2017/05/21 (Sunday)
| Setup: DIB1/3/4 → 3.2 MHz filters 3/1/2 → cable 3/1/2 →gender changer 3/1/2 → HVConn 1/3/2 → HV 1/2 → DCRC55/DCRC33 | |
| PuBe source in paraffin barrel behind shield (west side) Na-22 source hanging along southeast column of fridge stand |
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| 1107 | Took NaI-triggered data overnight @50V. Midas web interface is down |
| 1111 | Tower/MC/Coldplate = 33.0/30.7/191 mK, Still = 1.28 K / 0.110 mbar, G1/G2 = 222/214 mbar, 1K Pot = 1.669 K / 20.0 mbar. Main Bath = 30.1%. |
| 1115 | Restart DAQ with ./start_daq_umn.sh. The web interface is back up. It says the most recent series (6620) started at 0758 this morning and ended at 1114 (when I restarted the daq). The most recent raw series on disk dump is 07170521_0758, which has 27 dumps. Looking at the most recent dumps, it seems all channels were intact(despite what I told Anthony on the phone this morning). |
| 1118 | Fill LN2 cold trap. Tweak 1K pot needle valve |
| 1123 | HV=51.4 V, Vtest=4.06 mV → Vtrue=49.8 V |
| 1135 | Begin LHe transfer, MB=30.1% |
| 1143 | Reduce HV =0 V. Begin 1 hour bake. |
| 1219 | Cease LHe transfer, MB=90.3% |
| 1249 | Bake complete, pre-bias to HV=65V |
| 1304 | Reduce HV=55.0 V, settles at Vtest=4.14mV → Vtrue=53.34V |
| 1314 | Reduce HV=51.8 V, Vtest=3.52 → Vtrue=50.39 V |
| 1318 | Tower temp back to 34.3mK, set driver offsets |
| 1321 | Reduce HV=51.37 V, Vtest=3.42 → Vtrue=50.0 V :) |
| 1324 | Start 12 1-hour data series of 1-sided 50V HV coincidence data with Frontend Gain = (15/15/5)/(3/4/4), OG = 4/2, QET biases = table from Apr 28, with 1000 beginning randoms, no flashing, and a 500ADC bin threshold trigger on DCRC4 pA (external trigger). Running OR trigger of NaI detectors with PuBe source on west side of shield. NaI detector C has 311 mV threshold and detector B has 288 mV threshold |
| 1644 | Realize logging had not been enabled, turn it on in ODB. |