2023/10/04 (Wednesday)
- Lab in-personnel: Zach, Himangshu
| 1522 | Check contents of warm LN2 Trap 1: 11.7 mbar. Pump it out with the scroll pump. |
|---|---|
| 1525 | G1 = 2.6 mbar and stable, stop pumping on trap 1. |
| 1528 | Insert cold trap 1 into the LN2 bath, fill bath |
| 1528 | Turn on the 3He pump |
| 1528 | Begin cryocleaning through cold trap 1 following procedure Cryo-Clean Mixture |
| 1530 | Open V6 to 11% |
| 1534 | Open V6 to 11.9% to restart flow |
| 1542 | Open V6 to 12.1% to restart flow |
| 1640 | Stop cryocleaning through cold trap 1, pump mixture to dump |
| 1652 | G1 = 1.6, P1 =.13 mbar, close all valves, leaving 712.2 mbar in the dump |
| 1654 | Turn off 3He pump and pull cold trap 1 out of the LN2 bath |
| 1624 | Electrical check of ZC-70+interposer after connecting to 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 | 10/04/2023 | ||
| 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 | 4.276 k | OK | |
| SQUID bias C/Ret | 8 | 24 | 4.554 k | OK | |
| SQUID bias D/Ret | 23 | 39 | 5.046 k | OK | |
| Feedback A/Ret | 37 | 21 | 15 - 25 k | 29.11 k | OK |
| Feedback B/Ret | 2 | 18 | 25.37 k | OK | |
| Feedback C/Ret | 41 | 25 | 28.10 k | OK | |
| Feedback D/Ret | 22 | 6 | 34.17 k | OK | |
| QET A/Ret | 3 | 1, 13, 14, 17, 32 | 60 - 80 | OL,87.1,OL, OL, OL | OK |
| QET B/Ret | 35 | 29, 33, 47, 48 | 75.3, 75.3, OL, OL | OK | |
| QET C/Ret | 7 | 5, 9, 10, 28 | 83.3, 77.7, OL, OL | OK | |
| QET D/Ret | 38 | 36, 40, 43, 44 | 74.2, 74.9, OL, OL | OK | |
| QET A/QET B | 3 | 35 | 1000-3000 | 917 ohm | |
| QET A/QET C | 3 | 7 | 753 | ||
| QET A/QET D | 3 | 38 | 2154 | ||
| QET B/QET C | 35 | 7 | 5844 | ||
| QET B/QET D | 35 | 38 | 2073 | ||
| QET C/QET D | 7 | 38 | 1915 | ||
| LED 1 | chassis | 42 | 1.0 - 1.1 V | 1.105 | |
| LED 2 | chassis | 26 | 1.69 | ||
| Motor Coil 1 | pBr3 | pBr4 | 7.53 k | ||
| Motor Coil 2 | pCr3 | pCr4 | 7.47 k | ||
| Near Endstop | pAr3 | chassis | 5.714 k | ||
| Far Endstop | pAr4 | chassis | 22.49 k | ||
| Thermometer ROX | pAr1 | pDr4 | 1.133 k | ||