ISOLDE Technical Coordination Meeting (LS3)

Tuesday 7 Jul 2026, 14:00 → 15:00 Europe/Zurich

508/1-001 (CERN)

14:00 → 14:05 General news - Review of minutes

Speakers: Erwin Siesling (CERN), Hanne Heylen (CERN), Joachim Vollaire (CERN)

14:05 → 14:15 Safety matters

Speakers: Hanne Heylen (CERN), James Devine (CERN), Joachim Vollaire (CERN)

14:15 → 14:20 IBDRS, Ventilation primary areas upgrade, BTY line @ 2 GeV

Speakers: Ana-Paula Bernardes (CERN), Joachim Vollaire (CERN), Melania Averna (CERN)

IBDRS_reporting_S27_26.pdf

Primary_areas_07_07_2026_JV.pdf

Primary_areas_07_07_2026_JV.pptx

PXL_20260707_051343746.jpg

14:20 → 14:25 RILIS Laboratory upgrade project - activities update

Speakers: Carlotta Porzio (CERN), Katerina Chrysalidis (CERN), Laura Lambert (CERN), Sebastian Rothe (CERN)

• Guards de corps for the concrete platform put in place Thursday
• Next Thurs scaffolding to intervene extending the platform above for the access point to the concrete platform in preparation for some work by EN-EL
• Metallic structure finally approved and sent to supplier for IPN  beams fabrication
• Platform construction delayed until end of July / beginning of August
  • Will likely go ahead with building both 1st and 2nd level during August
  • Concrete pouring now planned for beginning of Sept

14:25 → 14:35 Machine related activities in the experimental hall

Speakers: Erwin Siesling (CERN), Simon Mataguez (CERN)

Platform EPC:

• Lights above the platform (Jerome Cantet, Andy Hamy EN/EL) - solution studied: fixed an wall and above racks. Offer being made. Timeline Beginning of August.
• Remaining cable work (extensions and new connectors tital 100 cables) will finish 20th July (due to non-availability of the cable team (HL-LHC))
• With some delay the commissioning of the new power supplies and controls by OP is expected to start ~20 July
• Nicolas commissioning the controls on the platform done (gateway and power supplies)
• Local circuit-breakers de-consignation done by First-Line this morning after the endoscopie intervention yesterday on the elements and shielding convined within the shielding walls between the HRS and GPS sep zones and target area (Stefano Marzari).
• Modification ex-false floor in 170 still to be seen with Severin (Erwin)

 

197 Power supplies consolidation:

• Renforcement of the metal floor structure asap in July (Jordy) if resources are available, alternatively Sept / or via Severin to keep timeline - news?
• EPC to come with a date to empty the racks
• Old MISTRAL power supply to be moved to 275, but not without a plan (Hanne Heylen / Dave Lunney): consignation done, Andy will remove the AC connections, DC and temp/interlock cables to be disconnected (James Devine) - news? , water tubes to be disconnected (Alex?) - news?

REX/HIE ISOLDE: 

• In the frame of the REX LLRF consolidation the REX LINAC RF cavities chacterization measurements were carried out last week by Daniel Valuch and Giampaolo Piccinini. 
• Actions on the REX/HIE list:
  - HIE: replacement prim. pumps CMs, backing & roughing lines - Oct/Nov (after LHC LS high peak work).
  - Modification of the chamber of the XL9GP Quad (last in REX LINAC before CM1/DBox) (Nicolas Thaus TE/VSC). Quad to be taken out for this - to be scheduled with Antony Newborough and transport. - meeting in situ Wedn 08/07 with Nicolas Thaus (VSC). Additional NEG pump to be added onto the XLN2 DBox: At re-installation edn of '27.
  - Removal of the obsolete 9GAP 202MHZ amplifier workaround cables (2015) from the mezzanine/MR-Tof area into the tunnel to the 9GAP structure (~11x) in the cause of next week (with RILIS cable team work). For this for a few hours the trench next to RC6 going into the HIE tunnel will be opened. Exact day and hr will be communicated asap.
  
