| Status | Run 77 in progress. Warmed up two days ago, first 10K pumpout. MC(H35) temp settled to 5.47 K overnight. |
| Setup To Be | Cable 2/1/3 → diverter/nothing/nothing → DCRC50(3)/DCRC55(1)/DCRCX(4) |
| 1120 | MC(H35) = baseline of 36 mK with most spikes upto 55mK |
| 1123 | Unplugged the DCRCs and will plug each Cable to DCRC55(1) which is the only all channels working DCRC at this moment |
| | Plugged in DCRC55(1) to nothing to Cable 1. All channels showing noise. PA SQUID donot show modulation. |
| 1145 | Plugged in DCRC55(1) to nothing to Cable 2. PB and PD shows noise traces, PA and PC not showing traces. |
| 1152 | Plugged in DCRC55(1) to nothing to Cable 3. PA, PB and PC is showing noise traces. PD still not responding. |
| 1158 | Plugged in all DCRCs Cable 2/1/3 → diverter/nothing/nothing → DCRC50(3)/DCRC55(1)/DCRCX(4) |
| | DCRC1 all channel show traces. DCRC3 PB and PD showing traces. DCRC4 no channels showing traces. Power cycling DCRC4. |
| 1207 | DCRC4 now showing traces on PA, PB and PC. PD not showing any traces yet. |
| | DCRC1 PA/PB/PC/PD = Side2pC/Side2pF/Side1pC/Side1pF |
| | DCRC3 PA/PB/PC/PD = Side1pE /Side1pB /Side1pD/ Side2pE |
| | DCRC4 PA/PB/PC/PD = Side2pB/ Side2pA/ Side1pA/ Side2pD |
| 1305 | Zapping SQUIDs on DCRC1 |
| | Procedure: Go to MidasDAQ/scripts/pysequencer folder and run the ZAP.py script with appropriate arguments. Example: python ZAP.py –dcrc 3 –chan A,B,C,D –onoff 2,30 –iter 1 –uid 1461084535119 |
| | Copy the printed commands and paste it to testzap.msl file in the MIDAS sequencer. Save and load the script. Start the script. |
| 1311 | Zapped SQUIDs on DCRC3. Saw jump in Still pressure (P1) as well as jump in baseline of trace in one phonon channel of the DCRC |
| 1325 | After Zapping all the Squids I tried tuning the SQUIDS and found the following SQUIDS+channels working |
| | DCRC1 PA/PB/PC/PD = (SQUID is not showing modulation)Side2pC/Side2pF/Side1pC/Side1pF |
| | DCRC3 PA/PB/PC/PD = Side1pE /Side1pB /Side1pD/ Side2pE |
| | DCRC4 PA/PB/PC/PD = (SQUID is not showing modulation)Side2pB/ (SQUID is not showing modulation)Side2pA/ Side1pA/ Side2pD |
| 1520 | Tried quickIbIs to see which channels are showing pulses. |
| | DCRC1 PA/PB/PC/PD = (SQUID is not showing modulation)Side2pC/Side2pF(not transitioning)/(not transitioning)Side1pC/(not transitioning)Side1pF |
| | DCRC3 PA/PB/PC/PD = Side1pE /Side1pB /Side1pD/ Side2pE(not transitioning) |
| | DCRC4 PA/PB/PC/PD = (SQUID is not showing modulation)Side2pB/ (SQUID is not showing modulation)Side2pA/ Side1pA/ Side2pD |
| 1550 | I checked DCRC3 first and then DCRC1. Since I donot see transition in DCRC1, i switched back to DCRC3 to look for pulses, which were gone by now. All channels seem to have lost transitioning at this point which indicates He films issue. MC(H35) baseline is still at 35 mK |
| | Refilled LN2 for Cold trap 1 |