BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Radiation Effects on Fusion Magnet Components DTSTART;VALUE=DATE-TIME:20100225T130000Z DTEND;VALUE=DATE-TIME:20100225T150000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-84226@cern.ch DESCRIPTION:Applications of large superconducting magnets\, e.g. in partic le accelerators or in nuclear fusion devices\, require a safe magnet opera tion over the plant lifetime. Therefore\, "material test programmes" in a specific radiation environment to simulate the operating conditions of the magnet and to assess the radiation response of each of the magnet compone nts are essential.\nIn a brief introduction\, I’ll review the radiation environment expected at the magnet location of a fusion device\, either of ITER or of design studies for later fusion power reactors. According to t he present state of the art\, the magnets will consist of metallic superco nductors operating at liquid helium temperatures\, i.e. stabilised multifi lamentary conductors made from Nb3Sn or similar compounds\, and of glass-f ibre reinforced epoxies as the insulation material.\nExperimental results on the radiation-induced changes of the critical current densities Jc\, th e transition temperature Tc and the upper critical field Hc2 of the superc onductors\, on the resistivity of the stabiliser\, and on the mechanical a nd electrical properties of the insulating materials will be presented and evaluated in terms of the requirements set for this application. We will conclude that the currently envisaged superconductors are suitable for ITE R\, but that the insulation will need modifications\, i.e. the epoxies wil l have to be replaced by radiation-harder compounds (cyanate ester / epoxy blends). The corresponding qualifica tion programmes for ITER are current ly under way at ATI.\nFinally\, radiation effects on high temperature supe rconductors will be discussed. Although these materials are presently not suited for the construction of superconducting high field magnets operatin g in the liquid nitrogen temperature range\, they will certainly play an i mportant role in the future. The results show that irradiation of these ma terials by suitable particles\, in particular fast neutrons\, leads to an enormous improvement of their flux pinning capability. Considering the rap id developments in this field of research\, in particular the dramatic imp rovements in the processing technologies\, predictions on their role in fu ture fusion devices are somewhat premature. It is\, however\, obvious that extended dedicated R&D efforts will be required to reach this goal.\n\nht tp://indico.cern.ch/conferenceDisplay.py?confId=84226 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=84226 END:VEVENT BEGIN:VEVENT SUMMARY:Techniques of mechanical measurements for CERN applications and en vironment DTSTART;VALUE=DATE-TIME:20100311T130000Z DTEND;VALUE=DATE-TIME:20100311T150000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-87028@cern.ch DESCRIPTION:Mechanical measurements are needed in a large variety of activ ities at CERN. The Mechanical Measurement Lab of EN/MME group is equipped to perform a very large range of mechanical tests at ambient as well as cr yogenic temperatures and in magnetic fields. In particular for the R&D pro gram of new magnets\, force transducers based on strain and capacitive gau ges are developed and used at CERN. In 2010\, the generation of new data a cquisition systems allows to measure simultaneously the strain gauges\, th e capacitive gauges and other external parameters (current\, temperature\, etc…). Mechanical measurements at CERN include also other fields of int erest such as mechanical failure analysis\, FEA validation\, and vibration characterisation. Ground motion measurements are carried out for the CLIC stabilisation activities.\nThis seminar will give an overview of the mech anical measurement techniques used by EN-MME lab. Furthermore the seminar will focus on the experimental performances of the new system developed to measure simultaneously the strain and capacitive gauges. The dynamic stre ss measurements will also be discussed with an example of failure analysis .\n\nMichael Guinchard graduated DUT Mesures Physiques in 1996 from the St rasbourg University of Technology. He worked for General Motors in the Noi se and Vibration Laboratory of the European Technical Centre during 6 year s and followed in parallel courses in instrumentation – measurements wit h the CNAM (Conservatoire National des Arts et Métiers). He is in charge of the Mechanical Measurements Lab since 2005.\n\nhttp://indico.cern.ch/co nferenceDisplay.py?confId=87028 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=87028 END:VEVENT BEGIN:VEVENT SUMMARY:Impedance Model of the CERN SPS and Aspects of LHC Single-Bunch St ability DTSTART;VALUE=DATE-TIME:20100318T130000Z DTEND;VALUE=DATE-TIME:20100318T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-87052@cern.ch DESCRIPTION:Upgrades of the CERN particle accelerators complex are planned to increase the potential of physics discovery in the LHC. In this respec t\, the beam coupling impedances of the SPS and LHC are expected to be amo ng the limitations to the intensity upgrade scheme.\nIn this talk\, we pre sent a general framework to better understand the impedance of a particle accelerator: in a first step\, the impedance of single components are gath ered into an impedance model accounting for the whole machine and then\, i n order to assess the relevance of this impedance model\, its impact on be am dynamics is simulated and can be compared to impedance observables meas ured with beam.\nThis general framework was applied to compute a more accu rate transverse impedance model of the SPS from theoretical models for the 20 kickers and the 6.9 km long beam pipe\, as well as time domain electro magnetic simulations of the 106 horizontal and 96 vertical SPS beam positi on monitors. Comparing HEADTAIL macroparticle simulations to beam-based me asurements in the SPS\, this transverse impedance model turned out to acco unt for 65% of the vertical impedance measured in the machine and showed i n addition that the large negative quadrupolar horizontal impedance of the kickers can be held responsible for the measured positive coherent horizo ntal tune shift with increasing beam intensity.\n\nhttp://indico.cern.ch/c onferenceDisplay.py?confId=87052 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=87052 END:VEVENT BEGIN:VEVENT SUMMARY:Modeling\, Simulation and Control of CERN cryogenic systems DTSTART;VALUE=DATE-TIME:20100325T130000Z DTEND;VALUE=DATE-TIME:20100325T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-87314@cern.ch DESCRIPTION:This work deals with the development of a large-scale cryogeni c process simulator applied to CERN cryogenic facilities. The CERN control architecture is also simulated embedding the control performed by Program mable Logic Controllers (PLC) and the supervision system. This simulator h as been designed to serve different objectives as the operator training\, the PLC code checking (virtual commissioning) and the control strategies o ptimisation. The different cryogenic systems which have been modeled and s imulated are: the CMS cryoplant\, the central helium liquefier and a LHC c ryoplant with the cryogenic distribution line (QRL). Finally\, a new contr ol law has been designed to enhance the high pressure control in LHC heliu m refrigerators using dynamic simulations. Moreover\, a floating pressure control has been developed in order to fit the refrigeration power to the requested load. This technique aims to reduce operation costs of LHC cryog enic systems by reducing compressor electrical power.\n\nhttp://indico.cer n.ch/conferenceDisplay.py?confId=87314 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=87314 END:VEVENT BEGIN:VEVENT SUMMARY:An Early Separation Scheme for the LHC Luminosity Upgrade DTSTART;VALUE=DATE-TIME:20100408T120000Z DTEND;VALUE=DATE-TIME:20100408T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-88978@cern.ch DESCRIPTION:In this seminar we evaluate the potential of the Early Separat ion Scheme for the Luminosity Upgrade of the Large Hadron Collider. The ma in goal of the Early Separation Scheme is to reduce the crossing angle bet ween the proton beams at the collision point in order to increase the lumi nosity performance of the machine and to alleviate\, at the same time\, th e detrimental effects due to the electromagnetic interaction between the b eams.\nThe Early Separation Scheme consists of four dipoles for each of th e two high luminosity Interaction Points of the LHC\, corresponding to the ATLAS and CMS detectors. Two dipoles out of the four\, the so-called D0 d ipoles\, have to be integrated in the experimental cavern.