  
• REX Low E development:
  - Replacement of the leaking REX mass slits actuator for a bellow type one - decision to be taken on the type (Fredrik in strong favour of the manual version). Alberto would like to have it as a subject of the next SGUI meeting (Wedn 08/06) to evaluate both options (manual/remote controlled) and have a decision made through the SGUI on how to proceed.
  
  
• RILIS cable tray and cables rerouting activities: Scaffolding + garde corps this THursday (no crane) and work on heights next Thursday (no crane). In close collaboartion with the WISARD experiment.
  
  
• For installation of the CHROME related cables a scaffodling has been put up along the VITO and over the CAO line around the REXTRAP cage. Work will start with the availability of cables teams next week (after/with RILIS) and last ~2 weeks (Julien Allamandy teams).
  
  

• XT01 MINIBALL AC power distribution presently through sockets will be improved and brought up to standard to a semi-permanent installation (budget allocated). Work to start tomorrow: 08/07 (Jerome Cantet EN/EL). Will require ~30 min power cut for the Miniball setup: To be verified with Miniball (Carlotta).
  
  
• BI workzone, for HIE (and other) instrumentation, workspace is allocated between the XT03 and XT02 beamlines: 2 work benches and test set-up have been installed. Network connections been allocated (J. Tassan-Viol) - attention: In the frame of the CHROME cable installation work the workbench next to the XT03 will need to be moved for a few hours in the cause of the coming weeks to allow access to the cable team (2 monitor positions, at the benders and at the end of the line). Same for the are between XT01 and XT02: The wooden BI crate will be moved to the XT01 side.

 

Separator zones HRS & GPS:

• Endsocopy carried out of the beam lines in the convined shielding blocks space between the Separator zones and target zones. Shielding and Quads connections and wheels found as per drawing (Stefano, Joachim STI).

 

Commissioning new target heating power supplies 170 HT room:

• GPS heating test were carried out Friday-morning 26th for which the deconsigation and re-consignation were carried out accordingly. Cooling water was stopped afer the tests again (avoid condensation in at the FE side) as well as the GPS10 FE TP's.

Fiber Optics work:

• 2nd phase of the White Rabbit fiber optics installation (Nenad Simic) has been scheduled for wk34 with a VIC on the 12th Aug.

 

Fume cupboard exhaust GLM/GHM zone:

• Options have been discussed and agreed on between CV (Nina), Transport (Yann/Filippo) and ISOLDE Tech coordination.
• Timeline: in the cause of '26

 

Ethernet/WiFI 197 & 508:

• Interventions on the starpoints were carried out Fri 26/06 with relatively little impact. Communication was back for the heating tests at GPS.

 

14:35 → 14:40 Experiments related activities in the experimental hall

Speakers: Hanne Heylen (CERN), Oscar Fjeld (CERN)

Ongoing/planned

• IDS measurement campaign (until 12/8)
• Wisard measurement campaign (until 21/7)
• TAS visit in preparation for measurement (week 29)

 

Storage

• Move of chemical storage ongoing (ECR
• Need place to store Gandalph chamber (2.5m  x 0.75m x 1.5 m) for 2 years because no possibility in radioactive storage

14:40 → 14:45 Experiments related activities in the experimental hall

Speaker: Erwin Siesling (CERN)

20260703_122505_tw.jpg

ISOLTRAP:

• Work started Thursday 18/06 with the scaffolding and removal of the alu staircase from 1st to 2nd floor.
• VITO laser beam pipe integrated in the scaffolding
• Removal of the 2nd wooden floor and installation of the alu new structure, floor plates and 'garde-corps' went according to plan and is all in place.
• Next phase: re-installation of the alu staircase and replacement of the 1st wooden floor for the new alu structure and floor plates
• Timeline: activities until 18/08
• Emergency exit ladder part to be installed (Severin)

 

WISARD:

• taking data wk27-29 until July 19
• Coordinated with ISOLTRAP & RILIS work.
• Small modification done 07/07 to the zoning of the dewars manipulation for the WISARD platform: gaining ~30cm to move the dewars further onto the platform. This improves significantly the safety (large dewar was on the very edge when craned in place) (Filippo Cappelletti EN/THE).
• Please inform Transport in time when wanting to remove the inner structure (Yann Seraphin).

