a variety of novel ideas ha s been proposed in the recent years in addition to the well-established sc ientific programs on in-ring mass and half-life measurements. \nHowever\, many suggested experiments require stored\, highly-charged exotic nuclei at relatively low energies of a few MeV/u. Therefore\, it is of interest t o explore the possibility of installing a storage ring at an ISOL facility \, which naturally delivers low-emittance low-energy beams. To be more spe cific\, we propose to store HIE-ISOLDE beams in a storage ring\, where we would like to perform precision experiments. In this contribution we will present the proposal\, outline the physics cases and give the present sta tus of the project.\n\nhttp://indico.cern.ch/contributionDisplay.py?contri bId=14&sessionId=1&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=14&sessionId=1& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Recent results on beta-delayed fission from ISOLDE experiments DTSTART;VALUE=DATE-TIME:20111206T152000Z DTEND;VALUE=DATE-TIME:20111206T155000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-11@cern.ch DESCRIPTION:Speakers: Prof. ANDREYEV\, Andrei (University of the West of S cotland (UWS))\nBeta-delayed (EC/b+\, b-) fission is a rare nuclear decay process in which the beta-decaying parent nuclide populates excited states in its daughter\, which may then fission. \n\nThe talk will review the re sults of two ISOLDE experiments performed by our collaboration* in 2011\, in which beta-delayed fission of lightest Tl\, At and Fr isotopes were inv estigated. In particular\, beta-delayed fission of 202Fr was identified f or the first time and a fission fragments mass distribution was measured.\ n\n*The work was performed by RILIS-ISOLDE(CERN)-UWS\,Paisley (UK)-IKS\,KU Leuven (Belgium)-Comenius University\, Bratislava (Slovakia)-OLL\, Univer sity of Liverpool (UK)-JAEA\, Tokai (Japan)-Gatchina(Russia) collaboration \n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=11&sessionId=5& confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=11&sessionId=5& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Beta-decay studies of neutron-rich Mn isotopes DTSTART;VALUE=DATE-TIME:20111205T132500Z DTEND;VALUE=DATE-TIME:20111205T134500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-10@cern.ch DESCRIPTION:Speakers: PAUWELS\, Dieter (Belgian Nuclear Research Center (B E))\nThe neutron-rich Mn-decay studies are of particular interest due to t he recently observed rapid onset of deformation just below the 'semi-magic ' 68Ni (Z=28\,N=40)\, in the Co\, Fe and Cr isotopes. Large-scale shell-mo del calculations are on the verge of explaining quantitatively the observe d nuclear structure\, but the experimental benchmarks in this region are s till limited. The beta-decay study of neutron-rich manganese isotopes arou nd N=40 presents a wealth of new and systematic nuclear-structure informat ion in the iron\, cobalt\, and even the nickel isotopes for critical asses sments of the state-of-the-art effective interactions.\nIn October 2009\, Mn-decay data were successfully acquired for the masses A=58\,60-68\, whic h were produced in a proton-induced fission of 238U and selected using RIL IS and mass separation in HRS. The Mn ions were implanted on a moveable ta pe system surrounded by three thin plastic Delta-E beta detectors and two MINIBALL clusters for gamma detection. The detector signals were processed by digital electronics.\nThanks to the selectivity of the laser ionizatio n and the combination with previous work at the Leuven Isotope Separator O n-Line setup on Fe and Co decay\, beta-decay feeding patterns and spin ass ignments could be obtained. We will present results for the decay chains o f 63\,65\,66\,67\,68Mn. New spin assignments are made changing the interpr etation of previous data and\, for the A=66 mass chain\, comparisons with shell-model calculations will be presented.\n\nhttp://indico.cern.ch/contr ibutionDisplay.py?contribId=10&sessionId=0&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=10&sessionId=0& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Biophysics at ISOLDE DTSTART;VALUE=DATE-TIME:20111207T124000Z DTEND;VALUE=DATE-TIME:20111207T130000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-39@cern.ch DESCRIPTION:Speakers: STACHURA\, Monika (University of Copenhagen (DK))\nD ue to the complexity of systems in living matter nuclear techniques are no t commonly used in biology and biochemistry. By approaching from simple in organic complexes we aim to elucidate the fundamental chemistry of heavy m etal ion integrations with proteins. This furthermore involves studies on de novo designed peptides\, naturally occurring proteins\, plants and rece ntly also bacteria. \n\nWe will present 199mHg-PAC data on proteins and in vivo systems as well as results from the first beta-NMR experiments on so ft matter ever performed.