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2025/09/30 (Monday)

Previous Day

  • Lab in-personnel: Himangshu
– Swapping and Reswapping things seem to have fixed the short yesterday. Installed all SQUETS and rechecking it today to start pumping on the IVC
1100 Meeting with Elliott to discuss plans for the DMC study.
1200 Electrical check on all three cables with IVC open
1220 Electrical check of ZC-70+interposer , Stripline 41 on Tower Face 5
Cooldown checkout sheet (rev C SQUET)
Detector: S104 Stripline 41
SC: none 300 K 300 K
Face: 5 Date 09/30/2025
SQUET: ZC-70 Cable 2
Signal Pos. lead Gnd lead Nominal Actual Chassis
(Gnd lead)
Nominal:
< 0.1 nS
SQUID bias A/Ret 4 20 3 - 5 k — k OK
SQUID bias B/Ret 19 34 4.36 k OK
SQUID bias C/Ret 8 24 4.54 k OK
SQUID bias D/Ret 23 39 5.01 k OK
Feedback A/Ret 37 21 15 - 25 k — k OK
Feedback B/Ret 2 18 25.03 k OK
Feedback C/Ret 41 25 28.00 k OK
Feedback D/Ret 22 6 34.05 k OK
QET A/Ret 3 1, 13, 14, 17, 32 60 - 80 OL,79.9,OL, OL, OL OK
QET B/Ret 35 29, 33, 47, 48 77.3, 77.7, OL, OL OK
QET C/Ret 7 5, 9, 10, 28 78.9, 77.9, OL, OL OK
QET D/Ret 38 36, 40, 43, 44 79.2, 79.2, OL, OL OK
QET A/QET B 3 35 1000-3000 729 ohm
QET A/QET C 3 7 755
QET A/QET D 3 38 1883
QET B/QET C 35 7 240
QET B/QET D 35 38 1629
QET C/QET D 7 38 1652
LED 1 chassis 42 1.0 - 1.1 V –
LED 2 chassis 26 2.29
Motor Coil X1 pBr3 pBr4 185.8
Motor Coil X2 pCr3 pCr4 170.3
Motor Coil Y1 pBr3 pBr4 204.8
Motor Coil Y2 pCr3 pCr4 193.3
Near Endstop pAr3 chassis open
Far Endstop pAr4 chassis open

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