2023/03/08 (Wednesday)
* Lab in-personnel: Ping
| Begin another warm up and pump out | |
| 1232 | Close V6 to stop circulation (Put 0% in the V6 tab in the IGHFrontPanel Vi and wait). |
| 1238 | V6 is now fully closed (light is off on IGH, Still pressure (P1) is rising (currently 4.5 mbar), Condenser pressure (G1) falling). Turn off 3He pump (Click Settings in the IGHFrontPanel.Vi and uncheck 3He Pump tab and press Ok) |
| 1244 | Close 1K Pot needle valve |
| 1249 | Open V3 to let mixture from Condenser side into Still side. |
| 1251 | MC(H35) = 0.647 K |
| 1254 | Turn off DAQ programs and unplug DCRCs 1,2 & 3 |
| 1254 | Turn on Still and MC heaters to 20 mW each (Go to Settings in IGHFrontPanel.Vi, Select On in P(Still) and type 20 for Still and 20000 for M/C, Click Ok) |
| 1310 | Close 1K Pot speedivalve, V4a, 4He pump inlet valve. Turn off 4He pump. Close recovery valve to 4He pump outlet. NOTE: remember to open recovery valve when the pump is turned back on. |
| 1329 | MC(H35)/1KPot = 3.41/3.29 K |
| 1329 | G1(fridge) = 469 mbar. Open V9 to release mixture into dump to keep it from going over 1000 mbar |
| 1342 | MC(H35)/1KPot = 3.13/3.48 K. |
| 1419 | Currently, Turbo on the IVC line reads 1.6 nbar. Check pressure in IVC: 25 nbar. Baseline: 4.6 nbar (Close Turbo pump valve and read the baseline, open IVC valves on top of the fridge, read the pressure on the turbo gauge after it settles) |
| 1429 | Pump out IVC with the turbo pump |
| 1651 | MC(H35) = 10.3 K. Turn off MC and Still heaters |