TF Management

Timeline

7/30/08: Tony report's at Qweak collaboration meeting that GEM detector construction complete BUT the Charge collector Vendor has delayed delivery. 8/?/08: 2 Charge collectors arrives at ISU. None were useful, CERN and I saw problems they will fix and send 2 more. 8/30/08: Latech and W&M components to the Collaborative MRI grant expire, Virginia Tech receives an extension 10/22/08: Charge collector arrives at ISU (No output connectors so I had to send it back) 10/23/08: Kathleen sends e-mail to Tony asking for requisition because MRI has expired and the GEM detector needs to be billed to the grant. 10/30/08: Kathleen sends e-mail requesting that the chambers be sent so a property tag can be placed on it 11/6/08 : after several exchanges a final invoice version (#5?) is sent to LaTech 11/19/08: Tony reports construction complete at Qweak collaboration meeting. Detector testing need to be done but due to LaTech's grant emergency only a HV test was completed. 11/24/08: 2 Qweak GEM detectors arrive at LaTex according to FedEx tracking.

1/12-15/08: Tony sends Greg 1/4 report suggesting that communication take place concerning the last R1 milestone delay 1/19/09: Klaus tells Greg that the last R1 milestone is delayed from March, 09 until Oct. 09. Tony has no idea where this number comes from and was never contacted for discussion. 1/20/09: Klaus submits critic of GEm construction to Greg Smith and the R1 work package leader 1/21/09: Greg e-mails an evaluation of Klaus' critics by an outside expert, expert does not find any tangible problems 1/23/09: ~2 hour phone conference

summary

The teleconference concluded without identifying any problems with the GEM detectors that need to be corrected

a considerable amount of time was spend on gas leak tests. Latech did not seem to accept the outside experts opinion regarding chamber gas leaks and will try to perform a leak test measurement. it is important to consider that the charge collector is the only critical component which cannot be damaged. The charge collector has a thin gold coating to reduce the impact of Ozone and H2O. The GEM preamps and cathodes are easy to replace or repair (less than 1 day. Klaus should make detector attachement system which allows easy and fast detector removal.

Latech urgency for detector delivery prevented most tests except for a HV test. Latech said they would return a detector next week. as part of the original plan back in November, next

Some time was spent discussing the electronics readout. Steve ansswered Kathleen's questions requarding readout electronics game plan. Latech will look into a backup plan involving the BONUS's RPC chambers readout electronics.