ISOLDE Technical Coordination Meeting
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Europe/Zurich
508/1-001 (CERN)
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General news, agenda review, minutes approvalSpeakers: Erwin Siesling (CERN), Joachim Vollaire (CERN)
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Operation Report - REX/HIE ISOLDE updateSpeakers: Alberto Rodriguez (CERN), Eleftherios Fadakis (CERN), Emiliano Piselli (CERN), Erwin Siesling (CERN), Joachim Vollaire (CERN), Miguel Luis Lozano Benito (CERN), Simon Mataguez (CERN)
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RILIS reportSpeakers: Anjali Ajayakumar, Cyril Bernerd (CERN), Joachim Vollaire (CERN), Jordan Ray Reilly (The University of Manchester (GB)), Katerina Chrysalidis (CERN), Manikanta Elle (KU Leuven (BE)), Reinhard Heinke (The University of Manchester (GB)), Sebastian Rothe (CERN)
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MEDICIS & Building 179Speakers: Charlotte Duchemin (CERN SY/STI/RBS), Edgars Mamis, Joachim Vollaire (CERN), Laura Lambert (CERN), Manikanta Elle (KU Leuven (BE)), Matthieu Deschamps, Patricija Kalnina (University of Latvia (LV)), Ralf Erik Rossel (CERN)
Last Week
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- Yb-175 collection
- Finished on monday morning with 92 MBq shipped out after radiochemistry
- Tb-155 development run from 15th september
- Target failed due to ion source cathode-anode contact
- Cu-67 sample collected at MEDICIS passed to ISOLDE (L. Fraile)
- Yb-175 collection
This Week
- Tb-149 collection and measurements by NPL
- Preconditioning and stable beam tests of the charge in the VD-5 target #918M
- Irradiation of TaC+C pellet target from 24-25th morning
- Fix of camera in Sector 6 today 15:30
Next week
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- Tb-155 development run
- Continued from Tb-149
- Sm-153 from external source
- Source from POLATOM
- Loading and separation from 30th September
- Tb-155 development run
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5
Targets, Schedule and PhysicsSpeakers: Hanne Heylen (CERN), Isabel Frank (CERN), Matthias Alexander Grasser, Simon Thomas Stegemann (CERN)
Physics
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On GPS, ¹³⁵Cs beams were mass-separated from an external source, since a previous attempt had shown that proton-induced production with an ISOLDE target was not successful. The goal was to produce a sample for use at the n_TOF facility to study the astrophysical s-process. An acceptable amount of atoms was collected in the sample for the subsequent n_TOF-near experiment, which is preliminarily foreseen for early 2026.
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On HRS, neutron-deficient indium beams were delivered to the CRIS experiment to perform laser spectroscopy and study nuclear structure around the double-magic ¹⁰⁰Sn region. This was the fourth experiment in a campaign focused on this part of the nuclear chart. Since the yields were unfortunately about a factor of ten lower than requested, the most exotic isotope, ⁹⁹In, was out of reach. However, a reasonable amount of statistics was collected for ¹⁰⁰In, helped at least in part by the higher intensity available over the weekend. The run is still ongoing, and the team will also study a few less exotic isotopes that were missing in the chain. In addition, they have commissioned a new decay station at CRIS, which allows the collection of selective isomer and ground-state decay data. Using lasers to choose the isomer or ground state of interest, they can either record the corresponding decay or, conversely, separate ground states and isomers in the hyperfine spectra by selecting the decay specific to that state.
Schedule
- IBDRS, SCE would like to access the hill (during a GPS run and, if possible, during a time period where beam intensity is expected to be low): 13/10.
- Installation of stripping foils: Friday 3rd of Oct
- Intervention EBIS cathode: Friday 3rd of Oct
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6
Hall activities / Mechanical workshop requestsSpeaker: Oscar Fjeld (CERN)
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Safety, AOB, visitsSpeakers: Alexander Schmidt, Alexandre Dorsival (CERN), Elodie Aubert (CERN), Hanne Heylen (CERN), Line Le, Melania Averna (CERN), Mia Au (CERN), Nadine Conan (CERN), Oscar Fjeld (CERN), Simon Mataguez (CERN)
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