Revision as of 19:23, 31 January 2013

January 31, 2013 FDC meeting

Agenda

1. Production Construction Tracking (Dave)
2. Basis of Estimate for the FDC activities, Dave's estimate for consumables, guideline (Lubomir, Bill, Dave)
3. Corrosion tests at MePhi Vlad's set-up, and results (Lubomir)
4. Engineering (Bill) [1], [2], [3]
5. Electronics (Chris, Nick)
6. Tests at EEL126 FDC E-log (Beni)
7. Other

Minutes

Participants: Eugene, Bill, Dave, Chris, Nick, Simon, Beni, and Lubomir.

Production

- Dave: Spare parts:about 70% are done (see the link above). Tina, Dave and Casey worked last Saturday to catch up with the foil gluing.

- Lubomir for package #2: all the channels were tested and are working fine, except noise was found on wire #37 of cell #2 (same wire that was replaced before). Same noise is visible on the top and bottom strips intersecting in one point close to the middle. On Monday we opened the package and Casey tried to clean that place and we closed the package with 5 cells. On Tuesday we found the source of the noise moved by 5cm and Casey did another attempt to clean it. On Wednesday we found again it moved by 2cm and decided to replace the wire. Casey and Dave replaced and checked the wire position and tension. Interestingly, the new wire was parallel to the old ones at <10 microns level at +/-20cm from the center. That means the strong-back didn't move since this old wire frame (#10) was strung. We looked also at the wire with a microscope at that place: tiny fiber around the wire seamed to be visible and looked darker. After the meeting we installed the last two cells of the package.

Basis of Estimate for the FDC

- The BOE linked above is now more complete and includes estimates also for the installations. Bill, Dave and Lubomir discussed all the items and modified the document significantly. There are now two testing procedures for the packages. One, as it was in the original schedule "Final Assy. and Testing" which is what we have done already with two packages, i.e. partially testing using 2 fADC125. The second is the full tests with all the electronics needed for one package, that is not in the schedule. Beni will also look at the testing procedures in the BOE. Eugene requested breakdown of the man-weeks in different types (techs, scientists, engineers).

Engineering