Difference between revisions of "Minutes-4-21-2011"
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= Minutes = | = Minutes = | ||
| − | Participants: Eugene | + | Participants: Eugene, Dave, Chris, Simon, Beni, Glenn, and Lubomir. |
== Production == | == Production == | ||
| − | - | + | - we found discoloration spots on the first cathodes that were produced at Blue Crab. The spots are brown but have blue color at the periphery. Eugene explained the finding done with electron microscope by Olga: chlorine was found, so most likely this is copper chloride (brown) and copper chloride dihydride |
- the first production cathode was glued tensioned and the frame was glued to it; cutting the flaps and the holes is next. Some of these procedures still require signatures. Cutting the second production cathode started with problems with the cutter. Bill thinks it is the granite surface that damages the blades. Using harder blade and treating the granite surface must help. Bill also made modifications to the cutter to prevent wobbling of the blade. | - the first production cathode was glued tensioned and the frame was glued to it; cutting the flaps and the holes is next. Some of these procedures still require signatures. Cutting the second production cathode started with problems with the cutter. Bill thinks it is the granite surface that damages the blades. Using harder blade and treating the granite surface must help. Bill also made modifications to the cutter to prevent wobbling of the blade. | ||
Revision as of 14:31, 21 April 2011
April 21, 2011 FDC meeting
Agenda
- Production (Dave)
- Cathode production, copper discoloration
- Wire plane production
- Other issues
- Electronics status (Fernando,Chris)
- Engineering status (Bill)
- Chamber testing (Lubomir)
- Other
