1 Update from the Tent Thomas K Hemmick for the Tent People.

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Presentation transcript:

1 Update from the Tent Thomas K Hemmick for the Tent People

2 GEMs in the house. First shipment excellent from 5/6 sides. Some dust visible from bottom. GEMs now in vacuum storage. –Heavy initial out-gassing. OVERNIGHT to get below 1x10 -4 torr. 2 days until torr. –Second pump down into range in 2 hours. Sorting task from database now done. –See Anne Sickles talk. Looking forward to getting more. –See Ilia’s talk.

3 Last week Railroad Success Railroad system transports cathodes from evaporator into glove box. System complete and tested in dry run last week. NOTE: Summer students have arrived BillJason GabbyBen MattGreg Ben-II

4 Gain box installed interior to Glovebox Gain test box now installed into glovebox. –BigMac feed-throughs –Added MgF 2 window. –Fresh He leak test (1 fixed). –Pump via diaphragm/sorption See 55 Fe today. Ready for full dry run. Rich Tom

5 HBD Support Cage Ready Cage test fit through removable window. Yup, it fits! Looking good for HBD vessel delivery.

6 Single pad gain vs time tests. Top GEM was previously coated w/ CsI & cleaned. Full gain reached after ~1 day. Rate of approach to full gain depends upon rate of source. Question: Could pad13 be full gain due to source and other pads not yet saturated?

7 Tests with CsI on the pads Same set of GEMS. CsI added. Test 4 different pads. All similar behavior…