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=39&sessionId=9&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=39&sessionId=9& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Innovative radioisotopes for nuclear medicine DTSTART;VALUE=DATE-TIME:20111206T091000Z DTEND;VALUE=DATE-TIME:20111206T093000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-38@cern.ch DESCRIPTION:Speakers: KOESTER\, Ulli (Institut Max von Laue-Paul Langevin (FR))\nWe report on first results with ISOLDE radioisotopes collected in t he frame of the LOI-121.\nWe were able to demonstrate in vivo PET and SPEC T imaging using 152Tb and 155Tb for the first time. Also in-vivo PET imagi ng with the long-lived in vivo generator 140Nd/140Pr was demonstrated\, th us enabling longitudinal in vitro and in vivo PET monitoring of the biodis tribution of antibodies over many days. \nVarious carrier-free Auger elect ron emitters are used for basic radiobiological research on the microdosim etry of such short-range radiation.\nYields and beam contaminants were det ermined for a variety of radioisotopes that are of interest for medical ap plications. \nAn outlook will be given on the planned research program and possible midterm upgrades (HIe-Isolde).\n\nhttp://indico.cern.ch/contribu tionDisplay.py?contribId=38&sessionId=2&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=38&sessionId=2& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Investigating shape coexistence in the lead region with in-source laser spectroscopy at ISOLDE-RILIS DTSTART;VALUE=DATE-TIME:20111206T155000Z DTEND;VALUE=DATE-TIME:20111206T161000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-15@cern.ch DESCRIPTION:Speakers: COCOLIOS\, Thomas Elias (CERN)\nThe competition betw een spherical and deformed nuclear shapes at low energy gives rise to shap e coexistence in the region of the neutron-deficient lead isotopes with Z~ 82 and N~104 [1]. In order to determine to which extend the ground-state o f those isotopes is affected by this phenomenon\, a large campaign of inve stigation of changes in the mean-square charge radii is on-going at ISOLDE . Using the high-sensitivity of the in-source laser spectroscopy technique \, which combines the ISOLDE-RILIS lasers with the Windmill alpha-decay sp ectroscopy setup\, it has been possible to study very exotic isotopes of l ead [2-3] and polonium [4-6]\, down to N=100 and N=107 respectively\, and more recently thallium down to N=99. In this contribution\, we shall revie w the experimental observations on lead and polonium and present the first results of the 2011 experiment on thallium.\n\n[1] A.N. Andreyev et al.\, Nature 403(2000)430\n[2] H. De Witte et al.\, PRL 98(2007)112502\n[3] M.D . Seliverstov et al.\, EPJA 41(2009)315\n[4] T.E. Cocolios et al.\, JPG 37 (2010)125103\n[5] T.E. Cocolios et al.\, PRL 106(2011)052503\n[6] M.D. Sel iverstov et al.\, Letter in preparation\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=15&sessionId=5&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=15&sessionId=5& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Advances in radioactive ion beam R&D at GANIL DTSTART;VALUE=DATE-TIME:20111207T094000Z DTEND;VALUE=DATE-TIME:20111207T101000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-48@cern.ch DESCRIPTION:Speakers: Mr. DELAHAYE\, Pierre (Grand Accelerateur National d 'Ions Lourds (FR))\nSince 2001\, SPIRAL at GANIL has been delivering radio active ion beams of gaseous elements of unique intensity and purity for ph ysics experiments. \nRecently\, a project was formed to upgrade SPIRAL for making use of so far unexploited capabilities for radioactive ion beam pr oduction. Neutron deficient beams from condensable elements should soon be come available with unequalled intensities for a number of physics cases i n nuclear astrophysics\, nuclear structure and for precision tests of the Standard Model. \nThe upgrade relies on the so called 1+ n+ method: singly charged radioactive beams are delivered from a hot plasma source\, the IS OLDE VADIS\, to an ECR charge breeder\, the Phoenix charge breeder\, which performs the multi-ionisation required by the post-accelerator. \nThe ass ociation of VADIS with the present SPIRAL target was lately tested on-line . A number of new beams were produced\, showing the potential of such asso ciation.