ISOLDE Technical Coordination Meeting

Tuesday 29 Jul 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_W30.docx

ISOLDE_W30.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

• Preconditioning/outgassing of 2nd batch Indian ThC (896M) for testing and collections
• Mass scan MD
• Open collection chamber shielding to access Kromek detector and test collimators - Wednesday morning.
• Ra/Ac225 radiochemistry with HUG in Glovebox Thursday
• Irradiation of Ra-224/225 double collection from FLUKA charge (#880M)
  • Around 1E+18 PoT direct
  • Target vacuum failed

 

This Week

• Shipping of Ra-223 to Rennes, France
• Investigation of the frontend vacuum trips both from the target presence switch and target leak
• Irradiation for Ra-224/225 that was not shipped due to previous target failure.
  • 2nd batch Indian ThC
• Possible continuation of Ac-225 labelling studies with HUG

 

Next week

• Collection of Ra-224 to Dresden, Germany and Ra-225 to CMI Czech Republic
• Indirect irradiation for Eu-145 collection to NPL

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

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

Physics

 At HRS, post-accelerated ²⁰⁶Hg beams are being sent to the Miniball experiment for the third experiment in their plunger campaign this year. The focus is on measuring lifetimes of excited states, with the goal of studying nuclear structure around the doubly magic ²⁰⁸Pb nucleus. The experiment is very grateful for the efforts done by the machine supervisors which meant that the experiment could start 1 day earlier. So far, the experiment is going smoothly, and if things continue like this, it seems likely that the users will be able to successfully complete their physics goals by Thursday. It’s also the first experiment in a while without major problems, so hopefully this continues like this 🙂.

Schedule

• Test combining pulses on MEDICIS low-trolley and on HRS target in same supercycle end of September, like we tested in 2023?
• Hanne on holidays from Thursday 31/7 - Monday 11/8
  • Start-up meeting for next week ISOLTRAP experiment and collection on Friday - requested by users

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

Speaker: Oscar Fjeld (CERN)

Last week: 

• Closing flange SPEDE
• Moving RP safe 
• Small machining for Felix
• Pressurized air adaptor changed
• Dissassemble and support remount of turbo PUMP ISOLTRAP

 

New requests:

• Extend SPEDE cooling circuit
• Secure gas bottles gas point 
• Machine for VITO
• Attach gas bottle next to RP safe
• SPEDE Connection between exp and beamline

 

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)

• Chemical cabinet SY - 'transfer' to EP
• Fumehood in GLM for non-RP related issues