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Michigan B184 Update October 15, 2004 |
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1) Chambers passing CR test
a) Chambers passing CR test this week:
EML5A09, EML5C03, EML5C07, EML5C15, EML5C05
b) Total number of chambers passing CR test at CERN: 77
2) Chambers in progress
EML5A07 (CR test done, but need to re-install the long FC)
EML5C11 (Initial CR test done, but need to change two mezz cards)
EML5A11 (CR test data taking)
EMS4C10 (Re-work chamber -- replace mezz cards, add DCS, change HV)
3) Chambers in hospital. NONE
4) Problems and other issues
i. Chamber transportation has become critical due to the speed up
of the chamber re-work, or re-certification process. The crane and
truck people seem very busy this week, and probably next week too.
5) Chamber re-work tasks:
1) A total of 27 chambers need to be moved back to Building 184
to replace the mezz cards, and redo the cosmic ray test and
elx scans.
2) An additional 37 chambers need installation of DCS boxes, and
modification of HV connectors. Those chambers will not be
moved back to B184. Instead, they will be moved to Building
180 'LAr clean room' for the rework.
Zhengguo Zhao