\nThe Phoenix charge breeder\, which was previously tested at ISOL DE\, is being upgraded. So far\, modest efficiencies were obtained with th e charge breeding of light metallic ion beams in ECRIS. This upgrade is pa rt of a more general program aiming at improving the performances of charg e breeding in ECRIS and EBIS for future ISOL facilities: the EMILIE (Enhan ced Multi - Ionization of short Lived Isotopes for EURISOL) project.\n\nTh is contribution will present the latest status of these R&D projects.\n\nh ttp://indico.cern.ch/contributionDisplay.py?contribId=48&sessionId=8&confI d=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=48&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Status of the CRIS experiment DTSTART;VALUE=DATE-TIME:20111206T163000Z DTEND;VALUE=DATE-TIME:20111206T165000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-17@cern.ch DESCRIPTION:Speakers: FLANAGAN\, Kieran (University of Manchester (GB))\nT he installation of the new Collinear Resonant Ionization Spectroscopy (CRI S) experimental beam line and lasers are now nearing completion. Commissio ning tests that started towards the end of 2010 have continued throughout 2011 with beams from both ISOLDE and the newly installed off-line ion sour ce. A new detection chamber that incorporates both ion and alpha detectors has been constructed\, tested and installed into the CRIS beam line. Off- line and on-line commissioning experiments have been undertaken to study t he non-resonant background\, neutralization efficiency\, laser ionization and data acquisition. The CRIS technique uses a combination of two techni ques: resonant ionization spectroscopy (RIS) and collinear laser spectrosc opy. The initial proof of principle of the CRIS experiment has already dem onstrated an improvement in efficiency over fluorescence detection by up t o 3 orders of magnitude in some cases. The new beam line routinely operate s below 5e-9 mbar which further suppresses background events by a factor o f 50 000. This combination of high detection efficiency and low background counting rates will allow the experiment to study the rarest isotopes pro duced at ISOLDE. The first on-line run will look at the neutron deficient and neutron rich Francium isotopes. This work is motivated by the migrati on of the deformed (s1/2-1)1/2+ proton intruder state which is isomeric in 201\,203Fr and predicted to invert with the ground state in 199Fr. This talk will present the results from the off-line and on-line commissioning experiments in 2010 and 2011.\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=17&sessionId=5&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=17&sessionId=5& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Welcome DTSTART;VALUE=DATE-TIME:20111205T123000Z DTEND;VALUE=DATE-TIME:20111205T123500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-55@cern.ch DESCRIPTION:Speakers: BLUMENFELD\, Yorick (CERN)\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=55&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=55&confId=15382 0 END:VEVENT BEGIN:VEVENT SUMMARY:Laser assisted decay spectroscopy at the CRIS beam line DTSTART;VALUE=DATE-TIME:20111206T165000Z DTEND;VALUE=DATE-TIME:20111206T170500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-18@cern.ch DESCRIPTION:Speakers: LYNCH\, Kara (University of Manchester (GB))\nThe ne w Collinear Resonant Ionization Spectroscopy (CRIS) experiment at ISOLDE w ill use laser radiation to stepwise excite and ionize an atomic beam for t he purpose of ultra-sensitive detection of rare isotopes\, and hyperfine s tructure measurements. The technique also offers the ability to purify an ion beam that is heavily contaminated with radioactive isobars\, including the ground state of an isotope from its isomer\, which allows for sensiti ve secondary experiments to be performed.\n\nA new program aiming to use t he CRIS technique to select only nuclear isomeric states for decay spectro scopy has commenced this year. The isomeric ion beam is selected using a r esonance of its hyperfine structure. It is then deflected to a spectroscop y station\, consisting of a rotating wheel implantation system for alpha a nd beta decay spectroscopy\, and three high purity germanium detectors aro und the implantation site for gamma-ray detection.\n\nLaser spectroscopy w ill provide a measurement of the spin of the ground and isomeric states in the parent nucleus\, while the level structure of the daughter nucleus wi ll come from the complementary decay spectroscopy.\n\nHere we report the c urrent status of the Laser Assisted Decay Spectroscopy set-up for the CRIS beam line. A case study of 204Fr is presented\, along with recent tests c arried out on the system.