\nWe show that\, working in synergy with an increased beam current and with a stronger fin al focusing system\, the Early Separation Scheme can provide an integrated luminosity of 3000 inverse fb over a period of 7 years with a leveled lum inosity of 5.5 10**34 cm**(-2)s**(-1).\n\nhttp://indico.cern.ch/conference Display.py?confId=88978 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=88978 END:VEVENT BEGIN:VEVENT SUMMARY:Special Seminar\, Oral presentations at the IPAC 2010 DTSTART;VALUE=DATE-TIME:20100519T120000Z DTEND;VALUE=DATE-TIME:20100520T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-94805@cern.ch DESCRIPTION:AbstractThe oral presentations of the BE\, TE and EN departmen ts at the International Particle Accelerator Conference 2010 at Kyoto\, Ja pan\, will be presented to the benefit of those who do not attend the conf erence. This includes contributed as well as invited papers.Organizer : W . Herr BE/ABP  \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=948 05 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=94805 END:VEVENT BEGIN:VEVENT SUMMARY:Laser Acceleration and Fundamental Physics DTSTART;VALUE=DATE-TIME:20100603T121500Z DTEND;VALUE=DATE-TIME:20100603T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-95559@cern.ch DESCRIPTION:Taking judicious advantage of the relativistic dynamics of pla sma under intense laser fields\, Laser Wakefield Acceleration (LWA) is cap able of boosting energies of electrons to multi-GeV and perhaps TeV in a c ompact fashion. recent experiments have demonstrated the proof-of-principl e of electron acceleration by this method in the GeV range. Now it is nece ssary to go toward 10-100 GeV as a next step with a multi-stage accelerato r. The spatiotemporal compactification and the energy density magnificatio n by many orders pose us a challenge to keep the intense laser acceleratio n process under finesse control. It is also simultaneously necessary to be gin a serious research on high-efficiency and high-repetition laser techno logy that meets the collider requirements. ICFA and ICUIL (International C ommittee for Ultra Intense Lasers) have started collaborating toward this goal. beyond this\, intense lasers usher in a unique method of high field physics other than the collider application. We introduce a few examples o f this kind. These include: the measurement of photon-photon scattering in exploring the QED fields and some low-energy fields such as dark energy\, the warping of quasi-macroscopic spacetime by the intense fields\, and th e possibility of generating PeV gamma-photons in a laboratory and testing the special theory of relativity\, feeling the texture of vacuum due to qu antum gravity. mentioned will be a possible exploration of these concepts at the forthcoming ELI (Extreme Light Infrastructure) or some other facili ty.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=95559 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=95559 END:VEVENT BEGIN:VEVENT SUMMARY:An Overview of the iThemba LABS Facilities DTSTART;VALUE=DATE-TIME:20100802T121500Z DTEND;VALUE=DATE-TIME:20100802T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-102413@cern.ch DESCRIPTION:iThemba LABS is a multi-disciplinary research center in South Africa. It provides accelerator and ancillary facilities for:\n\n- Researc h and training in physical\, biomedical and material sciences\n- Research in the treatment of cancer with energetic neutrons and protons\n- Developm ent and production of radioisotopes and radiopharmaceuticals for use in nu clear medicine\, research and industry\n\nIn this presentation I will disc uss the different ion sources\,\naccelerators\, beam lines\, and diagnosti cs systems which are used to\nproduce the high energy beams. Furthermore\, a short introduction of\nexperiments and applications will be presented.\ n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=102413 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=102413 END:VEVENT BEGIN:VEVENT SUMMARY:EMMA\, design and commissioning of a non-scaling FFAG DTSTART;VALUE=DATE-TIME:20101007T121500Z DTEND;VALUE=DATE-TIME:20101007T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-107214@cern.ch DESCRIPTION:EMMA (Electron Machine with Many Applications) is a prototype non-scaling electron FFAG hosted \nat Daresbury Laboratory. NS-FFAGs relat ed to EMMA have an unprecedented potential for medical \naccelerators for carbon and proton hadron therapy. It also represents a possible active ele ment \nfor an ADSR (Accelerator Driven Sub-critical Reactor). This talk wi ll summarize the design of \nthe injection and extraction transfer lines o f the NS-FFAG as well as the septa and kickers used \nto inject into the E MMA ring and the EMMA ring itself. Finally\, a short description of the la test \ncommissioning progress shall also be given. In order to operate EMM A\, the ALICE energy recovery \nlinac prototype shall be used as injector and the energy will range from 10 to 20 MeV. \nBecause this is the first n on-scaling FFAG\, it is important that as many of the bunch properties \na re studied as feasible\, both at injection and at extraction. To do this\, an injection line was \ndesigned consisting of a dogleg to extract the be am from ALICE\, a matching section\, a tomography \nsection and some addit ional dipoles and quadrupoles to transport the beam to the entrance of EMM A. \nIn parallel with injection a future dedicated extraction / diagnostic line is also discussed. \nWe shall also describe the mechanical and magne t challenges of the injection and extraction regions\, \nin particular the septa and kickers.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=1 07214 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=107214 END:VEVENT BEGIN:VEVENT SUMMARY:Optical fibers for the CERN accelerators and experiments DTSTART;VALUE=DATE-TIME:20101014T121500Z DTEND;VALUE=DATE-TIME:20101014T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-109213@cern.ch DESCRIPTION:EN/EL has installed and commissioned a large amount of optical fibers in the LHC machine and experiments allowing for high speed data co mmunication over a flexible network in areas with ionising radiation. Afte r a short introduction on optical communication and fiber blowing experien ce at CERN\, this seminar will focus on the specialty fibers which have be en designed to give low attenuation of light even at very high radiation d oses summarizing the last 5 years of R&D in this area. The seminar is acce ssible for non-experts in the field.\n\nhttp://indico.cern.ch/conferenceDi splay.py?confId=109213 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=109213 END:VEVENT BEGIN:VEVENT SUMMARY:Performance evaluation of a crystal-enhanced collimation system fo r the LHC DTSTART;VALUE=DATE-TIME:20101104T131500Z DTEND;VALUE=DATE-TIME:20101104T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-112213@cern.ch DESCRIPTION:\n Abstract\n The Large Hadron Collider (LHC) beams\, currentl y accelerated to 3.5 TeV\, are meant to reach the nominal energy of 7 TeV\ , and a total stored energy\, in nominal conditions\, of 360 MJ per beam.   The contrast between the huge stored power and the delicate cryogenic e nvironment calls for a sophisticated collimation system. For overcoming th e limitations of the actual collimation system\, different upgrade solutio ns have been considered\; this Ph.D. work gives a first performance evalua tion of a crystal-enhanced collimation system by analytical\, experimental and simulation investigations.\n In the presentation\, two crystal collim ation experiments are described: the T980 (Tevatron\, Chicago\, U.S.) and the UA9 (SPS\, CERN\, Geneva\, Switzerland). The data are analyzed and act ual crystal performances are measured. These experimental results and thei r cross-check with dedicated simulations constitute the foundations of a w eighted\, critical prediction for the LHC. Different scenarios for a possi ble LHC crystal-enhanced collimation system have been simulated. Here the results are presented and optimal parameters for a possible crystal collim ator are proposed.\n  \n\nhttp://indico.cern.ch/conferenceDisplay.py?conf Id=112213 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=112213 END:VEVENT BEGIN:VEVENT SUMMARY:Standard and experimental approach for advanced controls in cryoge nics DTSTART;VALUE=DATE-TIME:20101125T131500Z DTEND;VALUE=DATE-TIME:20101125T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-113234@cern.ch DESCRIPTION:The presented work deals with the problem of modeling and proc ess control applied to ATLAS-Argon calorimeter and NA62-Krypton calorimete r currently operated at CERN.