MERIT pre-installation review: Preliminary conclusions

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Presentation transcript:

MERIT pre-installation review: Preliminary conclusions Fabich

Follow-up: Safety Review of mercury system http://edms.cern.ch/document/754444/ Draft answer: http://cern.ch/merit/doc/HgSafetyReviewAnswer.htm Hot issues: Item 11: LEXAN cover on sump tank and as lid Latest documentation on used materials and procedures is currently looked at.

Follow-up: Cryogenics and solenoid review https://edms.cern.ch/file/710659/1/memorandum.pdf Item 2: User’s notice. Yet now written procedures on installation and operation of the solenoid&cryogenics have been provided. Cryogenics part by AT/ECR Item 5: Results of non-destructive test (x-rays of welds) Item 8: formal answer by collaboration is required.

Pre-installation review Installation in TT2A during PS2 run with beam possible. Personnel radiation dose plan and access procedures need to be written. The use of PU foam is currently investigated. Safety valves of cryostat and vacuum jacket. Maximum operating pressure of cryostat limited to 10 bar. Resolves a lot of issues. A lot is dependent on the surface tests at build 180: leak test (warm and cold), condensation.