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=18&sessionId=5&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=18&sessionId=5& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:MINIBALL at REX-ISOLDE: pioneering position-senstive Ge detectors DTSTART;VALUE=DATE-TIME:20111206T111000Z DTEND;VALUE=DATE-TIME:20111206T114000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-31@cern.ch DESCRIPTION:Speakers: EBERTH\, Juergen (University of Cologne)\nWith the a pproval of the REX project at ISOLDE in 1995 an intensive discussion on th e design and construction of a dedicated γ-ray array started. Due to the low intensity of the radioactive beams high detection efficiency was neede d. On the other hand\, as the γ-rays are emitted from nuclei moving with 5-10% of the speed of light a high granularity of the array was mandatory in order to limit the Doppler broadening of the γ-lines. The final decisi on was to extend the technology of the EUROBALL Cluster detectors to segme nted Ge detectors and to develop digital electronics for a further enhance ment of the position resolution by pulse shape analysis. MINIBALL so far c onsists of 24 encapsulated\, 6-fold segmented Ge detectors which are mount ed in 8 cryostats with three detectors each. Thus\, it has a granularity o f 144 which can be enhanced by one order of magnitude by pulse shape analy sis. \nA first commissioning experiment at REX-ISOLDE with a MINIBALL trip le cluster detector was performed in September 2001 and the full array was installed in May 2002. Thus\, we are looking back to 10 years of successf ul and reliable operation of MINIBALL at CERN and to an impressive list of scientific results. \nMINIBALL was an important step in the development o f position-sensitive Ge detectors. It has shown that reliable segmented Ge detectors can be produced and that the first interaction point of the γ- rays within the detector can be determined with a two-dimensional position resolution of ~ 5-8mm by pulse shape analysis in real-time. These results encouraged the development of highly segmented Ge detectors which are pos ition-sensitive in three dimensions allowing a full tracking of a γ-ray b eing scattered and finally absorbed in the Ge detector. Two γ-ray trackin g arrays\, AGATA in Europe and GRETINA in the USA\, started data taking in their demonstration phase. Both spectrometers use encapsulated\, 36-fold segmented Ge detectors which are based on the technology developed for EUR OBALL and MINIBALL.\n\nhttp://indico.cern.ch/contributionDisplay.py?contri bId=31&sessionId=3&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=31&sessionId=3& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:HIE-ISOLDE SRF development activities at CERN DTSTART;VALUE=DATE-TIME:20111205T160500Z DTEND;VALUE=DATE-TIME:20111205T162500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-30@cern.ch DESCRIPTION:Speakers: THERASSE\, Mathieu ()\nThe HIE-ISOLDE project has in itiated a new development phase on the SRF domain at CERN. In particular\, the HIE-ISOLDE project aims at the construction of the 32 Quarter Wave Re sonators (QWRs) using the Nb on Cu sputtering technology. We describe the refurbishment of the test infrastructure and the activities from the cavit y production to the cold test\, including quality assurance procedure for the correct handling of the resonators.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=30&sessionId=1&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=30&sessionId=1& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Reactions experiments induced by light exotic nuclei at REX-ISOLDE DTSTART;VALUE=DATE-TIME:20111206T133000Z DTEND;VALUE=DATE-TIME:20111206T140000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-51@cern.ch DESCRIPTION:Speakers: TENGBLAD\, Olof (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))\nThe ability to produce beams of unstable nucle i has changed Nuclear Physics experiments. These beams permit fundamental experiments in order to understand the nuclear structure and processes of astrophysical interest far out from the Valley of Stability.\nThe REX-ISOL DE facility has allowed us to carry out experiments with exotic nuclei\, i n an energy range never explored up to date\, characterize them and to stu dy the adjacent resonances that can explain how these exotic systems can b e formed.