ISOLDE Technical Coordination Meeting

Tuesday 2 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)

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_wk35 ITM.docx

ISOLDE_wk35 ITM.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)

Last week: End of Cd run

No intervention necessary.

 

This week: Sn run 

Lasers ready and optimized yesterday. Beam to Machine supervisor beginning of the afternoon.

Run until next monday

 

Next week:

- Preparation of the In for CRIS will start on Monday.

- 3D scan of the ISCOOL.

 

Other :

- One of our laser was sent to repair a month ago. After failure to fix in Europe, the laser was sent back to the mother company in the US, which will take time. The company is offering a 3xmore powerful laser in the meantime. We are in discussion to determine if this is a good idea as this requires dump capabilities and probably cooled down beam dumps. However, this laser will be necessary for the Ni runtime.

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)

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Last Week

• • Shipping of Ra-225 to KUL, BE
  • Tb-155 development run from TaC VD-5 target #895M
  • Intervention in S-3 by Abel to exchange the cooling of MEDICIS target section turbo pump
  • ISOLDE UCx target #865 test for Cu-67 dev run

 

This Week

• Cu-67 development run stopped yesterday
  • About 3-4 MBq collected @01.09.25- report and efficiency pending
  • Cu-67 released at low temperatures of 1100 oC
• Intervention in S-2 due to MONTRAC shuttle issues. 
  
  • The shuttle got stuck in S-6 by the doors to S-2
  • The contact power ring was out of the wheel axis and not touching the power rail
  • To be replaced with a spare by Antoine today - Thanks! 
• Bug FGC_93 -> update requested at MEDICIS for electrostatic deflector (J. Parra-Lopez)
• Yb-175 ampoule receiving on Wednesday the 3rd 
  
  • Decontamination and transfer on 3rd-4th September
  • Loading in the target container and on FE on thursday afternoon (friday morning if not dried properly)
• Tb-149 development run wednesday-thursday morning
  • Irradiation 2-3rd September
  • Sample retrieval thursday 4th September morning.

 

Next week

• • Yb-175 collection continued
    • Collection stopped on Tuesday 9th morning
    • Radiochemistry Tuesday morning in 179/R-002
    • Shipping on Wednesday 10th September
  • Tb-155 development run from 9th september
    • Irradiation of #899M from 3-4th September with additional possibility on 8-9th September.

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, the goal was to send post-accelerated 226Rn beams to a traveling setup on the third HIE-ISOLDE beam line to study fission barrier heights in exotic neutron-rich nuclei. After the issues with the production of the beam from several targets, it was decided to go to a different isotope 226Fr still allowing to study the same physics case. Despite problems and last minute change of plans, the beam could be delivered still on Friday evening and the experiment went finally relatively smooth with good data obtained. It was a major effort by the machine supervisors and the target team, who ensured that the experiment could still go ahead. Their dedication was greatly appreciated by the users, and it truly highlights how fortunate ISOLDE is to have such a knowledgeable and committed team.

 

Schedule

• Cooldown physics at CRIS: RaF from Monday 8/12 -> Thursday 11/12 6:00
• High intensity MD to be planned - preliminarily 3/11 or 4/11

 

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

Speaker: Oscar Fjeld (CERN)

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)

• James Devine will be absent for several weeks - rely on HSE for electrical inspections
• Door maintenace in b. 508 on Thursday
• Request from experiment to ship to CERN 13 uraniumoxide targets with a diameter of 0.9 cm each. They contain a total of 2140 microgram of 238U. The total activity is ~30 Bq. --> What to do?
• New panel with instructions on how to use the crane + logbook
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• Refresher for ISOLDE guides to be organised
  • Request your visits at least a week in advance!
  • How can I request a visit?
    • See https://isolde.web.cern.ch/isolde-visits for more info
  • Where can I find presentations and other resources?
    • https://twiki.cern.ch/twiki/bin/view/ISOLDE/ToursOfISOLDE
• Update on B197 - Melania 
  • Reminder - B170 access staircase - scaffolding for cable pulling
  • B197 and B170 ( gas point below) wall painting - starting from Thursday 4 Sept - access to users will be mantained. Please coordinate with the works manager on site when they are working above the access door
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  • Tourniquet and new gate installation TBC