| | Setup: DIB1/3/4 → SL 27/19/20 → 3.2 MHz filters → cables 2,1,3 → HV board inputs 1,3,2 → HV board outputs 1,2 → DCRC55(1)/50(3). Also DCRC4 is powered and hooked up to control the HV setting. |
| 0905 | Tower/MC/Coldplate = 23.4/25.6/153 mK, Still = 1.4 K / 0.110 mbar, G1/G2 = 250/234 mbar, 1K Pot = 1.64 K / 34 mbar, MB = 34.5% |
| 0910 | Fill LN2 cold trap full. |
| 0943 | Use PulseViewer to view traces while adjusting driver offsets with DCRCcontrol GUI. |
| 0945 | Restart MIDAS in preparation for IBIS scan. |
| 0946 | Let's prebias for 5 min. Turn on power supply with DCRC4QObias = 2V. Slowly ramp up to 52 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 52.56/5.2 V |
| 0954 | Slowly ramp down to 45 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 45.07/5.99 V |
| 0956 | Begin IbIs data sequence on DCRC1pC with HV=45V from 650 to 400 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC1pC.msl) |
| | Data looks OK. |
| 1046 | Sequence completed. HV = 44.97 V, V_leak = 1.83 mV |
| 1047 | Slowly ramp bias down to 0V and turn off power supply. |
| 1048 | Flash for 30s using flashandflash GUI. |
| 1130 | Tower was at 22.4 mK before flash, peaked at 476 mK, fell to 29 mK in 10 min, 24.5 mK in 20 min |
| 1223 | Tower = 22.8 mK |
| 1227 | Prebias for 5 min. Turn on power supply with DCRC4QObias = 2V. Slowly ramp up to 52 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 52.51/5.2 V |
| 1234 | Slowly ramp down to 45 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 45.01/5.99 V |
| 1238 | Begin IbIs data sequence on DCRC3pB with HV=45V from 750 to 400 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC3pB.msl) Note:Forgot to reset MIDAS this time. |
| 1340 | Sequence is stuck at 419 uA. MIDAS web page is stuck. |
| 1345 | Kill and restart MIDAS, start DAQ programs |
| 1350 | HV = 44.98 V, V_leak = 1.66 mV |
| 1350 | Slowly ramp bias down to 0V and turn off power supply. |
| 1355 | Flash for 30s using flashandflash GUI. |
| 1407 | Start LHe transfer @ MB = 26.7% |
| 1507 | Finish LHe transfer @ MB = 90.4% |
| 1525 | Tower = 23.4 mK |
| 1540 | Adjust all six Driver Offsets to get baselines around 0.8 V |
| 1545 | Prebias for 5 min: Turn on power supply with DCRC4QObias = 2V. Slowly ramp up to 52 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 52.51/5.2 V |
| 1555 | Slowly ramp down to 45 V at 1V/sec by changing DCRC4/Charge/Bias (V)[0] by 0.1 V/sec by hand in the ODB. HV/DCRC4QI = 45.02/5.99 V |
| | We'll redo DCRC1pB IbIs because the first time we did this one at 45 V it failed. |
| 1601 | Begin IbIs data sequence on DCRC1pB with HV=45V from 600 to 300 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC1pB.msl) |
| | Series continued to completion. Data looks OK. |
| 1935 | HV = 44.99 V, V_leak = 1.53 mV |
| 2003 | HV = 44.99 V, V_leak = 1.51 mV |
| 2004 | Slowly ramp bias down to 0V and turn off power supply. |
| 2009 | Flash for 30s using flashandflash GUI. |
| 2025 | Temp monitoring webpage is suddenly showing weird temp values for the last 12 hours. Looks like ssh/sftp to vuk-01 aren't working properly right now and it's plotting old data. Not sure why. |