\nIn such systems\, the superposition princip le does not often hold true\, due to the strong nonlinearities of the cryo genic gases behavior. In this context a traditional well-established and a dvanced control techniques may pose problems for their practical implement ation and operation. In large scale installations such as those discussed in this work\, the experimentation possibilities are strongly limited. For this reason\, an extensive use of simulation has been applied both in the mathematical modeling of the physical phenomena as well as in the design and validation of new control laws. The proposed techniques aim to improve operation performances and reliability of the aforementioned cryogenic sy stems.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=113234 LOCATION:CERN Filtration Plant URL:http://indico.cern.ch/conferenceDisplay.py?confId=113234 END:VEVENT BEGIN:VEVENT SUMMARY:What happened to your protons ? DTSTART;VALUE=DATE-TIME:20101214T100000Z DTEND;VALUE=DATE-TIME:20101214T110000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-113733@cern.ch DESCRIPTION:An overview is given of how the LHC experiments used the many collisions delivered to all interaction points.\nSelected highlights of ph ysics results\, detector commissioning and characterisation of the beam co nditions will be presented.\n\nhttp://indico.cern.ch/conferenceDisplay.py? confId=113733 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=113733 END:VEVENT BEGIN:VEVENT SUMMARY:Study of nuclear fuel element materials by advanced techniques DTSTART;VALUE=DATE-TIME:20110309T100000Z DTEND;VALUE=DATE-TIME:20110309T110000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-128754@cern.ch DESCRIPTION:Nuclear fuel elements are constituted of the fuel material its elf and both cladding and structural setup materials composed of Zircaloy (Zry). \nDuring their use in nuclear reactors these materials under neutro n and/or fission product irradiation undergo defect formation as well as p hase segregation such as bubble formation or precipitations. These process es could modify the properties of the materials during extension of their use in reactor.  \nThese materials are investigated at the Laboratory for Nuclear Materials (LNM) by combining techniques such as micro x-ray fluor escence (µXRF)\, micro x-ray diffraction (µXRD) and micro x-ray absorpti on spectroscopy (µXAS) from the corrosion product deposit layer through t he bulk metal layers. Scanning Transmission X-ray Microspectroscopy (STXM) has been used to characterise secondary phases precipitates (SPP’s) in Zry and muon Spin Relaxation (muSR) was applied to characterise defects in Zry metal. For the fuel materials\, small angle neutron scattering (SANS) has been used in the case of specific simulated fuels (i.e. Inert Matrix Fuel). This presentation shows how versatile the combination of these tech niques is to investigate local structures at the atomic level and the occu rrence of defects or pores. Examples will be given\, starting with corrosi on product deposits on the cladding\, progressing through the cladding mat erial itself and ending within the fuel material. The effect of irradiatio n (or its simulation) on the materials shall be described based on the spe cific investigations. The behavior of PWR and BWR cladding material was as sessed by feeling defects in Zircaloy by extended X-ray absorption fine st ructure (XAFS) and muSR analyses using muons as probes. Fuel analyses in t heir solid solutions (homogeneous) and later in heterogeneous phases are b eing investigated for MOX samples e.g. combining µXRD and µXAFS. First r esults will be presented. In these studies\, XAS is used throughout in a 1 D\, 2D or even 3D mode. Such investigations are crucial to progress in the understanding of the processes occurring in the materials used in Generat ions II & III reactors.\n\nhttp://indico.cern.ch/conferenceDisplay.py?conf Id=128754 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=128754 END:VEVENT BEGIN:VEVENT SUMMARY:High Field Superconductors beyond Nb3Sn DTSTART;VALUE=DATE-TIME:20110315T131500Z DTEND;VALUE=DATE-TIME:20110315T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-130890@cern.ch DESCRIPTION:All conductors beyond Nb-Ti exert a price for their higher Tca nd Hc2.  For accelerator magnets\, very high Jccomes with the penalty of coupled filaments and a radial inhomogeneity of the filament properties th at is hard to measure and fully evaluate.  Moreover its Tcand Hc2limits s eem immutable\, about 20 T for saddle magnets or 24 T in solenoids\, makin g higher field materials of interest for future magnets.  At the National High Magnetic Field Laboratory\, we are committed to user superconducting magnets that go well above 30 T and are exploring the use of both round w ire Bi-2212 and REBCO coated conductor tapes for solenoid magnets.  We ha ve so far demonstrated small coil use without degradation to fields of alm ost 34 T in background fields provided by resistive magnets.  All of thes e developments depend on the development of reliable conductor technologie s.  I will provide a perspective on the properties of state of the art co nductors of Bi-2212 and REBCO and recent coil work at the NHMFL.http://ind ico.cern.ch/categoryDisplay.py?categId=2725\n\nhttp://indico.cern.ch/confe renceDisplay.py?confId=130890 LOCATION: 30-7-010 URL:http://indico.cern.ch/conferenceDisplay.py?confId=130890 END:VEVENT BEGIN:VEVENT SUMMARY:Long Range Beam-Beam Compensation experiments in RHIC DTSTART;VALUE=DATE-TIME:20110407T121500Z DTEND;VALUE=DATE-TIME:20110407T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-131559@cern.ch DESCRIPTION:\n Long-range effects are a potential limit to the LHC perform ance with the nominal design parameters. These effects may become increasi ngly detrimental for the foreseen LHC upgrades scenarios. To mitigate long -range effects\, current carrying wires parallel to the beam were proposed . Two such wires were installed in the RHIC to study the effect of strong long-range beam-beam effects\, as well as the compensation of a single lon g-range interaction. The tests provide benchmark data for simulations and analytical treatments. Results from several long-range experiments perform ed over a period of five years at RHIC are presented with some comparisons to simulations.\n  \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId =131559 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=131559 END:VEVENT BEGIN:VEVENT SUMMARY:Computational Fluid Dynamics team supports CERN development DTSTART;VALUE=DATE-TIME:20110519T120000Z DTEND;VALUE=DATE-TIME:20110519T130000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-138647@cern.ch DESCRIPTION:Computational Fluid Dynamics (CFD) team provides assistance t o the LHC machine and detectors during the prototype\, design\, developme nt and operation phases of their components with numerical simulations. Th e bulk of studies performed are mainly related to the cooling of detector components. Lately a new open source simulation software is under testing for future development.\n \nThis seminar presents two of latest relevant case studies:\n Radio Frequency Cavity air cooling:\nThe main goal of the CFD study is to simulate the air flow behaviour and heat exchange inside a new rf-cavity developed at CERN to pre-design and optimise the forced ai r convective cooling of the cavity.\n CAST He-3 gas\nThis developmentis f ocused on studying the He-3 gas system in CAST experiment (CERN Axion Sola r Telescope). The experiment aims at detecting axions originating from the 15 million degree plasma in the Sun's core. In order to extend the CAST s ensitivity to higher axion rest masses\, the magnet beam pipes are filled with He-3 gas atlow pressureandlow temperature. Stability in gas density d istribution is needed during the measurements. Simulations will help to de fine the measuring region and optimise the set-up for desired settings.\n  \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=138647 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=138647 END:VEVENT BEGIN:VEVENT SUMMARY:MEGAPIE - The (almost) whole life of a liquid metal target DTSTART;VALUE=DATE-TIME:20110623T121500Z DTEND;VALUE=DATE-TIME:20110623T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-142569@cern.ch DESCRIPTION:Dr. Michael Wohlmuther on behalf of the MEGAPIE project\n \nH ead of Target Development Group\, Paul Scherrer Institute (PSI)\, CH-5232 Villigen\n \nMEGAPIE (Megawatt Pilot Experiment) is a joint international project started in the year 2000 to design\, build\, operate\, dismantle\ , dispose and examine a liquid lead bismuth eutectic (LBE) spallation targ et. The MEGAPIE target was the first liquid metal target ever operated in the Megawatt regime\, at a power level of 0.8 MW\, in the Swiss spallation neutron source (SINQ). The target has successfully been irradiated in a p eriod from August until December 2006\, receiving a total beam charge of 2 .8 Ah of 590 MeV protons. After successful operation it was stored in the target storage facility of SINQ\, waiting for its post irradiation examina tion\, PIE. In the time since the end of 2006 several campaigns of tests h ave been conducted by PSI and interim storage facility of Swiss nuclear po wer plants - ZWILAG - in the hot cells of ZWILAG. In these tests the feasi bility of the conditioning of the target and the extraction of target samp le pieces for the PIE has been proven. In June 2009 the dismantling of the MEGAPIE target started. The target was successfully cut into 21 pieces\; ten of these pieces have been shipped back to the Hot Laboratory of PSI to produce samples of the structural materials as well as the LBE\, while th e remaining parts of the MEGAPIE target were conditioned to become nuclear waste. Just two weeks ago  the\nPIE preparation phase was started. We re port on the status of the MEGAPIE project\, providing a general overview o n the milestones achieved up to now. In addition an outlook on the PIE pha se of MEGAPIE will be given.