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ISOLDE Technical Coordination Meeting (LS3)
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Europe/Zurich
508/1-001 (CERN)
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14:00
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14:05
General news - Review of minutes 5mSpeakers: Erwin Siesling (CERN), Hanne Heylen (CERN), Joachim Vollaire (CERN)
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14:05
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14:15
Safety matters 10mSpeakers: Hanne Heylen (CERN), James Devine (CERN), Joachim Vollaire (CERN)
- (HH) Incident in 275 electronics workshop:
- Following a clean-out of the electronics workshop in B.275 on Wednesday morning, 1 person reported dizziness and 1 person skin irritation and dizziness, likely due to a chemical which was stored in the electronics workshop and was moved during the cleaning.
- Workshop remains closed until causes are understood.
- First visit with the fire brigade this morning, tomorrow visit with all involved parties.
- (HH) Incident in 275 electronics workshop:
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14:15
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14:20
ISOLDE EN-CV projects and activities for LS3 5mSpeakers: Alexandre Fournier (CERN), Ana-Paula Bernardes (CERN), Joachim Vollaire (CERN), Melania Averna (CERN), Nina Marianna Szczepanik-Scislo (CERN)
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14:20
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14:25
RILIS Laboratory upgrade project - activities update 5mSpeakers: Carlotta Porzio (CERN), Katerina Chrysalidis (CERN), Laura Lambert (CERN), Sebastian Rothe (CERN)
- ACE / HE
- Light structure dismantling complete
- SCE / HE
- Planned date for start is week 21
- AA
- Monobloc to be removed Tues 19
- CV
- H20 pipe across rilis roof (see photo) might need removing or displacing, to be confirmed what it is...
- AOB / safety
- Fire extinguisher by HRS door
- See photo for current vs new placement
- Lead
- finished removing from ISOLDE, now in b.179 for controls
- Fire extinguisher by HRS door
From JV:
- Check of vacuum pumps temperatures with plastic cover. Should we make some opening for minimum air exchange
- ACE / HE
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14:25
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14:35
Machine related activities in the experimental hall 10m
IS work #1.
Speakers: Erwin Siesling (CERN), Simon Mataguez (CERN)Platform EPC:
- Gatway FE's operational - 1st control tests can be carried out
- Cables to machine ~80% tested. Remaining are the GPS & HRS separator zone elements - see planning
- Vacuum interlock unites in place (Nicolas). ISEG power supplies all in place
- Estimation Nicolas: mid June ready for commissioning of the full chain
- Vacuum racks installed. Move of the controllers from the racks downstairs at a later moment (?)
- False floor almost ready (few bars missing). Beams and metal floor 508 side entrance installed and ready
- Some neons on the ceiling would be wishful
- Removal of the scaffolding below the platform still to be done followed by adaptation of the old false floor. Proposal Jean-Pierre Billon-Grand. To be defined when and who (Jordy team?)
REX/HIE ISOLDE:
- Suggestion Guillermo to replace all primary pumps on the HIE ISOLDE CM's, backing line and roughing line - estimation 1/2 day once all material is in place: end of May / June, to be scheduled according to VSC availability
- Info Giampaolo 2 wks ago: The REX RF amplifiers will be consolidated this LS, however, the Low Level RF will need to wait and will not be included.. (There will be remote operation possible in case of an amplifier restart). To be clarified
- REX-ISOLDE leak tests (Guillermo):
- leak detection in the RFQ sector carried out.
- actuator in the RFQ sector causing leaks when being pushed in/out. Sparks > 1E-6 mbar-l/s: Suggestion to replace the flange and actualtor with a manual KF-sealed feedthrough. No drwaings of the present confguration (remove the excisting setup for measurements to define stroke length and flange size (Fredrik))
- second actuator in the SEP10 sector not in use but expected to show same behaviour: Suggestion to be replaced by a DN100 gate valve and 300l/s TP - Suggestion Guillermo regarding further tests: potentiol aleak in the large box in SEP10. Helium background slope to be analyzed and attempt to distinguish between permeation and a real leak. These tests will require some preparation and should be planned in advance (Fredrik does not expect the large flange to be the issue)
WIth the core drilling in the HRS Separator area this could be scheduled as of later next week. - Temporary/new position fire extinguisher from HRS Sep zone door to on the wall next to the REXTRAP cage (Laura)
HEBT lines Gas-distribution system commissioning:- ( Check Status) Gas detection system tests finished last week with a few points to address:
- Interface with outside panel to control the various electro valves (waiting for new safety valve to be installed in the outside cage (Letizia))
- in the 3 racks a copper grounding bar is missing to connect the detector equipment (James) - Since there will be no use of the system during LS3 an IS37 has been put in place (Letizia)
Separator zones HRS & GPS:
- Presently core drilling for survey interconnecting networl ongoing in HRS
- GPS FC490 will be removed to accomodate the scaffolding above the GPS 20 sector for upcoming core drilling. VSC (Guillermo) provided an ISO blind flange to BI. BI team is adapting a plexi storage box for the FC490 unit (highly contaminated!)
