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2023/10/02 (Monday)

Previous Day

  • Lab in-personnel: Himangshu, Zach
Run 78 Tower Electrical Checkout
Device Label Unit Value
Face5pA Side1pE Ω 326.1
Face5pB Side1pF Ω 404.9
Face5pC Side1pA Ω 97.5
Face5pD Side2pE Ω 318.7
Face5pA-pB same side inter kΩ 0.855
Face5pA-pC same side inter kΩ 0.675
Face5pA-pD opp side inter kΩ 2.112
Face5pB-pC same side inter Ω 510
Face5pB-pD opp side inter kΩ 2.035
Face5pC-pD opp side inter kΩ 1.872
Face5LED1 pin-to-chassis V 1.068
Face5LED2 pin-to-chassis V 1.639
Face3pA Side2pC Ω 375.4
Face3pB Side2pF Ω 513.6
Face3pC Side1pC Ω 436.6
Face3pD Side1pD Ω 401.9
Face3pA-pB same side inter kΩ 1.707
Face3pA-pC opp side inter kΩ 2.552
Face3pA-pD opp side inter kΩ 2.279
Face3pB-pC opp side inter kΩ 2.626
Face3pB-pD opp side inter kΩ 2.341
Face3pC-pD same side inter kΩ 1.383
Face2pA Side2pB Ω 140.5
Face2pB Side2pA Ω 87.0
Face2pC Side1pB Ω 144.4
Face2pD Side2pD Ω 386.7
Face2pA-pB same side inter kΩ 0.734
Face2pA-pC opp side inter kΩ 1.654
Face2pA-pD same side inter kΩ 1.179
Face2pB-pC opp side inter kΩ 1.789
Face2pB-pD same side inter kΩ 1.462
Face2pC-pD opp side inter kΩ 1.927
Face2pA-chassis detector shorts Ω
Face6 1-2 Motor CoilY 1-2 kΩ 113
Face6 3-4 Motor CoilY 3-4 kΩ 112.7
Face66-7 Motor CoilX 3-4 kΩ 111.8
Face6 8_9 Motor CoilX 3-4 kΩ 110.5
Face6 6-chassis Near Endstop kΩ 5.685
Face6 7-chassis Far Endstop kΩ 22.48
Face6 12-13 Rox kΩ 1.072
1146 Tower assembly complete
1425 Tower orientation: Face 6 towards East(Stripline)
Finish bolts attaching 30mK adapter to 30mK can and torque them.
Put cap on bottom hole of Tower.
Attach Outer first, then inner shield piece. We use medium-sized screws for the heatsinks outer screw-holes, longer screws for inner screwholes of heatsinks and short screws for other screwholes to complete the 100mK shield. Completed installing shields for the 100mK Can.
1607 Check contents of warm LN2 Trap 1: 20.8 mbar. Pump it out with the scroll pump.
1610 G1 = 2.6 mbar and stable, stop pumping on trap 1.
1612 Insert cold trap 1 into the LN2 bath, fill bath
1613 Begin cryocleaning through cold trap 1 following procedure Cryo-Clean Mixture
1613 Turn on the 3He pump
I think the 3He pump is still relatively noisy, should look into adding oil? or whatever needs to be done to maintain it
1616 Open V6 to 11%
1620 Open V6 to 11.9% to restart flow
1624 Open V6 to 12.1% to restart flow
1649 Open V6 to 12.2% to restart flow
1725 Open V6 to 12.3% to restart flow
1745 Stop cryocleaning through cold trap 1, pump mixture to dump
1800 G1 = 1.6, P1 =.022 mbar, close all valves, leaving 713.0 mbar in the dump
1805 Turn off 3He pump and pull cold trap 1 out of the LN2 bath

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