\nOne of the most important and unexpected discoveries of Nuclear Physics during the last decades has been the neutron halo in some nuclei close to or at the drip line. The halo is a threshold phenomenon. A halo s tate results basically in the presence of bound states close to the contin uum. The two neutron halo states situated at the threshold that separates the discreet spectrum from the continuum are maintained bound by forces th at in the un-bound\, neighbouring nuclei\, give rise to resonant states wh ose break-up gives us information on the final state interactions (FSI). \ nWe began with the characterization of the resonant nucleus 10Li that is o ne of the binary subsystems of the halo nucleus 11Li and its structure is of capital importance for the theoretical interpretation of the halo. In r eactions of 9Li on a deuterated target we have been able to obtain the exc itation energy of 8Li and to deduce the corresponding spectroscopic factor s thanks to the modelling carried out by the group at Seville. \nIn this p resentation we will discuss the experiments we have performed and the resu lts obtained over the last years of REX operation. We will also give an ou tline for the continuation of these studies taking advantage of the upgrad es leading to the HIE-ISOLDE facility.\n\nhttp://indico.cern.ch/contributi onDisplay.py?contribId=51&sessionId=4&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=51&sessionId=4& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:A first determination of the beta-neutrino angular correlation at the WITCH experiment DTSTART;VALUE=DATE-TIME:20111205T142500Z DTEND;VALUE=DATE-TIME:20111205T144500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-36@cern.ch DESCRIPTION:Speakers: BREITENFELDT\, Martin (Katholieke Universiteit Leuve n (BE))\nLow energy precision experiments for the search of exotic compon ents in the weak interaction are complementary to the high energy experime nts at the colliders dedicated to discover new particles. In the case of t he WITCH experiment the beta neutrino angular correlation after nuclear be ta decay is studied. A deviation from the distribution as predicted by the standard model will reveal the exotic interactions.\nFor the study of the weak interaction WITCH combines a Penning trap arrangement to provide a s cattering free source of beta-decaying nuclides with a MAC-E filter setup to analyze the recoil energy distribution. This year in June the first coa rse recoil energy spectrum could be obtained\, which allowed a first extra ction of the beta neutrino angular correlation coefficient with statistica l uncertainty of 50%. With further developments and longer experiment time it is expected to push the statistical uncertainty in the October run bel ow 1% during the October run.\nIn this talk the results for the beta neutr ino angular correlation $a$ of the WITCH campaigns are presented and discu ssed.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=36&session Id=0&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=36&sessionId=0& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Trapped Antihydrogen - Stable\, Neutral Antimatter DTSTART;VALUE=DATE-TIME:20111206T170500Z DTEND;VALUE=DATE-TIME:20111206T170500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-53@cern.ch DESCRIPTION:Speakers: HANGST\, Jeffrey Scott (Aarhus University (DK))\nAnt ihydrogen\, the bound state of an antiproton and a positron\, can be used as a test-bed of fundamental symmetries. In particular\, the CPT Theorem requires that hydrogen and antihydrogen have the same spectrum. The curren t experimental precision of measurements of hydrogen transition frequencie s approaches 1 part in 10^15. Similarly precise antihydrogen spectroscopy would constitute a unique\, model-independent test of CPT symmetry. Antih ydrogen atoms have been produced in quantity at CERN since 2002\, when the ATHENA collaboration demonstrated [1] how to mix cryogenic plasmas of ant iprotons and positrons to produce low energy anti-atoms. In this colloquiu m I will discuss the newest development along the road to antihydrogen spe ctroscopy: magnetically trapped antihydrogen. In November of 2010 the ALP HA collaboration reported [2] the first trapping of antihydrogen atoms in a magnetic multipole trap. The atoms must be produced with an energy - i n temperature units - of less than 0.5 K in order to be trapped. Shortly afterward\, ALPHA demonstrated that it was possible to store trapped antih ydrogen atoms for up to 1000 seconds [3]. I will discuss the many develop ments necessary to realise trapped antihydrogen\, the ongoing efforts to r esonantly interact with antihydrogen\, and the future of antihydrogen phys ics at CERN.