2021/04/26 (Monday)
- Lab in-person: Matt
- Virtual partner: Zach
| Status | Run 74 in progress. Warmed up to fix IVC leak. Cryostat vacuum jacket and IVC pumped out. Haven't cleaned the mixture yet. |
|---|---|
| 1300 | Matt enters lab |
| 1300 | Turbo on IVC = 8.6 nbar. With Turbo valved out for 1 minute IVC = 190 nbar. |
| 1315 | Check contents of warm LN2 Trap 1: 8.4 mbar. Pump out with Scroll Pump. |
| 1400 | Check contents of warm LN2 Trap 2: 6.7 mbar. Pump out with Scroll Pump. |
| 1405 | Put Trap 1 in bath and fill bath with LN2. |
| 1425 | Start cryocleaning mixture through cold LN2 Trap 1, V6 = 12.4% |
| 1430 | Increase V6 → 12.6% to restart flow |
| 1505 | Increase V6 → 12.9% to restart flow |
| 1525 | Stop cleaning through Trap 1 after 60 min. G2 flow pressure was 590-920 mbar. Pump mixture to dump. Removed 6.6 mbar. |
| 1545 | The server cdms2 on which we run MIDAS was updated to a new OS, Centos5 or whatever. I tried starting MIDAS and it failed. The script checks the hostname and throws an error if it is not 'cdms2'. Apparently the hostname has been changed to 'spa-cdms2'. I made a test script to modify this so that it accepts 'spa-cdms2', but then when I tried to start MIDAS there were other errors, mhttpd and mlogger both hit an error while loading shared libraries. |
| 1555 | It doesn't work on cdms3 either. Says “Cannot connect to remote host”. |
| 1610 | Check Leak Detector on IVC with Turbo valved out; settles to 11.4 pbarL/s, pretty low |
| 1610 | Matt exits lab |