Difference between revisions of "Minutes-5-19-2011"
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- Dave: the set-up for gluing the rigid-flex assemblies is ready; today we will start gluing the assemblies on the first two production cathodes. The set-up was tested today with one flex glued then removed and then glued again. Two other cathode planes were glued, one of them tensioned and the frame glued on it. | - Dave: the set-up for gluing the rigid-flex assemblies is ready; today we will start gluing the assemblies on the first two production cathodes. The set-up was tested today with one flex glued then removed and then glued again. Two other cathode planes were glued, one of them tensioned and the frame glued on it. | ||
− | - On one end window the epoxy didn't cure, but a sample from the same epoxy (and the left part in the cup) did cure. We suspect the surface was contaminated. Eugene: it's possible the epoxy was not mixed good enough. Also the surface on the end window is the only surface on the g10 frames that is not machined, and it is very smooth. | + | - On one end window the epoxy didn't cure, but a sample from the same epoxy (and the left part in the cup) did cure. We suspect the surface was contaminated. Eugene: it's possible the epoxy was not mixed good enough. Also the surface on the end window is the only surface on the g10 frames that is not machined, and it is very smooth. On the second end window done in the same way the epoxy cured better. Most likely it was a contamination problem: we cleaned better the second end window. For the future production we will sand the surface of the frame. |
− | - | + | - Two wires were broken on the first production frame while removing it from the strong-back. Bill will make a tool that separates the frame from the strong-back. The pin rail was taken for fixing at Vision Machine and we expect it back hopefully later this evening. After that we can fix the two wires. |
== Engineering == | == Engineering == |
Revision as of 23:27, 19 May 2011
May 19, 2011 FDC meeting
Agenda
- Production (Dave)
- Cathodes
- Wire planes
- End windows: epoxy problem
- Engineering (Bill)
- Vibration measurements at Blue Crab
- Pin rail modification
- Other: field wire report from Olga
- Electronics status(Fernando, Chris)
- Chamber testing (Beni)
- Equipment for Blue Crab
- Timing with fADC125
- Other