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=53& sessionId=6&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=53&sessionId=6& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:The REX-ISOLDE post accelerator – from first stumbling beams to sophisticated ion juggler DTSTART;VALUE=DATE-TIME:20111206T104000Z DTEND;VALUE=DATE-TIME:20111206T111000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-52@cern.ch DESCRIPTION:Speakers: WENANDER\, Fredrik John Carl (CERN)\nREX-ISOLDE has now been operational as post-accelerator of radioactive ion produced at IS OLDE for over ten years. Close to 100 isotopes from 30 different elements have been accelerated and delivered to numerous experiments at varying bea m energies. The technical challenges encountered during the installation a nd commissioning phase of the machine will be briefly reviewed\, and the p resent performance of REX-ISOLDE will be compared with the initial specifi cations and predictions given in the proposal from 1994. Subsequent to the installation the machine has undergone continuous development in order to respond to different experimental requirements concerning\, for example\, beam energy and purity\; ion mass range and lifetime\; and beam intensiti es and timing structure. The different methods addressing these issues wil l be discussed. Finally\, a glimpse of the performance that can be expecte d from the machine in the future will be given.\n\nhttp://indico.cern.ch/c ontributionDisplay.py?contribId=52&sessionId=3&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=52&sessionId=3& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Beam Instrumentation for the HIE-REX linac DTSTART;VALUE=DATE-TIME:20111205T164500Z DTEND;VALUE=DATE-TIME:20111205T170500Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-19@cern.ch DESCRIPTION:Speakers: ZOCCA\, Francesca (Consejo Superior de Investigacion es Cientificas (CSIC) (ES))\nIn the framework of the High Intensity and E nergy (HIE)-ISOLDE project\, a beam instrumentation R&D program is on-goin g for the superconducting upgrade of the REX linac (HIE-REX). An overview of the main beam diagnostics developments is presented\, focusing on the c hallenging specifications required by the superconducting linac. The proje ct includes intensity and transverse profile monitors to be implemented in the very narrow space available between the foreseen cryomodules. A longi tudinal profile monitor to be placed downstream the linac will provide ene rgy and timing beam distributions and will allow for a fast phase-tuning o f the foreseen 32 superconducting cavities.\n\nhttp://indico.cern.ch/contr ibutionDisplay.py?contribId=19&sessionId=1&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=19&sessionId=1& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Nanostructured Calcium Oxide Targets for the Production of Argon B eams DTSTART;VALUE=DATE-TIME:20111207T102500Z DTEND;VALUE=DATE-TIME:20111207T104000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-54@cern.ch DESCRIPTION:Speakers: RAMOS\, Joao Pedro (University of Aveiro)\nCalcium o xide powder targets have been successfully used at ISOLDE-CERN to produced neutron deficient exotic argon isotopes and carbon isotopes\, released as CO and CO2 molecules. Such targets outperform other related targets used to produce the same beams\, such as MgO sintered powder or TiOx fibers. Ho wever\, either some CaO target units displayed slow release rates (or low absolute yields) from the beginning or a rapid decrease over time when ope rated under proton irradiation.[1] We found that the good performance of t he ISOLDE historical targets was related to a structure of a nanometric sc ale.[2\,3] Its fast degradation was mainly caused by sintering due to the high operation temperatures and/or high proton intensities being responsib le for the fast drop of the yields. Taking this into account\, systematic studies of: the synthesis conditions\, sintering kinetics and the air rea ctivity of the nanometric powder were performed\; all in order to improve/ maintain the target nanostructural properties. A new production and operat ion methods were proposed and tested at ISOLDE in order to improve the rel ease properties\, in terms of diffusion and effusion of isotopes. Improved yields of exotic Ar beams and no sign of degradation were observed during the operation of the CaO #469\, target unit of this year.\n\nReferences:\ n[1] Ravn\, H. L. et al. Bunched Release of Gases from Oxide Targets. Nucl ear Instruments and Methods in Physics Research B: Beam Interactions with Materials and Atoms 1997\, 126\, 176-181.\n[2] Stora\, T. et al.\, Nanostr uctured Target for Isotope Production\, WO 2010/034364 A1\, 2010.