2022/01/11 (Tuesday)
- Lab in-personnel: Matt
| Status | Run 75 in progress |
|---|---|
| Setup | Tower Faces 5/3/2 → Cables 2/1/3 → nothing/diverter_board/nothing → DCRC55(1)/DCRC50(3)/DCRCx(4) Lead shield in place. Am Source y = 20.01 mm |
| 1020 | Goldman = 41.8 mK, flat overnight |
| 0955 | Adjust DCRC3pC driver offset so that IbIs peak (QET bias around 250) is near top of output scale (around 1V). |
| 0957 | Start automated IbIs on DCRC3pC. 450 to 150 uA step -2. |
| 1000 | Goldman = 41.8 mK |
| 1035 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1040 | Restart DAQ programs with only DCRC4 enabled |
| 1050 | Adjust DCRC4pA driver offset so that IbIs peak (QET bias around 250) is near top of output scale (around 1V). |
| 1052 | Start automated IbIs on DCRC4pA. 450 to 150 uA step -2. |
| OOPS - forgot to change sequence to DCRC4. So this data is junk. | |
| 1052 | Goldman = 41.8 mK |
| 1130 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1136 | Start automated IbIs on DCRC4pA. 450 to 150 uA step -2. |
| 1136 | Goldman = 41.7 mK |
| 1220 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1225 | Adjust DCRC4pB driver offset so that IbIs peak (QET bias around 190) is near top of output scale (around 1V). |
| 1228 | Start automated IbIs on DCRC4pB. 400 to 100 uA step -2. |
| 1230 | Goldman = 41.7 mK |
| 1310 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1315 | Adjust DCRC4pC driver offset so that IbIs peak (QET bias around 340) is near top of output scale (around 1V). |
| 1317 | Start automated IbIs on DCRC4pC. 500 to 200 uA step -2. |
| 1317 | Goldman = 41.8 mK |
| 1345 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1350 | Adjust DCRC4pD driver offset so that IbIs peak (QET bias around 230) is near top of output scale (around 1V). |
| 1355 | Start automated IbIs on DCRC4pD. 400 to 100 uA step -2. ← ABORTED, data deleted |
| 1356 | Goldman = 42.0 mK, cooling from a small spike |
| 1420 | Goldman/Tower/MC(H35)/Coldplate = 41.8/75.9/35.8/182 mK, Still = 1.42 K / 0.110 mbar / 0 mW, G1/G2= 248/235 mbar, 1K Pot = 1.61 K / 16±1 mbar, MB = 64.9%. |
| 1425 | Fill LN2 cold trap bath |
| 1425 | MIDAS browser interface is unresponsive and the last data series written was at 14:04. Looks like MIDAS crashed. |
| 1430 | Restarted MIDAS. Tried restarting sequencer which was stuck - it started over then got stuck again, because Run Start was stuck in a transitional mode. |
| 1430 | Deleted the raw data files in /livedata, we'll start over. |
| 1432 | Start automated IbIs on DCRC4pD. 400 to 100 uA step -2. |
| 1433 | Goldman = 42.3 mK, Unfortunately it looks like it's warming a bit after the LN2 fill. Sequence ended at around 42.1 mK |
| 1545 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| 1630 | DCRC3pC lost lock during IbIs (big shift during the transition sweep) so I wanna redo it. Did some manual QET bias adjustment, saw the same shift, it may now be in a more stable lock point. We'll try again. |
| 1635 | Adjust DCRC3pC driver offset so that IbIs peak (QET bias around 250) is near top of output scale (around 1V). |
| 1640 | Start automated IbIs on DCRC3pC. 450 to 150 uA step -2. |
| 1640 | Goldman = 42.2 mK |
| 1745 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |
| DCRC1pC also lost lock during IbIs, let's redo it too. | |
| 2040 | Adjust DCRC1pC driver offset so that IbIs peak (QET bias around 330) is near top of output scale (around 1V). |
| 2045 | Start automated IbIs on DCRC1pC. 500 to 200 uA step -2. |
| 2045 | Goldman = 42.3 mK |
| 1020 | Make new directory in /byseries and move the QB_scan files from /livedata to the new directory. |