2024/01/31 (Wednesday)

Lab in-personnel: Himangshu

Status	Run 79 beginning. Fridge at base temperature.
1220	Refilled LN2 Cold Trap 1 from dewar.
1200	Tower/MC(H35)/Coldplate = 66.5/34.9/147 mK, Still = 1.11 K / 0.110 mbar / 0 mW, G1/G2= 69/76 mbar, 1K Pot = 45° / 1.64 K / 24 mbar. MB = 33.5% . No DCRCS are turned ON yet for today.

1232	Start MIDAS in cdms2(if not already running). Power ON the DCRC3 (donot plug the IO cable yet) using the ethernet cable. Start Frontend GUIs(dcrc_driver01, towerfe3_01, triggerfe2). (Open SQUIDTuningGUI, select correct DCRC and click SQUID Control, Select correct DCRC and Initialize each phonon channel if not done. Close SQUID Control) , Stop Frontend, Unplug ethernet cable, connect IO cable, Start Frontend again

1232

Start MIDAS in cdms2(if not already running). Power ON the DCRC3 (donot plug the IO cable yet) using the ethernet cable. Start Frontend GUIs(dcrc_driver01, towerfe3_01, triggerfe2). (Open SQUIDTuningGUI, select correct DCRC and click SQUID Control, Select correct DCRC and Initialize each phonon channel if not done. Close SQUID Control) , Stop Frontend, Unplug ethernet cable, connect IO cable, Start Frontend again

1247	DCRC3 is connected to Cable2+diverter to get squid tuning parameters
	Cable 2: SQuid Bias: 0, -85, -81.36, -83.1 LockPoint: 0, -4.98, -4.42, -4.11
1257	Check response to QET bias changes. pB,pC,pD show response but no pulses yet. Tower temp went upwards to 71 mK from 62 mK after connecting this cable
1305	Stop Run(if run in progress). click SQUID Control, Initialize all phonon channels. Close SQUID Control. Stop Frontends. Unplug ethernet cable to power off the DCRC
1316	DCRC3 is initialized. Connect Cable 1 and Start frontends(dcrc_driver01, towerfe3_01, triggerfe2). Set SQUID bias and lockpoints. (SQuid Bias: -89.8, -91.6, -74.6, -100.5 LockPoint: -8.28, -5.07, -4.21, -7.36 ). Need to change Open Loop to Non-inverting and Pre-Amp to Feedback as well
	Tower temp went from 62.9 mK to 63 and came back down to 62.7 mK
1337	Zap SQUID since pattern on pA is not making sense
1420	Need to change Open Loop to Non-inverting and Pre-Amp to Feedback as well

1540	DCRC3 is initialized. Connect Cable 1 and Start frontends(dcrc_driver01, towerfe3_01, triggerfe2). Set SQUID bias and lockpoints. (SQuid Bias: -91.7, -88.4, -74.6, -100.5 LockPoint: -9.45, -3.01, -4.21, -7.36 ). Need to change Open Loop to Non-inverting and Pre-Amp to Feedback as well

1545	DCRC3 is initialized. Connect Cable 2+diverter and Start frontends(dcrc_driver01, towerfe3_01, triggerfe2). Set SQUID bias and lockpoints. (SQuid Bias: 0, -85, -81.36, -83.1 LockPoint: 0, -4.98, -4.42, -4.11 ). Need to change Open Loop to Non-inverting and Pre-Amp to Feedback as well
1617	No pulses seen on Cable 2. Tower temp rises from 62.8 mK to 70.6 mK since this DCRC is on.

1641	DCRC3 is initialized. Connect Cable 3 and Start frontends(dcrc_driver01, towerfe3_01, triggerfe2). Set SQUID bias and lockpoints. (SQuid Bias: -70.4, -101.7, 0, -75.4 LockPoint: -4.55, -4.65, 0, -2.64 ). Need to change Open Loop to Non-inverting and Pre-Amp to Feedback as well

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