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Stony Brook HBD Production. TKH for the Stony Brook Crew. Glove Box is here and installed. 0.6 ppm water. No oxygen sensor. Operating the Airlock Door. Is this why he won best animation at Hot Quarks?. Csi Operations-I Evaporation. 4 GEMs installed into evaporator.
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Stony Brook HBD Production TKH for the Stony Brook Crew
Glove Box is here and installed. • 0.6 ppm water. • No oxygen sensor.
Operating the Airlock Door. • Is this why he won best animation at Hot Quarks?
Csi Operations-I Evaporation. • 4 GEMs installed into evaporator. • HV continuity test in air. • Leads “secured” in housing. • Pump overnight, shoot morning. • System reliable and reproducible. • Repaired pump back and running well. • Local QE test in afternoon. • Use fewer reference PMT measurements. • ~3-4 X-passes (perp. to strips) on each GEM. • EvaporatorAirlockGlove Box. 2 Days to make a 4-GEM Evaporation
CsI Operations-II Testing. • Triple stack placed in WIS test vessel. • Each CsI GEM mated with its final partners • Full stack including grid in test box. • 100 V “continuity test” for every strip. • Pump box (quicker & better than purge). • Back-Fill with Ar-CO2 • Back fill fine for gain tests (vs. flow). • CF4 quite expensive. • Direct HV test on individual GEM (by hand) • 55Fe using resistor chain. • Leave at operating voltage several hours. 2 GEM-stacks/day. 2 Days total.
CsI Operations-III Installation. • In parallel with test box operation. • Each stack goes directly from test box to HBD. • Install stack in next HBD location: • 100 V continuity test repeated. • Double-check connection via GEM capacitance. In parallel with GEM testing.
Summary • 4 days for a 100% trouble free cycle. • Assume three days contingency to correct any and all troubles: • 1 week per 4 installed GEMs. • 3 weeks for full arm. • 1 additional week for testing assembled device. • One month/arm is a comfortable schedule.