- HRS & Replacement of the HRS20 & HRS30 pumping groups valves in the HRS separator zone (Guillermo) - to be scheduled
- HRS & GPS EPC cabling tests remain to be carried out: Cable team presently busy at RC6 / RL7 - to be scheduled
Work in the 170 HT room:
- GPS and HRS target heating power supplies replacement has finished
- Boris tube HRS & GPS HT tests to scheduled. Idea to test heating power supplies in parallel. Needed: deconsignation of the HT power supplies and Target cooling water system operational (?)
Beamlines:
- RC6 & RL7 signal cabling (BI / Vacuum) work on the floor and mezzanine side ongoing + installation work of RL7 equipment
- A few BI cables to RL7 were found to be too short: Solution has been found (Rustan & contractor) in re-routing them
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14:35
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14:40
Experiments related activities in the experimental hall 5mSpeakers: Hanne Heylen (CERN), Oscar Fjeld (CERN)
Ongoing
- Measurements at IDS ongoing, some issues with the cabling activities in RC6 (solved in the mean time it seems)
- Pieces of plastic falling
- Ceiling incomplete?
- Tools on tables, equipment in cordoned-off areas
- COLLAPS starts installation of ion source this week/next week
Planned
Not aware of anything in the coming weeks.
- Measurements at IDS ongoing, some issues with the cabling activities in RC6 (solved in the mean time it seems)
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14:40
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14:45
Experiments related activities in the experimental hall 5mSpeaker: Erwin Siesling (CERN)
ISOLTRAP:
- Emergency wall cutting/core drilling done and concrete evacuated (Severin/contractor). Concrete wall sides to be finalized.
- ISOLTRAP side cable tray and pipes to be lowered once the new platform floors are in place
- ISOLTRAP platform replacement work: 18th June scaffolding - first platform part to finish ~22 July.
- VITO laser tube is to stay in place: Has been discussed with the scaffolding organising responsible (Michael Bourbon). To be noted on the scaffolding contractor's work order at the next occasion.
WISARD:
- planning to come 15 - 19 June to mount the setup for off line data taking
- week 27 (29 June) to cooldown the magnet
- taking data wk27-29 until July 19
- Coordinate with ISOLTRAP & RILIS work. Crane needed for dewar craning WISARD
Beamlines:- Vacuum rack next to the VITO setup is for vacuum equipment only and needs sorting out (Abel). See pictures AOB (Hanne)
- PUMA - RL7 installation work on supports and equipment ongoing
- PUMA LS running discussed with Richard Scrivens & Mark Kirschbaum - to secure, as planned, services from the groups from Aug '26 - start 2028.
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14:45
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14:50
Mechanical Workshop and other support requests 5mSpeaker: Oscar Fjeld (CERN)
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14:50
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14:55
Planned visits and AOBs 5mSpeaker: Hanne Heylen (CERN)
- Follow-up of the PUMA adds-on on the crane. For EN-THE, the proposal is to install and remove the equipment every time.
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Dear Colleagues,
The vacuum rack VY.RC0, located in the middle of the hall and close to the VITO experiment, it's becoming filled with all sorts of materials that don't belong to the vacuum system. This situation isn't new, but it's getting worse over time. The equipment installed on this rack controls the instrumentation and actuators for several vacuum sectors, and a failure in any of them, caused by an impact or falling material, could shut down the entire system. Therefore, could you please inform those responsible for this equipment and other materials that our rack is not a storage area (let alone a clothes rack, as shown in the attached photo), and that they must remove everything immediately, leaving the perimeter of the rack completely clear, both in front and behind?
Thank you for your understanding.
Best regards,
Abel
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14:00
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14:05