| 1015 | Filled LN2 cold trap full. |
| 1038 | Clean Cricket's bowl, fed Cricket 4 pellets. |
| 1056 | Flash for 6 seconds, cool down for 20 minutes. Take data at -/+4 V for Dib 1/2. 25 ADC bins for DCRC32, 32 ADC bins for DCRC33 (Qi2 trigger only). |
| 1204 | Data finished. Close V13B and open V5, V12A and cold trap 1 speedivalve to begin pumping mixture to dump. |
| 1410 | We have lost Roxanne. Morale is low. |
| 1430 | Although it has not reached below 1mbar, P1 has been stead at 1.3mbar and thus we decided to continue. Closed all valves on igh, and c.t. 1 speedivalve as dictated in Roxanne's manual. Isolated 1K pot and switched to exhaust. Opened 5A, 2A, 7, 11B, 11A, 2, 1 to pump on all three cold traps with He 4 pump. Currently, G1: 1.0mbar, G2: 403.4mbar, P1: 0.016mbar, Fridge temp: 550mK. |
| 1444 | Pulled out He cold trap, removed o-ring and metal nut. Removed LN2 cold traps. |
| 1453 | G1 peaked at ~109mbar and has started to drop. G2 remains around 403.4mbar. |
| 1525 | Beginning first round of cold trap cleaning. |
| 1726 | Finished final cold trap heating. Allow them to cool. |
| 1755 | Cold traps at room temp. Close all valves on IGH. Currently, G1: 1.0mbar, G2: 450.3mbar, P1: 0.015 mbar, 1K Pot: 4.53K, Fridge: 1.13K. |
| 1800 | Return He cold trap to main bath, and LN2 cold traps to their dewar. To start the 1K pot open V4A (note: This was not included in Appendix Instructions of Manual, but was included in the start 1K Pot instructions (pg. 54)), open needle valve and large speedivalve. Switch to recovery. After settling 1K Pot: 1.745K and P2: 60mbar. |
| | Filled LN2 cold traps full. |
| 1835 | Begin LHe transfer (34.3%). |
| 1913 | End LHe transfer (91.5%). |
| | Open gate valve and condenser valve. |
| 1920 | Open V1, V13A, c.t. 1 speedivalve and V12A. Currently G1: 0.1mbar, G2: 465.8mbar, P1: 1000mbar (IS THIS OK?), P2 60.0mbar, 1K Pot 1.735. Open V6 to 12.8%, After settling G1: 47.2mbar, G2: 56.4mbar, all others didn't change. |
| | 1000 mbar should go down as v6 opens more and mixture starts to circulate… |
| 1944 | Attached DCRC33 to 19 (near), DCRC32 to 21 (far). |
| 2055 | Mixing chamber temperature is 63.5 K, G1 pressure is 66 mbar, G2 pressure is 67 mbar. |
| 2320 | Fed Cricket 4 pellets. |
| 2349 | After many attempts we could not get a Qi signal from Stripline 21 (Dib1) to DCRC32. We were able to get a signal (with pulses) from DCRC33 in stripline 19 (Dib2), though we could not get a signal from Stripline 21 with DCRC33. This seems to suggest that there is an issue with Stripline 21. Below I've included images of the detector readout with the two DCRC's plugged into Stripline 21 to make it more clear what I mean by no signal. It is unclear as to whether this is an issue with the stripline or just a very fickle DRCD board, but we shall try again tomorrow . Currently, G1: 60.6mbar, G2: 63.3mbar, P1: 0.085mbar, 1K Pot: 1.736K, Fridge: 63.4mK, so at least the fridge itself is looking good. |
