2019/06/23 (Sunday)
| 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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| 0205 | Apparently at this time, the fridge computer spa-vuk1 rebooted, because the LabVIEW vi's stopped. |
| 0518 | 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 |
| Let's try some lower-trigger-threshold data, for a better chance of seeing the 0.16 keV line | |
| 0927 | 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 = 7/7/7. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 1200 | Restart fridge vi's after spa-vuk01 reboot this morning. |
| 1430 | Fill LN2 cold trap bath |
| 1500 | Tower/MC/Coldplate = 40/32.4/199 mK, Still = 1.27 K / 0.09 mbar, G1/G2 = 151.4/152.1 mbar, 1K Pot = 1.62 K / 19 mbar. MB = 63.3% |
| 1501 | 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 = 7/7/7. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| DCRC1pB&C were railed for this entire series | |
| 1825 | Get the channels relocked and adjusted. |
| 1829 | 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 = 7/7/7. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |
| 2000 | It doesn't look like data is being written to /midasraw/byseries. Don't see dumps in /midasraw/livedata either. But it looks like everything is running. Not sure what's wrong. |
| 2005 | Checking /midasraw/livedata/midas.log things definitely look wrong. In the last series you'd see lazy_logger messages interspersed with the HV updates, but now there's nothing. Also strange that no dumps seem to be showing up in /midasraw/livedata. It's as if the logger is off, but ODB says it's on. Well, I'll let this sequence finish then do some tests. |
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| note the zeros on the bottom, and the fact that the run number doesn't match the current run. pretty sure that's not normal |
| 2020 | Start a test series now that the data series has stopped - sequence is still going, ramping down the HV. Looks like there are now correct things in the “Logging Channels” box: “Events”, “MB written”, and “Compr” are non-zero and updating, and the run number matches the current run. And a raw data directory is present in /midasraw/byseries. Looks ok. Not sure what happened with the last sequence. Stop this test series after 4 minutes. |
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| 2113 | 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 = 7/7/7. Use sequence HVdrift_180V_cal0612_2p49VPM_prebias_10_2_dur_88min_flashDCRC_1_4.msl |