\n\nhttp://indico.cern.ch/conferenceDisplay.py ?confId=142569 LOCATION:CERN Salle Bohr URL:http://indico.cern.ch/conferenceDisplay.py?confId=142569 END:VEVENT BEGIN:VEVENT SUMMARY:A&T Sector oral papers to be presented at the conference IPAC11 DTSTART;VALUE=DATE-TIME:20110902T064500Z DTEND;VALUE=DATE-TIME:20110902T103000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-152283@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=152283 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=152283 END:VEVENT BEGIN:VEVENT SUMMARY:Mechanical stabilization and positioning of CLIC quadrupoles with sub-nanometre resolution DTSTART;VALUE=DATE-TIME:20111124T131500Z DTEND;VALUE=DATE-TIME:20111124T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-160044@cern.ch DESCRIPTION:Abstract: To reach the required luminosity at the CLIC interac tion point\, about 4000 quadrupoles are needed to obtain a vertical beam s ize of 1 nm at the interaction point. The mechanical jitter of the quadrup ole magnets will result in an emittance growth. An active vibration isolat ion system is required to reduce vibrations from the ground and from exter nal forces to about 1.5 nm integrated root mean square (r.m.s.) vertical d isplacement at 1 Hz. A short overview of vibration damping and isolation s trategies will be presented as well as a comparison of existing systems. T he unprecedented resolution requirements and the instruments enabling thes e measurements will be discussed. The vibration sources from which the mag nets need to be isolated are characterised. The specificity of the require ments for isolation of particle accelerator components resulted in the dev elopment of a very stiff stabilization support at CERN. The active support can also reposition the quadrupole in between beam pulses with nanometre resolution. The conceptual design of the active stabilization and nano-pos itioning was validated in models and experimentally demonstrated on test b enches. The design choices and improvements for the mechanics\, the contro ller and electronics\, leading to the results achieved\, will be shown. Th e integration of the stabilisation system with other ground motion mitigat ion techniques has provided additional input for the stabilisation system. Finally\, the status and directions of future development work will be pr esented.\n \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=160044 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=160044 END:VEVENT BEGIN:VEVENT SUMMARY:From point cloud acquisition to 3D model - As Built and Reverse En gineering at CERN using 3D laser scanning technologies DTSTART;VALUE=DATE-TIME:20111129T131500Z DTEND;VALUE=DATE-TIME:20111129T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-162817@cern.ch DESCRIPTION:The laser scanning technologies have been developed for 15 yea r. These technologies are used in various domains\, such as justice\, medi cine\, archaeology\, architecture and also industry. In the last years\, m any improvements have been done on the instrumentation: more compact and a ccurate\, faster data acquisition etc. This seminar will present the stat e of the art in laser scanning technologies with their principles and asso ciated precisions ranging from some millimetres to several hundredths of a millimetre. This part will be followed by a presentation of the point clo ud data processing to obtain 3D models which can be imported in CAD system s and of the information that can be extracted from these models. It will be illustrated by examples based on tests and real case measurements done in the experimental areas in the last three years at CERN through a BE-AB P-SU/PH-DT collaborative work. The presentation will show how the benefit s of 3D Laser Scanning could be exploited in the future in a sharing of ta sks between the surveyor and the engineering and design offices.\n \n PL EASE NOTE UNUSUAL LOCATION AND DAY !\n\nhttp://indico.cern.ch/conferenceDi splay.py?confId=162817 LOCATION:CERN BE Auditorium Prevessin URL:http://indico.cern.ch/conferenceDisplay.py?confId=162817 END:VEVENT BEGIN:VEVENT SUMMARY:Special Seminar : Status of J-PARC Facilities after the Great Eart hquake of Japan DTSTART;VALUE=DATE-TIME:20120118T100000Z DTEND;VALUE=DATE-TIME:20120118T110000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-171356@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=171356 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=171356 END:VEVENT BEGIN:VEVENT SUMMARY:Future neutrino facilities: the neutrino factory DTSTART;VALUE=DATE-TIME:20120119T131500Z DTEND;VALUE=DATE-TIME:20120119T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-170535@cern.ch DESCRIPTION:The neutrino factory is one of the proposed design for a futur e intense neutrino beam facility. In its current layout\, a high-power pro ton beam impinges on a Hg jet target producing pions\, decaying in turn in to muons. In order to reduce the particle beam emittance\, the muon transv erse momentum is reduced through ionization cooling by a technically deman ding setup made of closely packed RF cavities alternated with absorbers. I n this talk I will present the motivation for building an intense neutrino beam and some of the proposed neutrino facilities design. I will discuss the challenges inherent to the cooling of muons\, possible optimization of the current baseline and the on-going R&D.\n\nhttp://indico.cern.ch/confe renceDisplay.py?confId=170535 LOCATION:CERN IT Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=170535 END:VEVENT BEGIN:VEVENT SUMMARY:A future CLIC e+e- collider - the challenge of building a detector DTSTART;VALUE=DATE-TIME:20120126T131500Z DTEND;VALUE=DATE-TIME:20120126T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-173006@cern.ch DESCRIPTION:A multi-TeV electron-positron collider\, such as CLIC\, is one of the most attractive options for the future of accelerator-based high e nergy physics. This seminar will briefly\, and in simple terms\, point out the motivation for building such a collider. The emphasis of the talk wil l be on the conceptual design of the detectors\, needed to perform measure ments at CLIC with the required accuracy. Some of the technological challe nges will be explained in detail\, using a few key examples.\n\nhttp://ind ico.cern.ch/conferenceDisplay.py?confId=173006 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=173006 END:VEVENT BEGIN:VEVENT SUMMARY:Cooling of electrically insulated high voltage electrodes down to 30 mK DTSTART;VALUE=DATE-TIME:20120223T131500Z DTEND;VALUE=DATE-TIME:20120223T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-175635@cern.ch DESCRIPTION:The Antimatter Experiment: Gravity\, Interferometry\, Spectros copy (AEGIS) at CERN is an experiment investigating the influence of earth ’s gravitational force upon antimatter. To perform precise measurements the antimatter needs to be cooled to a temperature of 100 mK. This will be done in a Penning trap\, formed by several electrodes\, which are charged with several kV and have to be individually electrically insulated. The t rap is thermally linked to a mixing chamber of a 3He-4He dilution refriger ator. The thermal boundary resistance of different thermal link designs wi ll be discussed. In both designs\, homemade heat exchangers are integrated to transfer the heat to the cold helium. These heat exchangers are based on sintered structures to increase the heat transferring surface and to ov ercome the significant influence of the thermal resistance (Kapitza resist ance). The heat exchangers are optimized concerning the adherence of the s inter to the substrate and its sinter height\, e.g. its thermal penetratio n length. The performance of the optimized heat exchangers will be present ed.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=175635 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=175635 END:VEVENT BEGIN:VEVENT SUMMARY:Status of UA9\, the crystal collimation experiment at CERN DTSTART;VALUE=DATE-TIME:20120308T131500Z DTEND;VALUE=DATE-TIME:20120308T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-176524@cern.ch DESCRIPTION:The UA9 experiment has been operated for some years in the CER N-SPS in view of investigating the features of the halo collimation assist ed by bent crystals in a two stages collimation system. Silicon crystals a few mm long have been selected for an optimal channeling efficiency. The crystal orientation was easily optimized and the collimation process stead ily achieved with the installed goniometer having an angular reproducibili ty of about ± 10 µrad. The loss profile in the area of the crystal-colli mator setup was strongly reduced by about an order of magnitude\, whilst t he off-momentum particle population resulting from the interaction of the primary halo with the bent crystal was reduced by a similar amount. The me asured loss was consistent with simulations and with single pass data coll ected in the North Area of the SPS. In recent runs at high-intensity and h igh diffusion halo speed\, a reduced loss regime was observed also far dow nstream of the crystal location. The accumulated observations strongly sup port extending the UA9 tests to the CERN-LHC collimation system.\n\nhttp:/ /indico.cern.ch/conferenceDisplay.py?confId=176524 LOCATION:CERN BE Auditorium Prevessin URL:http://indico.cern.ch/conferenceDisplay.py?confId=176524 END:VEVENT BEGIN:VEVENT SUMMARY:Utilization of Robot and Remote-Controlled Machine Technology for the Great Eastern Japan Earthquake and Accident of the Fukushima Daiichi N uclear Power Plant DTSTART;VALUE=DATE-TIME:20120329T090000Z DTEND;VALUE=DATE-TIME:20120329T100000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-182170@cern.ch DESCRIPTION:The Great Eastern Japan Earthquake and Tsunami occurred in Mar ch 11\, 2011\, and the accident of Fukushima Daiichi Nuclear Power Plant o ccurred due to the earthquake and the tsunami. There have been lots of nee ds of remote-controlled machine technology including robot technology (RT) for the response of the disaster and the accident. In this presentation\, it is introduced how these technology has been utilized in the emergent s ituation so far and will be expected as the middle-range and long-range me asures towards decommission and future preparation against possible disast ers and accidents.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=18 2170 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=182170 END:VEVENT BEGIN:VEVENT SUMMARY:Accelerators and Medicine DTSTART;VALUE=DATE-TIME:20120419T121500Z DTEND;VALUE=DATE-TIME:20120419T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-183874@cern.ch DESCRIPTION:About 50% of particle accelerators running in the world today are used for medical applications.\nThe main areas of use are: radioisotop e production\, conventional radiotherapy with electron and photon beams\, oncological hadron-therapy.\nStandard linear accelerators are also used fo r the IORT (Intra Operative Radiation Therapy) technique\, which is receiv ing a growing interest in radiotherapy: a high dose of ionizing radiation is delivered directly to the tumor location and immediately after tumor ab lation\, as part of the surgical operation.\nFor all these medical applica tions\, substantial innovation can come from more compact and performing e quipments that can take advantage of the increase of RF operating frequenc y of the linacs with respect to the standard products.\nThe activity of th e ADAM Company is mainly focused on the development of innovative compact linear accelerators and detectors for medical applications. The results ac hieved in the last four years by the ADAM team and the research activities planned for the future will be shown.\n\nhttp://indico.cern.ch/conference Display.py?confId=183874 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=183874 END:VEVENT BEGIN:VEVENT SUMMARY:The LHC Transverse coupled-Bunch Instability DTSTART;VALUE=DATE-TIME:20120426T121500Z DTEND;VALUE=DATE-TIME:20120426T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-187663@cern.ch DESCRIPTION:We address here the problem of the transverse coupled-bunch in stabilities created by the Large Hadron Collider (LHC) beam-coupling imped ance\, that can possibly limit the machine operation. A rather complete vi sion of the problem is proposed\, going from the calculation of the impeda nces and wake functions of individual machine elements\, to the beam dynam ics study. New results are obtained in the theory of the beam-coupling imp edance for an axisymmetric two-dimensional structure\, generalizing Zotter 's theories\, and a new general theory is derived for the impedance of an infinite flat two-dimensional structure. Then\, a new approach is found to compute the wake functions from such analytically obtained beam-coupling impedances\, overcoming limitations that could be met with standard discre te Fourier transform procedures. Those results are used to obtain an imped ance and wake function model of the LHC\, based on the (resistive-) wall i mpedances of various contributors (collimators\, beam screens and vacuum p ipe) and additional estimations of the geometrical impedance contributions . Finally\, the existing code HEADTAIL is improved to make possible the si mulation of multibunch trains. All those theories and tools are used to ob tain new results concerning the LHC transverse coupled-bunch instabilities \, comparing them with actual measurements in the LHC\, providing a very g ood agreement at injection energy and a correct order of magnitude at 3.5 TeV/c.\n\nATS Seminars\nOrganisers: H. Burkhardt (BE)\, S. Sgobba (EN)\, G . deRijk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=187663 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=187663 END:VEVENT BEGIN:VEVENT SUMMARY:A&T Sector Oral Papers to be presented at the conference IPAC'12 DTSTART;VALUE=DATE-TIME:20120515T080000Z DTEND;VALUE=DATE-TIME:20120515T130000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-190906@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=190906 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=190906 END:VEVENT BEGIN:VEVENT SUMMARY:3D & the BBQ-Observing beam oscillations with sub-micrometre ampli tudes DTSTART;VALUE=DATE-TIME:20120607T121500Z DTEND;VALUE=DATE-TIME:20120607T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-194985@cern.ch DESCRIPTION:LHC beam instrumentation has made an important contribution to the success of the initial LHC commissioning and its subsequent efficient operation\; in line with the saying that "an accelerator can only be as g ood as its diagnostics". The new challenges imposed by the LHC machine req uired important advances to be made in several areas of beam instrumentati on. This could only be fully achieved through collaboration\, using the kn owledge and experience of scientists and engineers from many different lab oratories. One such challenge was the LHC tune measurement system\, requir ing the observation of beam oscillations with micrometre amplitudes. This resulted in the development of a technique called Direct Diode Detection ( 3D)\, which recently earned the Faraday Cup Award at the US Beam Instrumen tation Workshop (BIW12) as "an innovative beam diagnostic instrument of pr oven workability". This seminar will describe the motivation and the histo ry behind this development\, from the early adventures of 3D prototyping t hrough collaboration with Brookhaven National Laboratory to its final impl ementation here at CERN as the Base-Band Tune (BBQ) systems. Some of the e arly tests of the 3D technique involved recording signals of beam motion a s sound files and a few of these will be played during the presentation to demonstrate another angle for understanding particle beam dynamics.\n\nAT S Seminars\nOrganisers: H. Burkhardt (BE)\, S. Sgobba (EN)\, G. deRijk (TE )\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=194985 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=194985 END:VEVENT BEGIN:VEVENT SUMMARY:The neutron beam and the associated physics program of the CERN n_ TOF facility DTSTART;VALUE=DATE-TIME:20120830T121500Z DTEND;VALUE=DATE-TIME:20120830T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-204197@cern.ch DESCRIPTION:Neutrons of a wide energy range are used for research in basic physics and technological applications. At CERN\, the neutron time-of-fli ght n_TOF facility is operating since 2001 using a high intensity pulsed w hite neutron beam produced by spallation reactions induced by 20 GeV/c pro tons impinging on a massive lead target. In these eleven years of operatio n n_TOF has become a world leading facility in measuring neutron-induced r eactions of importance in fields such as basic physics\, innovative nuclea r energy technologies (Gen-IV and ADS reactors)\, stellar nucleosynthesis and the s-process\, detector testing\, etc. Following a brief description of the the n_TOF facility\, I will discuss the physics cases that we have studied in the last three years\, with emphasis in those that have been pi oneering or particularly challenging. Last\, I will introduce the future n eutron beam line that shall be constructed during the 2013-2014 shutdown L S1.