2019/06/22 (Saturday)
| Setup | DIB1/3/4 → 3.2 MHz filters 2/3/1 → cable 3/1/2 → gender changer ?/3/2 → HVConn 1/3/2 → HV 1/2 → DCRCX(4)/DCRC55(1) DCRC33(2) → 1kV power supply → HV input Three walls of the lead/poly shield are up. |
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| 0956 | Start an 88 min series at HV = 180→400V, rate 2.49V/min, with 10% prebias for 2 minutes, flash at end with 30 min wait. CDMS detector: Driver Gains = 1x, DCRC4/1 QET biases = (490/400/490)/(420/480/450) uA, Front-End Gains = (2/2/3)/(5/5/5) 1000 BOR, 5Hz InRun randoms, trigger on DCRC1pB/C/D threshold = 8/8/8. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 1410 | There was a DAQ crash. Sequence is stuck. HV = 179 V - looks like it may have crashed during the rampup. Looks like everything is running except mhttpd. Do a ./start. MIDAS webpage restarts and sequence starts where it left off, right at the beginning of data. Abort series and kill sequence. Manually dial down HV to 0V then flash for 30 seconds |
| 1420 | Tower/MC/Coldplate = 40.5/30.9/202 mK, Still = 1.31 K / 0.090 mbar, G1/G2 = 152/144 mbar, 1K Pot = 1.63 K / 20 mbar. MB = 22.4% |
| 1425 | Fill LN2 cold trap bath |
| 1440 | Begin LHe transfer at 22.3% |
| 1518 | End LHe Transfer at 93.1% |
| 1536 | Start an 88 min series at HV = 180→400V, rate 2.49V/min, with 10% prebias for 2 minutes, flash at end with 30 min wait. CDMS detector: Driver Gains = 1x, DCRC4/1 QET biases = (490/400/490)/(420/480/450) uA, Front-End Gains = (2/2/3)/(5/5/5) 1000 BOR, 5Hz InRun randoms, trigger on DCRC1pB/C/D threshold = 8/8/8. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 1822 | Start an 88 min series at HV = 180→400V, rate 2.49V/min, with 10% prebias for 2 minutes, flash at end with 30 min wait. CDMS detector: Driver Gains = 1x, DCRC4/1 QET biases = (490/400/490)/(420/480/450) uA, Front-End Gains = (2/2/3)/(5/5/5) 1000 BOR, 5Hz InRun randoms, trigger on DCRC1pB/C/D threshold = 8/8/8. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 2102 | Start an 88 min series at HV = 180→400V, rate 2.49V/min, with 10% prebias for 2 minutes, flash at end with 30 min wait. CDMS detector: Driver Gains = 1x, DCRC4/1 QET biases = (490/400/490)/(420/480/450) uA, Front-End Gains = (2/2/3)/(5/5/5) 1000 BOR, 5Hz InRun randoms, trigger on DCRC1pB/C/D threshold = 8/8/8. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 2333 | Start an 88 min series at HV = 180→400V, rate 2.49V/min, with 10% prebias for 2 minutes, flash at end with 30 min wait. CDMS detector: Driver Gains = 1x, DCRC4/1 QET biases = (490/400/490)/(420/480/450) uA, Front-End Gains = (2/2/3)/(5/5/5) 1000 BOR, 5Hz InRun randoms, trigger on DCRC1pB/C/D threshold = 8/8/8. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |