| | Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50 |
| | Taking Y-Be data overnight, last flash ~ 6:55. |
| 0845 | Remove Y source from fridge. |
| 0850 | Tower/MC(H35)/MC sensor/Cold Plate = 31.7/27.9/42/164 mK, Still = 1.28 K / 0.085 mbar, G1/G2 = 125/145 mbar, 1K Pot = 1.52 K / 2.6 mbar, Main bath = 71.8% |
| 0855 | Tweak 1K Pot needle valve open additional 5 degrees. |
| 0900 | Fill LN2 cold trap Dewar. |
| 1305 | Check phonon pulses. All good. |
| 1306 | Start test background series with standard setup at 0/0 V with FG=5/2/5, OG=3, with 1000 initial randoms, 0 ending randoms, no flash. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Stop after initial randoms are done. |
| 1310 | Unpower DCRC33 and DCRC50, so only DIB1 (DCRC55) is powered. Disable DIBs 2&3 in ODB so we can take data with just DIB1. Check phonon traces. All good. |
| 1313 | Start test background series with standard setup with only DIB1(DCRC55) powered at 0/0 V with FG=5/2/5, OG=3, with 1000 initial randoms, 0 ending randoms, no flash. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Stop after initial randoms are done. |
| 1315 | Detach DSUB pi-filter connector from DIB2 (DCRC33), attach pi-filter switchboard with all filters switched on, and repower all DCRCs. Zap SQUIDs. |
| 1507 | After several MIDAS tests, get back to business. Check the phonon traces, several railed, so adjust driver offsets. |
| 1515 | Start test background series with pi-filter switchboard on DIB2 with all filters switched on at 0/0 V with FG=5/2/5, OG=3, with 1000 initial randoms, 0 ending randoms, no flash. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Stop after initial randoms are done. |
| 1520 | Unpower DCRC33, switch off all lines on pi-filter switchboard, so no lines are being filtered, reattach board to DCRC33 and repower DCRC33. Zap SQUIDs. |
| 1540 | Some phonon lines railed. Adjust Driver Offsets. Strong jagged ~4KHz noise visible on DIB1 pC. |
| 1545 | Start test background series with pi-filter switchboard on DIB2 with all filters switched off at 0/0 V with FG=5/2/5, OG=3, with 1000 initial randoms, 0 ending randoms, no flash. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Stop after initial randoms are done. |
| 1559 | Power off DCRC33, detach pi-filter switchboard, switch of filters for any non-phonon channels, so that the only channels not filtered are pins: 42, 26, 11, 27, 12, 30, 15, 31, 16, 50, 45, 46, 49. Repower DCRC33 and zap SQUIDs. |
| 1610 | 1K Pot has fallen to 2.0 mbar, tweak needle valve open additional 5 degrees |
| 1700 | After more MIDAS tests, let's get back to it: check phonon channels. DIB3 pD railed. Adjust Driver Offset, all good. |
| 1705 | Start test background series with pi-filter switchboard on DIB2 with all phonon related lines filtered at 0/0 V with FG=5/2/5, OG=3, with 1000 initial randoms, 0 ending randoms, no flash. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Stop after initial randoms are done. |
| 1710 | Unpower DCRC33, detach pi-filter switchboard, reattach DSUB pi-filter connector to DCRC33 and repower DCRC33. Zap SQUIDs. |
| 1725 | Check phonon traces. DIB2 pD, DIB3 pA & pD railed. Adjust Driver Offsets, and all's well that ends well. |
| 1727 | Fill LN2 cold trap full. |
| 1845 | Place Strong 88-Y source inside Be disc sourceholder. |
| | Start 22 hours of 30min Y-Be series at -4/+4 V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, with 30s flash and 25 minute cooldown in between series. Trigger on DIB1 phA with threshold of 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. |