\n\n\nATS Seminars\nOrganisers: H. Burkhardt (BE)\, S. Sgobba (EN)\, G. deRijk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=204197 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=204197 END:VEVENT BEGIN:VEVENT SUMMARY:The ALICE Energy Recovery Linac Program at ASTeC DTSTART;VALUE=DATE-TIME:20120905T080000Z DTEND;VALUE=DATE-TIME:20120905T090000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-205857@cern.ch DESCRIPTION:The presentation summarises the ALICE Energy Recovery Linac te st facility and its experimental program. \n\n\nATS Seminars \nOrganisers: H. Burkhardt (BE)\, S. Sgobba (EN)\, G. deRijk (TE)\n\nhttp://indico.cern .ch/conferenceDisplay.py?confId=205857 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=205857 END:VEVENT BEGIN:VEVENT SUMMARY:Applied Superconductivity Conference (ASC) Oral presentations DTSTART;VALUE=DATE-TIME:20121002T070000Z DTEND;VALUE=DATE-TIME:20121002T110000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-210512@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=210512 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=210512 END:VEVENT BEGIN:VEVENT SUMMARY:Experience of High Intensity Operation in the Brookhaven AGS DTSTART;VALUE=DATE-TIME:20121018T121500Z DTEND;VALUE=DATE-TIME:20121018T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-212203@cern.ch DESCRIPTION:The Brookhaven AGS provided 24GeV protons for various high ene rgy physics experiments. Up to 7*10^13 protons are slowly extracted. There were significant space charge effects at the injection of AGS and its Bo oster. Several methods were used to mitigate the space charge effect\, suc h as tune control\, raise AGS injection energy\, and reducing peak current . The beam losses along the ramp was also reduced to achieve high inten sity beam.\n\nCoffee / tea will be served after the seminar.\n\nATS Semina rs \nOrganisers: H. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nh ttp://indico.cern.ch/conferenceDisplay.py?confId=212203 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=212203 END:VEVENT BEGIN:VEVENT SUMMARY:Heat transfer between the superconducting cables of the LHC accele rator magnets and the superfluid helium bath DTSTART;VALUE=DATE-TIME:20121101T131500Z DTEND;VALUE=DATE-TIME:20121101T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-214854@cern.ch DESCRIPTION:This seminar will address the heat transfer through the electr ical insulation of Nb-Ti superconducting cables cooled by superfluid heli um. The cable insulation constitutes the most severe barrier for heat extr action from the LHC superconducting magnets. An experimental study was car ried out to characterize the thermal behavior of the present LHC insulatio n. We developed a new thermally enhanced insulation scheme based on an inc reased porosity to superfluid helium. It aims at withstanding large heat loads\, as needed for the High Luminosity LHC upgrade (HL-LHC). Experiment al measurements of the new insulation showed a major improvement of heat e xtraction compared to the present state-of-the-art used in the LHC. We dev eloped a theoretical heat transfer model quantitatively explaining the exp erimental results of the LHC and HL-LHC insulations. We identified the he at extraction mechanisms\, mainly occurring through superfluid helium mic ro-channels whose average dimension was estimated to be of few µm. Howeve r\, since the classical laws describing the dynamic regimes of pressurized superfluid helium have not been demonstrated in such small dimensions\, we developed a new experimental program to investigate He II heat transpor t through micro-channels. We measured the classical laminar and turbulent regimes\, thus showing the validity of such laws down to a channel depth o f at least 16 µm. Finally\, the outcome of these studies allowed to deter mine the quench limit of the Nb-Ti magnets for the LHC and its future upgr ades. \n\n\nCoffee / tea will be served after the seminar.\n\nATS Seminars Organisers: \nH. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhtt p://indico.cern.ch/conferenceDisplay.py?confId=214854 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=214854 END:VEVENT BEGIN:VEVENT SUMMARY:Overview of Additive Manufacturing and Materials DTSTART;VALUE=DATE-TIME:20121129T131500Z DTEND;VALUE=DATE-TIME:20121129T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-214588@cern.ch DESCRIPTION:This presentation will give general overview of Additive Manuf acturing (AM)\, covering the basic terminology you will hear when discussi ng prototype or production parts. The technology is developing from its ro ots as a prototyping technology used for R&D into high-end production proc ess used in medical\, automotive and aerospace applications in titanium\, cobalt chrome\, stainless steel\, etc. We will show how additive manufactu ring is breaking in to two discrete sectors – one for prototype manufact ures using polymers (including PEEK) and one for end use parts in metals u sing alloyed powders. We will look at the principal types of technology th at are available to produce components in metals – based on lasers or el ectron beam welding – and give an overview advantages\, disadvantages\, expected tolerances and build envelopes. We will finish with a look at th e mechanical properties of the finished products. \n\n\nCoffee / tea will be served after the seminar.\n\nATS Seminars Organisers: \nH. Burkhardt (B E)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferenceD isplay.py?confId=214588 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=214588 END:VEVENT BEGIN:VEVENT SUMMARY:Status of ITER Magnet and Conductor Production DTSTART;VALUE=DATE-TIME:20121206T131500Z DTEND;VALUE=DATE-TIME:20121206T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-219141@cern.ch DESCRIPTION:Following the LHC\, ITER has become the largest project in app lied superconductivity. In addition to its technical complexity\, ITER is also a management challenge as it relies on an unprecedented collaboration of 7 partners\, representing more than half of the world population. A st atus of the ITER construction will be presented\, with an emphasis on the magnet and conductors\, which are the first ITER components to be mass pro duced worlddwide. An update will also be provided on the qualification of the conductors for the Central Solenoid\, a Nb3Sn coil that will be cycled tens of thousands of times to high field and current\, way beyond anythin g a magnet of this kind has ever experienced.\n\n\nCoffee / tea will be se rved after the seminar in the 'Pas Perdus'\n\nATS Seminars Organisers: \nH . Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern. ch/conferenceDisplay.py?confId=219141 LOCATION:CERN Main Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=219141 END:VEVENT BEGIN:VEVENT SUMMARY:Updated Risk Analysis of the LHC Cryogenic and Helium Distribution System DTSTART;VALUE=DATE-TIME:20121213T131500Z DTEND;VALUE=DATE-TIME:20121213T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-221585@cern.ch DESCRIPTION:Abstract:\n\nThe Preliminary Risk Analysis (PRA) of the Large Hadron Collider cryogenic system\, performed in 1998\, was aimed at the i dentification of all the risks for personnel\, equipment or environment ca used by the failures that might accidentally occur in any phase of the mac hine operation\, and that could not be eliminated by design. The risk anal ysis was performed during a design and an early construction phase of the machine. Therefore\, after the collider commissioning experience\, especia lly due to the 080919 incident in the LHC sector 3-4\, PRA had to be revis ed and updated. We give an overview of the redefined or updated data relev ant for a new Most Credible Incident (MCI) formulation. The criteria of cr yogenic failure categorization that take into the account their occurrence and severity are discussed. The methodology of MCI derivation based on FM ECA (Failure Modes\, Effects and Criticality Analysis) and RAMI (Reliabili ty\, Availability\, Maintainability and Inspectability) tools is presented and discussed. Changes in the LHC cryogenic system construction and explo itation that stem from the updated risk analysis of the system will be sho wn.