ISOLDE Physics Group Meeting (PGM)

Tuesday 29 Jul 2025, 16:00 → 16:30 Europe/Zurich

508/1-001 (CERN)

16:00 → 16:10 General announcements

Speakers: Hanne Heylen (CERN), Sean John Freeman (CERN)

• Student seminars
  • This Thursday 14h00
  • Reminder for students: Send titles
• RP classroom course 5/8 and 12/8 for ISOLDE is cancelled in the first 2 weeks
• Gas bottles
  • responsible on EAM light are usually missing
  • 14 He-gas bottles found
  • Recommend: assign them to yourself
  • Many of them are older than 3 year

16:10 → 16:15 Safety announcements

Speakers: Hanne Heylen (CERN), Sean John Freeman (CERN)

• Chemicals in pool

Common pool

• As announced, I've cleaned out the cabinet used for chemicals at ISOLDE and I've kept following items for the common pool
• Isopropanol: 2x 7.5l, 1x5l safety canister, 1 spray bottle
• Aceton: 2x 7.5l 
• Methanol 1x 5l safety canister (not sure about exact quantity)
• Ethanol: 2x7.5l of ethanol *more on this below
• On top of the pool quantity above, I've kept the ISS dilution and a SPEDE canister.
• A pallet has been set aside with everything I intend to dispose of. If any of the items belong to you and I was a bit too enthusiastic in deciding to remove them, please let me know as soon as possible.
• 

 

Ethanol

As far as I understand, several collaboration use ethanol in their chillers and this was actually the chemical of which there were most containers.  Nevertheless, I would also like to go to a pool system here, but it depends on your needs:

• How much liter do you need for application? How often do you need it (continuous, a few times per year, once every few years, ... )
• We should also explore if a dilution could be appropriate (example ISS: https://edms.cern.ch/ui/file/3090096/1/Procedure_Chilling_the_ISS_silicon_array_with_an_ethanol_dilution_v1.pdf) but this depends on the exact needs (freezing point). This could be another way to reduce the amount of chemicals, alternative to having the pool system.
   

General notes about chemicals

 

• Size of packaging: please be mindful of how much chemicals you buy. Often, they are quite cheap and readily available, so do not stock up on unreasonably large quantities. Additional practical point: these large containers are much more difficult to store!
• CERES: could you please check that all your chemicals are added to the CERES inventory, I've updated the pool ones. From my limited experience with CERES, it's convenient to use and I like the feature where you can indicate the specific location where the chemical is (instead of just 170/R-001 which is huge):
• 

16:15 → 16:20 Visits

Rota to be found on: https://cernbox.cern.ch/s/qbqEUB41tAvAzWa

Speakers: Hanne Heylen (CERN), Victoria Vedia

16:20 → 16:25 Physics of last week

Speaker: Hanne Heylen (CERN)

16:25 → 16:30 AOB

Speakers: Amy Sparks, Carlotta Porzio (CERN), Christoph Schweiger (Max Planck Society (DE)), Hanne Heylen (CERN), Jessica Warbinek (CERN), Juliana Schell (Institut Fur Materialwissenschaft Universität Duisburg-Essen (DE)), Liss Vazquez Rodriguez (Max Planck Society (DE)), Magdalena Kowalska (CERN), Patrick MacGregor (CERN), Peter Plattner, Tim Enrico Lellinger (CERN, Technische Universitaet Darmstadt (DE)), Victoria Vedia