Revision as of 17:54, 28 April 2011

April 28, 2011 FDC meeting

Agenda

Production (Dave)
- Status
- Lessons learned from the first weeks of production
- Discoloration spots: report from Olga Trofimova
Electronics
- Status (Fernando,Chris)
- Preamp settings: gain, dynamic range (Fernando, Beni) logbook and GlueX-Doc 1364: Test of GlueX preamplifier
Engineering status (Bill)
Chamber testing
- Calibration and resolution studies (Simon) logbook page 554
Other: talks at the collaboration meeting

@@ Line 27: / Line 27: @@
 - Two cathodes are glued to the frames, including the flaps. Next steps: tensioning/gluing the mylar and gluing the mylar flaps on top of the copper flaps. We have to decide what should be the tension on the mylar: it's not as critical as for the kapton foil. For gluing the mylar flaps Bill suggested using conductive epoxy only in the area overlapping with the copper flaps, and regular epoxy over the g10 frame. Mark made the template needed to make holes on the mylar.
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+- One wire frame was strung and now they are measuring the wire positions. The new laser sensor that was mounted on the system has higher resolution but there was not enough light reflecting from the wire. We replaced it with the old sensor that, after some tuning, is being used with the old software for position measurements. The CC wants us to give them the computer used with the wire stringing system for repairing the OS. Eugene: this is critical for the production and we don't want to spend even an hour on this now.
 == Electronics ==