ISOLDE Technical Coordination Meeting

Tuesday 30 Sept 2025, 14:00 → 15:00 Europe/Zurich

508/1-001 (CERN)

14:00 → 14:05 General news, agenda review, minutes approval

Speakers: Erwin Siesling (CERN), Joachim Vollaire (CERN)

minutes_2025_23_09_Draft.docx

minutes_2025_23_09_Draft.pdf

14:05 → 14:20 Operation Report - REX/HIE ISOLDE update

Speakers: Alberto Rodriguez (CERN), Eleftherios Fadakis (CERN), Emiliano Piselli (CERN), Erwin Siesling (CERN), Joachim Vollaire (CERN), Miguel Luis Lozano Benito (CERN), Simon Mataguez (CERN)

ISOLDE_W39.docx

ISOLDE_W39.pdf

14:20 → 14:30 RILIS report

Speakers: 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)

14:30 → 14:40 MEDICIS & Building 179

Speakers: 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

• • Target #918M VD-5 TaC - run Tb-149 - S. Collins from NPL (UK)
    • Followed by Tb-155 over week-end → 12 MBq measured
    • Molecular ion beams
    • Tb-149 liquid, Tb-155 foil meausred by RP-CS this morning for shiping to NPL
  • Change cartdrige for the water cooling - too high cooling water conductivity

 

This Week

• Sm-153 importation received yesterday morning - 1st importation from NCBJ-Polatom neutron activation.
  • Transfered done yesterday afternoon but target 706M had a open circuit.
  • 705M repaired by Bernard and source transfer
  • 706M to be checked if can be repaired as well
  • A 2nd sample for L. Fraile (Physics measurements)
• Possible irradiation on friday 03.10 (few hours)

 

Next week

• • Irradiation of ThC on wednesday-thursday 08-09.10
  • Irradiation and Tm-165 (1 day half-life) run for Orleans and DTU
    • 09-10th October 
    • Will aim for no restriction on ppp
    • Ta foil target
  • Reception of 2nd Sm-153 from POLATOM

14:40 → 14:50 Targets, Schedule and Physics

Speakers: Hanne Heylen (CERN), Isabel Frank (CERN), Matthias Alexander Grasser, Simon Thomas Stegemann (CERN)

Physics

• On GPS, post-accelerated ¹³²SnS beams are being delivered to Miniball to study the evolution of collectivity around the doubly magic shell closures at N = 82 and Z = 50. Producing these molecular SnS beams remains challenging, and in this run the isotope of interest is present but with more contamination than expected, which is contrary to the usual benefit of molecular beams. Despite this, the experiment is collecting good statistics, although additional tricks need to be applied to better determine the beam composition. The physicists are happy so far, and the run will continue until Friday.

 

Schedule

• Mail FW: In case there’s a gamma detector suited for the yield station, wouldn’t it be worth asking for some time on Friday to try to see if the reported isobaric contaminations can be suppressed by changing the operational parameters of the target-ion source at GPS? I know of at least one request for this type of beam after LS3. Meanwhile, I could make a last attempt to see if gas injection at a very high pressure can revive the cathode.
• EBIS intervention and its impact on the schedule for next week

14:50 → 14:55 Hall activities / Mechanical workshop requests

Speaker: Oscar Fjeld (CERN)

Last Week: 

• Machined bearing encapsulation - Solid State
• Machine ring for - VITO 
• Detector holder - SEC
• Drilling holes - PUMA 
• Machine Collimator - SEC

New requests :

• Heat Sink bracket - ISS
• Make support for ventilation box of safety cabinet
• Install ventilation

14:55 → 15:00 Safety, AOB, visits

Speakers: 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)

• Guides training on Thursday 2/10 at 14h30
• Document for improvement of chemical storage will be circulated soon
• Morning meeting on Friday at 9h