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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

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Merit pre installation review preliminary conclusions

MERIT pre-installation review:Preliminary conclusions

Fabich


Follow up safety review of mercury system
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
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
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.


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