\n\n\nCoffee / tea will be served after the seminar \n\nATS Seminars Or ganisers: \nH. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp:/ /indico.cern.ch/conferenceDisplay.py?confId=221585 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=221585 END:VEVENT BEGIN:VEVENT SUMMARY:Surface Flashover of Insulators in Vacuum: An Overview DTSTART;VALUE=DATE-TIME:20130123T100000Z DTEND;VALUE=DATE-TIME:20130123T113000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-215624@cern.ch DESCRIPTION:The important role of surface charging of insulators\, under h igh voltage stress\, will be first discussed followed by strategies to ach ieve the highest reported surface flashover fields using high resistivity Cr2O3 surface coating. Novel insulator designs to mitigate insulator surfa ce charging and thus achieving high surface flashover fields will be prese nted. Development of a non-destructive technique of measuring avalanche pr ocesses that are precursors to surface breakdown\, providing deep understa nding of the physics of breakdown phenomena in semiconductor-dielectric sy stems\, will also be presented.\n\n\nATS Seminars Organisers: \nH. Burkhar dt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/confer enceDisplay.py?confId=215624 LOCATION:CERN Salle Anderson URL:http://indico.cern.ch/conferenceDisplay.py?confId=215624 END:VEVENT BEGIN:VEVENT SUMMARY:nuSTORM\, Neutrinos from STORed Muons DTSTART;VALUE=DATE-TIME:20130124T131500Z DTEND;VALUE=DATE-TIME:20130124T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-225081@cern.ch DESCRIPTION:JOINT SEMINAR ATS and PH\n\nAbstract : \n\nThe results of LSND and MiniBooNE\, along with the recent papers on a possible reactor neutri no flux anomaly\, give tantalizing hints of new physics. Models beyond the nuSM have been developed to explain these results and involve one or more additional neutrinos that are non- interacting or “sterile." Neutrino b eams produced from the decay of muons in a racetrack-like decay ring provi de a powerful way to study this potential new physics. In this talk\, I wi ll describe the facility\, nuSTORM\, and an appropriate far detector for n eutrino oscillation searches at short baseline. I will present sensitivity plots that indicated that this experimental approach can provide well ove r 5 sigma confirmation or rejection of the LSND/MinBooNE results. In addit ion I will explain how the facility can be used to make neutrino interacti on cross section measurements important to the next generation of long-bas eline neutrino oscillation experiments and\, in general\, add significantl y to the study of neutrino interactions. The unique Neutrino beam availabl e at the nuSTORM facility has the potential to be transformational in our approach to Neutrino interaction physics\, offering a “Neutrino light so urce” to physicists from a number of disciplines.\n\n\nCoffee / tea will be served after the seminar in the 'Pas Perdus'\n\n\nATS Seminars Organis ers: \nH. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indi co.cern.ch/conferenceDisplay.py?confId=225081 LOCATION:CERN Main Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=225081 END:VEVENT BEGIN:VEVENT SUMMARY:IFMIF\, the International Fusion Materials Irradiation Facility an d its 2 x 5 MW superconducting deuteron Linacs DTSTART;VALUE=DATE-TIME:20130131T131500Z DTEND;VALUE=DATE-TIME:20130131T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-226798@cern.ch DESCRIPTION:Abstract:\n\nThe world fusion programme needs within next two decades the results of two large facilities in the race towards commercial fusion power plants. ITER\, presently under construction in the South of France will teach us how to control stable deuterium-tritium nuclear fusio n reactions. In turn\, IFMIF will allow the qualification and characteriza tion of the materials for the first wall of the reactor vessel. The first wall\, a combination of layers of different specialised materials that aim s to maximise the conversion of neutrons into thermal energy and breed tri tium to fuel the fusion reactions\, must be capable to withstand structura l damage of up to 150 displacements per atom in the metal lattice of purpo sely designed RAFM (Reduced Activation Ferritic-Martensitic) steels. The 1 4.1 MeV energy of fusion neutrons makes existing neutron sources (namely f ission reactors and spallation facilities) be not fully suitable to reprod uce experimentally the degradation of mechanical properties of the candida te materials. IFMIF will generate a neutron flux of 1018 /m2•s with a br oad energy peak at around 14 MeV through (d\,Li)n stripping reactions. Two deuteron accelerators with 125 mA\, 40 MeV beams and a footprint of 20 cm x 5 cm will impact a liquid Lithium screen flowing at 15 m/s. The neutron s generated will irradiate test modules at different levels of neutron flu xes. Of particular relevance will be the 0.5 litre volume of the High Flux Test Module where miniaturised specimens\, presently under qualification\ , will be tested at various controlled temperatures to reach within a few years the same conditions as the first wall of a commercial reactor vessel . \nIFMIF\, presently in its Engineering Validation and Engineering Design Activities (EVEDA) phase\, is overcoming the technical challenges with th ree main prototyping activities:\n1) the world largest liquid Lithium loop \, presently under operation in Oarai (Japan)\,\n2) a full scale prototype of the High Flux Test Module and its cooling loop to independently contro l the testing temperature in Karlsruhe (Germany) and\n3) a deuteron Linac at 125 mA and 9 MeV\, whose installation will start in March 2013 in Rokka sho (Japan).\n \n\n\nCoffee / tea will be served after the seminar in the 'Pas Perdus'\n\n\n\nATS Seminars Organisers: \nH. Burkhardt (BE)\, S. Sgob ba (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?co nfId=226798 LOCATION:CERN Main Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=226798 END:VEVENT BEGIN:VEVENT SUMMARY:The Maintenance Management Project (MMP) DTSTART;VALUE=DATE-TIME:20130207T131500Z DTEND;VALUE=DATE-TIME:20130207T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-230429@cern.ch DESCRIPTION:CERN has now entered a mode of continuous operation of the LHC \, of its injectors and of the systems that are supporting their operation . Getting maintenance right is now primordial for reaching even higher ava ilabilities and the best possible quality of service. There is today a nee d to deploy new strategies to the equipment groups and to further develop the Computerized Maintenance Management System (CMMS) modules that are in use at CERN. The seminar will outline the different efforts\, assessments and audits that have been carried out within the Maintenance Management Pr oject (MMP) across several departments and which resulted in the creation of the Maintenance Framework Implementation Office (MFIO). The concept\, o rganization and tasks of the MFIO will be presented and explained in detai l along with the latest developments of the CMMS tools.\n\nCoffee / tea wi ll be served after the seminar \n\nATS Seminars Organisers: \nH. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferen ceDisplay.py?confId=230429 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=230429 END:VEVENT BEGIN:VEVENT SUMMARY:COMBINED SEMINAR: 1/ Metamaterials: From control of waves to diffu sion processes 2/High frequency homogenization: Connecting the Microstruc ture to the Macroscale DTSTART;VALUE=DATE-TIME:20130228T131500Z DTEND;VALUE=DATE-TIME:20130228T151500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-234803@cern.ch DESCRIPTION:JOINT SEMINAR ATS and PH\n\nCOMBINED SEMINAR:\n\n1/ Metamateri als: From control of waves to diffusion processes \nDr. Sebastien Guenneau \, Aix-Marseille Université\, CNRS\, Ecole Centrale Marseille\, Institut Fresnel \n\n2/ High frequency homogenization: Connecting the Microstructur e to the Macroscale\nProf. Richard Craster\, Imperial College\, London\n\n \n\nCoffee / tea will be served after the seminar\n\nATS Seminars Organise rs: \nH. Burkhardt (BE)\, S. Sgobba (EN)\, G. De Rijk (TE)\n\nhttp://indic o.cern.ch/conferenceDisplay.py?confId=234803 LOCATION:CERN BE Auditorium Prevessin URL:http://indico.cern.ch/conferenceDisplay.py?confId=234803 END:VEVENT BEGIN:VEVENT SUMMARY:An Overview of HiRadMat Tests on Collimators Materials DTSTART;VALUE=DATE-TIME:20130314T131500Z DTEND;VALUE=DATE-TIME:20130314T141500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-240782@cern.ch DESCRIPTION:Tests on materials already used or under development for beam intercepting devices were successfully completed by early October 2012 in the HiRadMat facility. A dedicated sample holder hosting six different mat erials was specifically designed and constructed for this project. Experim ental data were acquired\, mostly in real time\, relying on extensive emba rked instrumentation (strain gauges and temperature sensors) and on remot e acquisition devices (laser Doppler vibrometer and high speed camera). Th e digital acquisition system had dynamic ranges sufficient to acquire the very fast and intense shockwaves generated by the impact. The high-speed v ideo camera allowed capturing the material fragments projected away from i mpacted specimens. \nPreliminary results of this comprehensive\, first- of-its-kind experiment will be presented. In particular the well documente d examples of beam damage on materials can be useful viewing for machine o perators.