2016/03/01 (Tuesday)
| Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50 | |
| Taking rate test data with Ba source present overnight, still going (until 10:00 I think). Coming down off of a flash at 08:55 | |
| 0910 | Tower/MC(H35)/MC sensor/Cold Plate = 31.5/27.7/41/156 mK, Still = 1.17 K / 0.090 mbar, G1/G2 = 130/115 mbar, 1K Pot = 1.56 K / 3.6 mbar, Main bath = 41.4% |
| 0920 | Fill LN2 cold trap Dewar |
| 0955 | Place Ba source back in safe. |
| 1005 | Unpower DCRCs, detach DSUB pi-filter connectors, attach pi-filter switchboards with all switches turned ON, repower DCRCs. Zap SQUIDs. |
| 1045 | The mystery of the less-powerful zaps has been solved. After the overnight rate tests, it looks like DCRCs 2&3 are disabled in the ODB. This was discovered after attempting to view pulses on DIBs 2&3. They would not show in the pulse viewer. Enable DCRCs 2&3 and attempt to view pulses. Booya. |
| 1125 | Perform mini IbIs on all three DIBs with all lines on pi-filter switchboard switched ON. Unpower DCRCs, change pi-filter switchboards so only phonon channels are filtered (the only channels not filtered are pins: 42, 26, 11, 27, 12, 30, 15, 31, 16, 50, 45, 46, 49). Repower DCRCs. Zap SQUIDs. Reestablish timing link. |
| 1215 | Perform mini IbIs on all three DIBs with all phonon lines on pi-filter switchboards switched ON. Unpower DCRCs, change pi-filter switchboards so only Charge channels are filtered (Switches: 11, 27, 12, 30, 15, 31, 16, 50). Repower DCRCs. Zap SQUIDs. Reestablish timing link. |
| 1320 | Perform mini IbIs on all three DIBs with all Charge lines on pi-filter switchboards switched ON. Unpower DCRCs. |
| 1400 | Switch pins so that charge-related pins are only ones NOT on, i.e. phonon & LED & FET on. Reconnect boards to DCRCs, repower boards. Zap SQUIDs. Reestablish timing link. |
| 1510 | Perform mini IbIs on all three DIBs with all lines EXCEPT CHARGE on pi-filter switchboards switched ON. Unpower DCRCs, change pi-filter switchboards so only Qi&Qo Bias lines are also filtered (Switches: 11 & 15 in addition to all Phonon, FET, and LED lines). Repower DCRCs. Zap SQUIDs. Reestablish timing link. |
| 1600 | Perform mini IbIs on all three DIBs with all Phonon, FET, LED and QBias lines on pi-filter switchboards switched ON. Unpower DCRCs. |
| 1615 | Commence LHe transfer (31.6%). |
| 1630 | Switch on filters on Q drain lines, 16 and 12. Repower DCRCs. Zap SQUIDS. |
| 1650 | Cease LHe transfer (91.1%). |
| 1705 | Release pressure from Main Bath. |
| 1722 | Perform mini IbIs on all three DIBs with all Phonon, FET, LED, QBias, and QDrain lines on pi-filter switchboards switched ON. Unpower DCRCs. Switch on filters for Q Source lines (switches 27,31). On DIB1 it was noticed that Switch 31 had already been turned on, and Switch 45 (FET heater +), which should have been on was turned off. This means we were NOT filtering DIB1's FET Heater + line for the previous mini IbIs tests since presumably the 1510 run. |
| 1735 | Fill LN2 cold trap full. |
Spreadsheet of Mini-IbIs data