| 1000 | Start pumping on fridge lines through V7 and V2 with scroll pump. |
| 1100 | After pumping on lines, G1=1.1 mbar, P1=40 ubar, and G2=0 mbar. Add He gas through V7 to G1 line until G1=849 mbar. |
| 1105 | Open V1. Initial drop in G1 to a relatively stable 123 mbar after 20 seconds; P1 has not yet changed. |
| 1115 | P1=40 ubar, G1=120 mbar. |
| 1135 | P1= 45 ubar, G1=117 mbar. |
| 1140 | P1=50 ubar, G1=117 mbar. Close V1. |
| 1145 | Add more He gas until G1=759 mbar. P1 still at 50 ubar. Open V1. G1 settles to 209 mbar. |
| 1200 | G1=206 mbar, P1=60 ubar. |
| 1215 | G1=203 mbar, P1=80 ubar. |
| 1220 | G1=203 mbar, P1=90 ubar and G2=0 mbar. Start pumping out He gas through V5A, V2A, V7, V11A, V13A, V6 with scroll pump. |
| 1300 | G1=197 mbar, P1=70 ubar and G2=0 mbar. Open V2 and V3. |
| 1340 | G1=2.1 mbar, P1=120 ubar and G2=0 mbar. Close all valves on IGH. |
| 1350 | Open V2, V3, V11A, V13A in preparation for adding He gas. Open V7 and let G1 and G2 rise. Once G2 reaches 580mbar, close V7 to stop adding He gas. Close V2, V3, and open V1. G1 fell to 83 mbar once V1 was opened and then rose to 86 mbar over ~10 seconds before it began oscillating/decreasing; this indicates that there is no real flow. Open V7 and V6 to pump out through fridge lines. G2 started at 499 mbar, open V6 and it goes up slightly. |
| 1420 | G1=86 mbar, P1=95 ubar, G2=0 mbar. |
| 1430 | G1=1.8 mbar, P1=600 ubar, G2=0 mbar. Open V2, V3, V11A, V13A in preparation for adding He gas. Open V7 and let G1 and G2 rise. Once G2 reaches 570mbar, close V7 to stop adding He gas. When G1 and G2 stabilize to roughly 570 mbar and 488 mbar respectively. Close V2, V3, and open V1. G1 fell to 83 mbar once V1 was opened and then rose to 85 mbar over ~10 seconds before it began oscillating/decreasing back to 83 mbar; this indicates again that there is no flow. Open V7, V2, V3 and V6 to pump out through fridge lines. |
| 1450 | G1=3 mbar, P1=2.6 mbar, G2=0 mbar. Open V2, V3, V11A, V13A in preparation for adding He gas. Open V7 and let G1 and G2 rise. Once G2 reaches 600 mbar, close V7 to stop adding He gas. When G1 and G2 stabilize to roughly 611 mbar and 525 mbar respectively. Close V2, V3, and open V1. G1 fell to 90 mbar once V1 was opened and then rose to 92 mbar over ~10 seconds before it began oscillating/decreasing; this indicates again that there is no flow. Open V7, V2, V3 and V6 to pump out through fridge lines. |
| 1520 | Add 0.63 mbar N2 exchange gas to IVC in preparation for warm up. Isolate IVC. |
| 1525 | Attach turbo pump to He-3 pump. Turn on He-3 pump. |
| 1530 | Commence pumping on He-3 pump with turbo pump while monitoring pressure in He-3 pump exhaust with external pressure sensor. Continue pumping on fridge lines through V7, V2, V3, V1 with scroll pump. Currently G1=1.5 mbar and P1=1.3 mbar. Current mixing chamber temperature at 78 K. |
| 1545 | Lower dewar about 18 inches. G1= 0.8 mbar, P1=320 ubar, G2=0 mbar. |