• Cables/connectors for base:  HV cables are in the physics storage room in the EEL. 30 HV connectors are there also, more are ordered. Signal cables are ordered and should arrive soon.

 
• Springs ordering:  I have requested a quote from Smalley. Here are the specs I asked for:
• Outside diameter: 1.402" - 1.418"
• Inside diameter: 1.000" minimum
• Load: 10 lbs @ 0.8" work height
• Free height: less than 1.25", 1" reference
The delivery is possible 5 weeks after print approval. The cost will be approximately $2.50 per spring, assuming we order 800 of those.
 
• Ti flange gluing:  40 flanges have been glued so far. The present rate is 8/day. The rate should be 20/day in permanent regime. We plan to test the gluing (with a 8kg normal force) on 10% of the first samples to be sure the production technic is good.

 
• Tests of Ti flange gluing:  Albert has applied 16kg during a week longitudinally on the block, without any problem (the force we plan to apply in that direction is about 5kg). Transversaly (tork), the gluing can stand up to 5kg at 40cm (more than enough).

 
• Sockets/pins gluing:  60 sockets are ready so far. No problem with that.

 
• Gain monitoring system:  Eugene asked for a quotation on a laser similar to what PRIMEX (Hall C) bought. In the meantime, we borrowed the laser from them for tests.

 
• DAQ:  Ting reports that he setup the readout of fastbus in the EEL building and it works fine, except for a hardware problem, that he is currently investigating. Illinois has ordered the special VME crate needed for the trigger suppervisor.

 
• Collaboration meeting(s):  We plan to have a "working group" meeting sometimes in november in JLab (while Alan is there). Charles accepted to set it up.  Also during the Hall A collaboration meeting in december, we plan to present the status of the photon arm.

 

 

Franck Sabatie - 10/26/1999


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