COLLAPS/CRIS platform:

• COLARIS p;atform 3D integration being finilized as well as laser rooms.
• Discussion on solutions and calculations ongoing with CE for stability and type of pillars for the mirrors.
• Costs and budget alloctaion being addressed.
• AC solutions for the laser labs being looked into (cheap versus expensive verus stability and integration).
• Timeline: CE design and quotation by the end of the summer, ECR ready by the end of the year, start platform construction Jan '27

 

IDS:

• Solution for the falling plastic not yet in place. Proposal closure of the openings with alu plates: Severin to be contacted

 

VITO:

• Temporary installation of a HT cage next to the REXTRAP timing rack foreseen for a few months
  
  

Beamlines:

• RC6 MR-Tof installation work continuing (Lukas / Alex)
• Cabling work in the RC6/RL7 area few details to finish as of next week when cable team is back
• Old 9 GAP RF cables going to be removed - in parrellel with RILIS work as of next week.
• RL7 installation work on supports and equipment continues
• Solution found for the AC distribution. Discussion on final AC power cabinet position (next to RL7 or on the wall). Rollable final connection of the 125A lines so no permanent cable tray installation.
• Cable work would start end of Aug wk33/34. PUMA transport not realistic before Sept anyway.
• Installation of new PUMA related RP monitors at the end of the RC6 and next to PUMA (at the Miniball side). Permanent installation (Jerome Cantet EN/EL). Meeting in situ (to be) scheduled for Thursday 16/07 (availability stakeholders (PUMA / RP / Miniball/ Carlotta))

 

Infrastructure / cooling and chilled water cut (IBDRS related) (dates:  19/08   -  May '27 ?  - news?   ):

• Compressed air to be kept (isolate 198/199 area from 170 area)
• 508 AC will be cut affected: Laser labs 508 will be affected
• Possible solution being studied with flexibles to connect existing chiller over the roof and keep the present configuration of AC for 508 (Alexandre Fournier CV). Transparent to the users and avoids complicated installation of an individual AC unit for VITO (and no AC for other setups nor ICR) - news?
• 170 demi water 27 degrees will be cut: COLLAPS, VITO, PUMA will be affected
• 170 raw water 20 degrees will be cut: Timeline fits with LLRF characterization measurements of the REX RF structures (D. Valuch, G. Piccinini) & Solid State amplifier commissioning as of Sept/Oct '27 (G. Piccinini)
• Timeline should fit with Cryo tests foreseen Q4 2027 in the frame of the integration of the LHe dewar and restart of the Cryo plant - 27 demi cooling water needed (N. Guillotin, T. Dupont)

 

14:45 → 14:50 Mechanical Workshop and other support requests

Speaker: Oscar Fjeld (CERN)

Last week:

• Teflon parts - COLLAPS
• Flange - COLLAPS
• Flange - VITO 
• Ti44 - support - IDS
• Detector holder design support - Lorenzo 

 

Next week / new requests:

• Bachining and waterjet cut - ISOLDE beam developement 
• Rotary stage clearence fix - COLLAPS
• Cut alu profiles - VITO 
• Print tungsten sphere
• Unbolt converter - James 

14:50 → 14:55 Review of ECRs

https://edms.cern.ch/document/3287895/0.1
ISOLDE-RC6 Timing Specifications Lukas Nies Sebastian Rothe [SY-STI]
Joachim Vollaire [SY-STI]

https://edms.cern.ch/document/3391077/0.2
The RC-7 Transfer Line and PUMA-Frames at ISOLDE M. Kirschbaum L. Fraile EP-SME
J. Vollaire SY-STI
E. Siesling BE-OP-ISO

J’ai mis en accepted, mais pas en released la nouvelle version… je le fais ?

EDMS Tittle Prepared by Approved by
https://edms.cern.ch/document/3385882/0.1
Central Beamline Sharing at ISOLDE L. Le (SY/STI)
L. Nies (SY/STI)
J. A. R. Rodriguez (BE-OP)
L. Fraile (EP-SME)
S. Rothe (SY-STI)
J. Vollaire (SY-STI)

14:55 → 15:00 Planned visits and AOBs

Speaker: Hanne Heylen (CERN)