| Status | Run 76 in progress |
| Setup | Cable 2/1/3 → diverter/nothing/nothing → DCRC50(3)/DCRC55(1)/DCRCX(4), NaI trigger signal → DCRC52(6) |
| 1105 | MC/Coldplate = 28.7/140 mK, Still = 1.11 K / 0.120 mbar / 0 mW, G1/G2= 176/170 mbar, 1K Pot = 18° / 1.63 K / 21±2 mbar, MB = 37.9%. |
| 1105 | Goldman = 71.1 mK @ 632 uV excitation |
| 1110 | Fill LN2 cold trap bath |
| 1540 | Begin LHe transfer @ MB = 31.4% |
| 1600 | Remove the Side2-readout board from the HV box case and put the Side1-readout HV board into the case. |
| 1617 | End LHe transfer @ MB = 89.5% |
| | Note: this is the third transfer since we began trying to conserve He better. The first two were done with 100L Dewars - this one with the 250L Dewar. At the end of the transfer as per the new procedure we raised both ends of the transfer line and let it sit for the pressure to fall. But I probably need to wait longer with the 250L Dewar - I only waited about 5 minutes, and the pressure was still quite high. And the final bath level was lower than the last couple times. |
| 1625 | Stop DAQ programs and power down all 3 DCRCs |
| 1635 | MC temperature falling after powering down the DCRCs, currently 27.3 mK and falling. |
| 1655 | MC = 26.5 mK, still cooling |
| 1655 | Connect Cables 2/1/3 → diverter_board/nothing/nothing → HV CONN1/2/3. |
| 1700 | Connect DCRC1/3 to HV Output 1/2. |
| 1705 | MC = 26.3 mK. Goldman = 69.1 mK @ 632 uV excitation |