\nIn depth post-irradiation analyses foreseen once the specimens have reached a sufficiently low level of activation will also be briefly o utlined. \n\n\nCoffee / tea will be served after the seminar \n\nATS Sem inars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\, G. De Rijk (TE)\n\nh ttp://indico.cern.ch/conferenceDisplay.py?confId=240782 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=240782 END:VEVENT BEGIN:VEVENT SUMMARY:Fukushima-Daiichi NPP accident - Internal & external exposure of F ukushima citizens DTSTART;VALUE=DATE-TIME:20130404T121500Z DTEND;VALUE=DATE-TIME:20130404T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-241525@cern.ch DESCRIPTION:The Fukushima Daiichi NPP accident of March 2011 heavily cont aminated the Fukushima soils by radioactive cesium. \nPast experience show s that people living in such regions become internally contaminated due to cesium ingestion\, and hence we must take all necessary measures to reduc e the risks to people.\nIn order to clarify the situation\, I proposed in the summer of 2011 to measure the cesium concentrations of school lunch. T he project is now funded by the ministry of education\, and has shown that school lunch served in Fukushima (and elsewhere) is practically cesium fr ee.\nI am also helping several hospitals in Fukushima in assessing the 134 Cs & 137Cs body burdens with whole-body counters. We have so far measured some 50\,000 people\, and have shown (quite surprisingly) that >99% of Fuk ushima citizens have no detectable-level of radioactive cesium in their bo dies.\nIn the seminar\, I will briefly discuss the sequence of events foll owing the earthquake\, various monitoring results\, food screening procedu res and results\, followed by a preliminary estimate of radiation doses to the public.\n\n\n\nCoffee / tea will be served after the seminar \n\nATS Seminars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\, G. De Rijk (TE)\n \nhttp://indico.cern.ch/conferenceDisplay.py?confId=241525 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=241525 END:VEVENT BEGIN:VEVENT SUMMARY:A Roadmap to the Realisation of Fusion Energy DTSTART;VALUE=DATE-TIME:20130411T121500Z DTEND;VALUE=DATE-TIME:20130411T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-242826@cern.ch DESCRIPTION:To provide fusion in the time pace set by the boundary conditi ons of population growth\, environment aggression\, fuel fossil availabili ty and technology developments an ambitious\, yet realistic roadmap toward s the realization of a demonstration of a thermonuclear fusion power plant (DEMO) for electricity production by 2050[1] has been established.\nThe r oadmap has been developed within a goal-oriented approach articulated in e ight different Missions. The critical aspects for reactor application\, th e risks and risk mitigation strategies\, the level of readiness now and af ter ITER and the gaps in the programme have been examined with involvement of experts from the ITER International Organization\, Fusion for Energy\, EFDA Close Support Unites and EFDA Associates. High-level work packages f or the roadmap implementation have been prepared and the resources evaluat ed.\nITER will break new ground in fusion science and the European laborat ories shall focus their effort on its exploitation. Additional challenges that are key to be addressed include a reliable solution for the heat exha ust\, a dedicated neutron source for irradiation studies and the tritium s elf-sufficiency technology as DEMO blanket selection will face new constra ints on coolant and breeder arising from the choice of an efficient Balanc e of Plant.\nThe evolution of the programme requires that industry progres sively shifts its role from that of provider of high-tech components to th at of driver of fusion development.\nEurope should seek all the opportunit ies for international collaborations and gain benefits from the participat ion in the design\, construction and operation of other large fusion facil ities.\n\n[1] F. Romanelli\, P. Barabaschi\, D. Borba\, G. Federici\, L. H orton\, R. Neu\, D. Stork\, H. Zohm A roadmap to the realization of Fusion Energy (2012) \n\nhttp://www.efda.org/wpcms/wp-content/uploads/2013/01/JG 12.356-web.pdf?5c1bd2\n\n\n\n\nCoffee / tea will be served after the semin ar \n\nATS Seminars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=242826 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=242826 END:VEVENT BEGIN:VEVENT SUMMARY:Summary of the 2013 workshop on beam-beam effects in hadron collid ers DTSTART;VALUE=DATE-TIME:20130415T121500Z DTEND;VALUE=DATE-TIME:20130415T131500Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-244746@cern.ch DESCRIPTION:An ICFA workshop on 'Beam-Beam Effects in Hadron Colliders'was held at CERN from 18.3. - 22.3. 2013.\nIt has gathered 60 international experts on this topic to discuss recent experimental and theoretical progr ess on this topic and the experience relevant for the LHC and future proje cts. The main outcome of the workshop\, highlights and recommendations wil l be presented in this seminar.\n\n\n\nCoffee / tea will be served after t he seminar \n\nATS Seminars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\ , G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=244 746 LOCATION:CERN BE Auditorium Meyrin URL:http://indico.cern.ch/conferenceDisplay.py?confId=244746 END:VEVENT BEGIN:VEVENT SUMMARY:Overview of the LHeC Design Study at CERN (invited oral for IPAC) DTSTART;VALUE=DATE-TIME:20130507T130000Z DTEND;VALUE=DATE-TIME:20130507T140000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-251012@cern.ch DESCRIPTION:The LHeC is a potential future lepton-hadron collider project at CERN based on the existing LHC infrastructure. The presentation highlig hts the main results of the recently published conceptual design report\, including the findings of an international review committee that evaluated it. The presentation outlines the planed future studies and R&D activitie s for the next years.\n\n\n\nCoffee / tea will be served after the seminar \n\nATS Seminars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\, G. De Ri jk (TE)\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=251012 LOCATION:CERN Kjell Johnsen Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=251012 END:VEVENT BEGIN:VEVENT SUMMARY:ADS Fission in a Molten Salt Core: Destroy Transuranics in Spent N uclear Fuel\, Close the Nuclear Fuel Cycle DTSTART;VALUE=DATE-TIME:20130524T123000Z DTEND;VALUE=DATE-TIME:20130524T133000Z DTSTAMP;VALUE=DATE-TIME:20130520T005212Z UID:indico-event-252575@cern.ch DESCRIPTION:The transuranic elements in spent nuclear fuel are the most en during hazard of nuclear power. They have immense radiotoxicity\, enough to jeopardize all life on Earth if they entered the biosphere\, they have half-lives of hundreds of thousands of years\, and each power reactor prod uces half a ton of transuranics per year.\nInnovations in pyroprocessing\, accelerator physics\, core neutronics\, and actinide safeguards make it p ossible to make accelerator-driven subcritical fission in a molten salt co re (ADSMS) with which the transuranics can be safely destroyed by fission at the same rate they are produced in conventional power reactors. In ADS MS intense proton beams are produced by strong-focusing cyclotrons and del ivered into a molten salt core. The core operates with a criticality of 0 .96 – the proton driver must supply 4% of the neutrons needed to sustain fission. The protons produce fast neutrons in the core by spallation and drive fission. The core is designed with the ultra-fast neutronics neede d to fission the transuranics\, and no failure mode can induce criticality .\nThe ADSMS technology will be described. Applications of the accelerato r technology for proton beam gantries for cancer therapy and for neutron d amage studies will be presented.\n\n\nCoffee / tea will be served after th e seminar in the 'Pas Perdus' \n\nATS Seminars Organisers: \nH. Burkhardt (BE) T. Stora (EN)\, G. De Rijk (TE)\n\nhttp://indico.cern.ch/conferenceD isplay.py?confId=252575 LOCATION:CERN Main Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=252575 END:VEVENT END:VCALENDAR