ISOLDE Technical Coordination Meeting

Tuesday 29 Apr 2025, 14:00 → 15:00 Europe/Zurich

508/1-001 (CERN)

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

Minutes circulated for review
To follow, update of PLC for the target cooling water circuit to be scheduled with two targets cold.
HRS.BFC4900 replacement and TE-VSC / survey access to HRS separator area

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_W17.docx

ISOLDE_W17.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)

Past week: In beam to LA1 (PAC)

• Setup in advance, and checked a day before the run.
• Smooth operation for 1 day of In to LA1.

 

Current week : In beam to IDS

• Checks will be perforned after this meeting. Start of the run tomorrow.

 

Coming week(s): LIST for Collaps (Tm) then In-source spectroscopy (Pm)

• Laser preparation ongoing for both Tm and Pm ongoing.
• Installation of the controls in the HRS HV cage will be done tommorrow at 13:30.
• LIST target will be put on the HRS FE on Friday.

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

• #887M preparation with fresh batch of ThC charge for of indirect irradiation over weekend
  • Quick test on MEDICIS FE before irradiation
• Ra-224/225 double collection from #880M ThC. 
  • Recieved 3.89E+18 PoT (indirect)
  • continued until monday morning
• Preparation of the pumpstand for the release studies (target change)
• Radiochemical separation on collected Tb-155
• Preparation of #899M VD-5 TaC in anticipation for irradiation on 1st of May.

 

This Week

• Ra-224/225 double collection from #880M ThC. 
  • Finished on monday 
  • Foils retrieved today
• Ra-224/225 double collection from #887M ThC. 
• Preparation and irradiadiation of the samples for the release studies (TaC, smaller grain size).
• Preparation of #899M VD-5 TaC in anticipation for irradiation on wednesday-friday.
  
  • 2000 ppp with 1-1.5 uA of direct proton beam.

 

Next week

• Ra-224/225 double collection from #887M ThC - ends on monday
• Radiochemistry on Ra-224 for shipping.
  • Also 225 shipping 
• Tb collection from #899M VD-5 TaC (direct) on 1st of May. TBC

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, there was a short run to commission a new TDPAC setup using  130,132In with the goal of measuring nuclear moments of excited states in Sn. Since this is a traveling setup, it was scheduled that this run will continue later on the GLM beamline, but this is not yet confirmed.
• On HRS, neutron-rich Ar beams are sent to the ISOLTRAP spectrometer for precise mass measurements in the context of the evolution of nuclear structure around proposed neutron shell gap at N = 32. The run suffers from beam gates which don't completely block the beam and unforeseen contaminations, but they are now running relatively smoothlty and they will get some interesting data out.

 

Schedule

 

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)

• 170/R-020: move contaminated equipment