\n[3] Fer nandes\, S. Submicro- and Nanostructured Porous Materials for Productin of High-Intensity Exotic Radioactive Ion Beams\; PhD Thesis\; École Polytec hnique Fédérale de Lausanne: Lausanne\, 2011.\n\nhttp://indico.cern.ch/c ontributionDisplay.py?contribId=54&sessionId=8&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=54&sessionId=8& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:Lattice location of the transition metals Co and Ni in Si DTSTART;VALUE=DATE-TIME:20111207T132000Z DTEND;VALUE=DATE-TIME:20111207T134000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-33@cern.ch DESCRIPTION:Speakers: Mr. SILVA\, Daniel (Universidade do Porto)\nWe have studied the lattice location of the transition metals 61Co (1.6 h) and 65N i (2.5 h) in Si single crystals of various doping types by means of on-lin e Emission Channeling using Short-Lived Isotopes (IS453 EC-SLI). 65Ni was directly obtained by means of Ni RILIS ionization\, while for the 61Co exp eriments we implanted the short-lived precursor isotope 61Mn(4.6 s) which decays via 61Fe (6 min) to 61Co\, during the Mn RILIS run. In this case on ly measurements after a waiting period of 30 min were considered.\nThe sam ples were low-doped n-Si (7.3-12 Ohm cm\, in the following named i-Si)\, a s well as highly p+ (0.0053 Ohm cm) and n+ (0.0030 Ohm cm) doped Si.\nWhil e full quantitative analysis of the measured EC-SLI patterns by means of f itting to the results of manybeam simulations of emitter atoms on various lattice sites has not yet been performed\, a qualitative inspection gave t he following preliminary results.\n\nDirectly after room temperature impla ntation\, the major lattice sites occupied by 61Co and 65Ni were substitut ional or near-substitutional sites in all doping types studied.\nHowever\, after annealing at 500°C 65Ni changed to tetrahedral interstitial (T) si tes in i-Si and p+-Si\, while the majority of 65Ni in n+-Si was found on b ond-centered (BC) interstitial sites after the same annealing temperature. \nSite changes to interstitial T sites were also observed for 61Co in i-Si and p+-Si\, while the case of 61Co in n+-Si is still waiting to be measur ed at next year's Mn beam time. \n\nThe behaviour of Co and Ni in Si shows hence some similarities to Fe in i-Si\, where site changes from near-S to T sites were already observed in previous \nexperiments. However\, there are also clear differences. While the site changes S->T in the case of Ni and Co occurred already after annealing at 475-500°C\, in the case of Fe in i-Si around 600°C was required in order to promote the corresponding e ffect. \nAlso\, while Fe showed considerable resistance against high-tempe rature annealing\, which went along with the occupation of ideal substitut ional sites after 900°C annealing\, Co and Ni started to show partial out -diffusion from the samples already for annealing temperatures in the 600- 850°C range.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=33 &sessionId=9&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=33&sessionId=9& confId=153820 END:VEVENT BEGIN:VEVENT SUMMARY:LAND-R3B: Experimental Results and Technical Developments DTSTART;VALUE=DATE-TIME:20111206T142000Z DTEND;VALUE=DATE-TIME:20111206T145000Z DTSTAMP;VALUE=DATE-TIME:20130525T223020Z UID:indico-contribution-153820-50@cern.ch DESCRIPTION:Speakers: BORETZKY\, Konstanze (GSI)\nIn this talk I will disc uss briefly the experimental concept of the R3B experiment and concentrate on some of its recent results concerning two types of reactions\, namely quasi-free scattering and electromagnetic excitation. \n \nQuasi-free scat tering aims at a detailed study of the single-particle structure of nuclei \, while electromagnetic excitation is being used to study the collective response of nuclei. Our experiments\, performed in inverse kinematics\, a llow exotic nuclei to be investigated in both respects. \n \nThe experimen tal findings for low-lying dipole strength\, often referred to as pygmy di pole resonance\, for exotic Sn isotopes will be discussed in the context o f their possible relation to parameters of the equation of state of asymme tric nuclear matter. \n \nFor quasi-free scattering in inverse kinematics\ , first results from pilot experiments will be presented. \n \nAn overview on the further development of the existing setup into the R3B experiment at the FAIR facility will be given.\n\nhttp://indico.cern.ch/contributionD isplay.py?contribId=50&sessionId=4&confId=153820 LOCATION:CERN Council Chamber URL:http://indico.cern.ch/contributionDisplay.py?contribId=50&sessionId=4& confId=153820 END:VEVENT END:VCALENDAR