2016/03/04 (Friday)

Previous Day

	Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50
	Idle overnight, DCRCs powered
0855	Tower/MC(H35)/MC sensor/Cold Plate = 31.0/27.0/40/154 mK, Still = 1.17 K / 0.095 mbar, G1/G2 = 135/120 mbar, 1K Pot = 1.58 K / 4.5 mbar, Main bath = 72.1%
0910	Fill LN2 cold trap Dewar
0925	Turn on filter switches on DIB1&3 for everything except Qfeedback (50 and 30). Now all DIB2 on and on DIB1&3 all on except Qi/Qo feedback. Repower DCRCs. Zap SQUIDs. Set up timing link. Get phonon channels working.
0955	Reset QET biases to the same values used for recent mini-IbIs, for consistency. (should set these back to correct tuned values later.)
1120	Perform mini IbIs on all three DIBs with all filters ON on DIB2/DCRC33 and all filters ON Except Charge Feedback on DIBS 1&3/DCRCs 55&50.
1155	After looking at data, notice some inconsistencies, so for the sake of sanity, change SQUID biases and Lockpoints back to the (incorrect) values we were using for the previous pi-filter tests, and repeat the same switch setup (all filters ON on DIB2/DCRC33 and all filters ON Except Charge Feedback on DIBS 1&3/DCRCs 55&50).
1210	Perform mini IbIs on all three DIBs with all filters ON on DIB2/DCRC33 and all filters ON Except Charge Feedback on DIBS 1&3/DCRCs 55&50 using incorrect SQUID/Lockpoint/QET settings.
1225	Set SQUID Bias, Lockpoint, and QET Bias settings on all DCRCs back to the “correct” values from the start of the run that we found yesterday.
1330	It looks like SQUID biases didn't affect the result, so keep the SQUID biases at the “correct” values. Set the QET biases back to “pi-filter standard” values.
1335	Power off DCRCs, on DIBs 1&3, switch OFF QBias channels (11, 15), so all filters are ON Except Charge Feedback/Bias on DIBs 1&3/DCRCs 55&50. Repower DCRCs. Zap SQUIDs.
1415	Perform mini IbIs on all three DIBs with all filters ON on DIB2/DCRC33 and all filters ON Except Charge Feedback/Bias on DIBS 1&3/DCRCs 55&50.
1440	Unpower DCRCs, switch filters so that everything except Q Feedback/Source/Drain (switches: 50, 27, 16, 30, 12, 31) is filtered (i.e. QBias is the only Q-lines filtered). Repower DCRCs. Zap SQUIDs.
1310	Perform mini IbIs on all three DIBs with all filters ON on DIB2/DCRC33 and all filters ON Except Charge Feedback/Source/Drain on DIBS 1&3/DCRCs 55&50. Power off DCRCs, remove pi-filter switchboards, attach DSUB pi-filter connectors, and repower DCRCs. Zap SQUIDs.
1545	Set all QET biases to 0uA in preparation for measuring Tc's. Reestablish timing link.
1740	After dealing with some computer-difficulties, we're back in business. Had to rezap SQUIDs because we hade to unpower DCRC50 (DIB3) in the process.
	Fill LN2 cold trap full.
1750	Check phonon traces. Some channels railed, but setting Driver Offsets helps. All channels have SQUID Bias, Lockpoint, and QET Bias settings that we loaded from the start of the run (i.e. they haven't mistakenly changed).
1755	Start 2 hours of 30min background series at -4/+4 V without the lead/poly shield with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, with 30s flash and 25 minute cooldown before series. Trigger on DIB1 phA with threshold of 30ADC bins, with 150 us pileup cut window.
1800	Place Ba source at top of fridge.

Spreadsheet of Mini-IbIs data

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