2017/05/22 (Monday)
| 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 |
|
| Took NaI-triggered data overnight @50V. Last series started at 00:26. Data looks ok. | |
| 0915 | Tower/MC/Coldplate = 32.9/29.4/193 mK, Still = 1.25 K / 0.110 mbar, G1/G2 = 220/210 mbar, 1K Pot = 1.684 K / 26.0 mbar. Main Bath = 64.7%. |
| 0915 | HV = 51.38 V, Vtest = 2.59 mV → Vdetector = 50.33 V |
| 0925 | Fill LN2 cold trap bath. |
| 0930 | Dial HV down to zero. Then short the leads. |
| 1005 | Begin 60 minute bake with DCRCs 1&2 |
| 1030 | Remove PuBe source from the lab, return to 4th floor storage. |
| 1340 | While setting up for IbIs on DCRC2 noticed that again there seems to be the problem that the driver gain settings aren't working correctly for a RevC board. Simply shutting down the DAQ programs then restarting them seems to have fixed it. |
| 1410 | Finish IbIs on DCRC2pB/DIB3pC/Side1pA |
| 1430 | Having trouble with DCRC2pC. Seems to be in a strange state where it won't go into transition (no pulses) and needs large driver offset. Turn off DAQ programs then power cycle DCRC2. |
| 1440 | Zap SQUIDs on DCRC2 |
| 1510 | DCRC2pC still seemed messed up after the zap. Tried pushing in on the cable connectors - that seems to have fixed it. |
| 1540 | Finish IbIs on DCRC2pC/DIB4pC/Side1pC |
| 1615 | Finish IbIs on DCRC2pD/DIB4pD/Side1pF |
| 1700 | Fill LN2 cold trap bath |