General announcements

• Luis M Fraile (CERN)
• Hanne Heylen (CERN)

Room: 508/1-001 **Newsletter, outreach** **CERN matters** **Budget and administration** **Technical** **General** - ISOLDE summer party: Wed July 8th - Pool of chemicals was moved (Ethanol, Aceton, Methanol, Isopropanol, Ethylene glycol) - isouser password was changed

Overview of ISOLDE activities Room: 508/1-001 https://isolde.web.cern.ch/isolde-hall-activities-ls3

Safety announcements

• Hanne Heylen (CERN)
• Luis M Fraile (CERN)

Room: 508/1-001

Visits

• Hanne Heylen (CERN)
• Victoria Vedia (CERN)

Room: 508/1-001 Rota to be found on: https://cernbox.cern.ch/s/qbqEUB41tAvAzWa

AOB

• Juliana Schell (Institut Fur Materialwissenschaft Universität Duisburg-Essen (DE))
• Jessica Warbinek (CERN)
• Carlotta Porzio (CERN)
• Amy Sparks
• Hanne Heylen (CERN)
• Luis M Fraile (CERN)
• Christoph Schweiger (Max Planck Society (DE))
• Tim Enrico Lellinger (Max Planck Institute for Nuclear Physics)
• Patrick MacGregor (CERN)
• Victoria Vedia (CERN)
• Peter Plattner
• Magdalena Kowalska (CERN)
• Liss Vazquez Rodriguez (Max Planck Society (DE))

Room: 508/1-001 Photos for corridor: https://cernbox.cern.ch/s/WPzjPyTeuGDGXFM Summer student talks – here is the calendar (will also be circulated again via email): https://cernbox.cern.ch/external-ms365/public/n05cgb3FhUv455w/ISOLDE_summer_student_talks_2026.xlsx?contextRouteName=files-public-link&contextRouteParams.driveAliasAndItem=public%2Fn05cgb3FhUv455w&contextRouteQuery.fileId=n05cgb3FhUv455w ISOLDE elogs

ISOLDE seminar or Physics presentation by local group

• Carlotta Porzio (CERN)
• Annie Dolan
• Hanne Heylen (CERN)

Room: 508/1-001 **Title:** Geometry update of HiRadMat Beam Dump FLUKA model **Speaker:** Lorenzo Forlani (CERN) **Abstract:** This presentation aims to illustrate the update of the FLUKA model of the HiRadMat facility, located in the TNC tunnel in the former West Area of CERN, to provide a useful tool for radiation protection studies and comparison with the experimental results. In particular, the work focused on updating the facility dump geometry model, which was changed in 2021. This has been done using two approaches: the traditional geometry construction method, based on the definition of bodies on FLUKA, and an innovative one, consisting of an unstructured mesh creation and import. These two models were then compared to the previous geometry model by both observing the differences in the particle fluence spectra over the tunnel section (for different particle types) and comparing the fluence values integrated over the solid angle and energy spectrum.