UMN CDMS Wiki archive
start › cdms › k100 › run_diary › 20230130

2023/01/30 (Monday)

Previous Day

  • Lab in-personnel: Himangshu, Zach, Ping
Status Run 77 preparation
Setup Fridge closed, pumping on IVC, preparing for cooldown
1230 Doing electrical check of all the SQUETS after closing the IVC on Friday. This is a second check to make sure the SQUET connection didn't get loose over time.
1232 Electrical check of ZC-31 after connecting to Stripline 41 on Tower Face 5 with Cable 2
Detector: S104 Stripline 41
SC: none 300 K
Face: 5 Date 1/30/2023
SQUET: ZC-31 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 4.224 k OK
SQUID bias B/Ret 19 34 4.041 k OK
SQUID bias C/Ret 8 24 4.500 k OK
SQUID bias D/Ret 23 39 4.064 k OK
Feedback A/Ret 37 21 15 - 25 k 26.51 k OK
Feedback B/Ret 2 18 26.11 k OK
Feedback C/Ret 41 25 27.98 k OK
Feedback D/Ret 22 6 26.75 k OK
QET A/Ret 3 1, 13, 14, 17, 32 60 - 80 OL,78,OL, OL, OL OK
QET B/Ret 35 29, 33, 47, 48 88, 88, OL, OL OK
QET C/Ret 7 5, 9, 10, 28 81, 76, OL, OL OK
QET D/Ret 38 36, 40, 43, 44 72, 72, OL, OL OK
QET A/QET B 3 35 1000-3000 594
QET A/QET C 3 7 772
QET A/QET D 3 38 2163
QET B/QET C 35 7 523
QET B/QET D 35 38 1985
QET C/QET D 7 38 1924
LED 1 chassis 42 1.0 - 1.1 V 1.105
LED 2 chassis 26 1.66
Motor Coil Y1 169 139
Motor Coil Y2 169 159
Thermometer Pin1- Pin3 1k -
Thermometer Pin2- Pin4 1k 1097

Note: Thermometer Pin 3 seems to be open. The solution will be to make a connection between Pin 3 and Pin 4 to read it with the Lakeshore Bridge.

1241 Electrical check of ZC-26 after connecting to Stripline 43 on Tower Face 2 on Cable 3
Detector: S104 Stripline 43
SC: none 300 K
Face: 2 Date 1/30/2023
SQUET: ZC-26 Cable 3
Signal Pos. lead Gnd lead Nominal Actual Chassis
(Gnd lead)
Nominal:
< 0.1 nS
SQUID bias A/Ret 4 20 3 - 5 k 4.711 k OK
SQUID bias B/Ret 19 34 4.008 k OK
SQUID bias C/Ret 8 24 3.508 k OK
SQUID bias D/Ret 23 39 410 k NOT OK
Feedback A/Ret 37 21 15 - 25 k 1.092 k OK
Feedback B/Ret 2 18 16.73 k OK
Feedback C/Ret 41 25 21.17 k OK
Feedback D/Ret 22 6 20.57 k OK
QET A/Ret 3 1, 13, 14, 17, 32 60 - 80 201, 119, 113, 114, 149 OK
QET B/Ret 35 29, 33, 47, 48 83, 75, 86, 78 OK
QET C/Ret 7 5, 9, 10, 28 72, 70, 58, 67 OK
QET D/Ret 38 36, 40, 43, 44 79, 66, 66, 66 OK
QET A/QET B 3 35 1000-3000 826
QET A/QET C 3 7 1660
QET A/QET D 3 38 1383
QET B/QET C 35 7 1745
QET B/QET D 35 38 1611
QET C/QET D 7 38 2011
LED 1 chassis 42 1.0 - 1.1 V -
LED 2 chassis 26 -
1310 Electrical check of ZC-74 after connecting to Stripline 48 on Tower Face 3
Detector: S104 Stripline 48
SC: none 300 K
Face: 3 Date 1/27/2023
SQUET: ZC-74 Cable 1
Signal Pos. lead Gnd lead Nominal Actual Chassis
(Gnd lead)
Nominal:
< 0.1 nS
SQUID bias A/Ret 4 20 3 - 5 k 5.097 k OK
SQUID bias B/Ret 19 34 4.491 k OK
SQUID bias C/Ret 8 24 4.383 k OK
SQUID bias D/Ret 23 39 4.299 k OK
Feedback A/Ret 37 21 15 - 25 k 368 k NOT OK
Feedback B/Ret 2 18 19.71 k OK
Feedback C/Ret 41 25 18.44 k OK
Feedback D/Ret 22 6 18.74 k OK
QET A/Ret 3 1, 13, 14, 17, 32 60 - 80 77, 65, 58, 59, 68 OK
QET B/Ret 35 29, 33, 47, 48 71, 71, 72, 72 OK
QET C/Ret 7 5, 9, 10, 28 55, 64, 54, 68 OK
QET D/Ret 38 36, 40, 43, 44 58, 58, 57, 58 OK
QET A/QET B 3 35 1000-3000 1735
QET A/QET C 3 7 2535
QET A/QET D 3 38 2166
QET B/QET C 35 7 2626
QET B/QET D 35 38 2243
QET C/QET D 7 38 1079
LED 1 chassis 42 1.0 - 1.1 V -
LED 2 chassis 26 -
1410 Check contents of warm LN2 Trap 1: 7.3 (10 on G1) mbar. Pump it out with the scroll pump.
1420 G1 = 2.0 mbar and stable, stop pumping on trap 1.
1658 Raise main bath, install with screws, no issues.

Next Day