2016/08/28 (Sunday)

	Setup: DIB1/2/3 → 3.2 MHz filters → nothing/disconnector board/remapping board → HVside2board → DCRC55(1)/50(3). Disconnector board has all charge lines disconnected.
	DCRCs powered overnight. Not pumping on IVC.. Baked detector in grounded HV mode for 12 hours overnight, Tower at 0.33 K until 04:48.
1245	Tower/MC/Coldplate = 37.0/32.2/157 mK, Still = 1.40 K / 80 μbar, G1/G2 = 171/153 mbar, 1K Pot = 1.53 K / 4.5 mbar, MB = 64.8%. IVC=7.4 μbar.
1247	Fill LN2 cold trap full.
1259	DIB1PC baseline=-0.805V. Pulses look typical (i.e. not “peaky” as we expect to see from He film)

1306	Increase HV until pulses disappear at 38.7V. 59.3mV leakage. Pulses+breakdown noise return after ~1 min. Decrease HV to 31V where pulses look good and baseline = -0.794V, 44.1mV leakage. Breakdown limit = 11.6 V
1320	Increase HV until pulses disappear at -32.8V. -53.0mV leakage. Pulses+breakdown return noise after ~1 min. Decrease HV to -19.9 V where pulses look good and baseline = -0.80V, -29.3mV leakage. Breakdown limit = -7.0V
1325	Increase HV until pulses disappear at -41.1V. -63.0mV leakage. Pulses+breakdown return noise after ~2 min. Decrease HV to -33.2 V where pulses look good and baseline = -0.74V, -49.6mV leakage. Breakdown limit = -11.4V
1343	Increase HV until pulses disappear at 46.7V. 74.3mV leakage. Pulses+breakdown noise return after ~1 min. Decrease HV to 38.5V where pulses look good and baseline = -0.752V, 54.6mV leakage. Breakdown limit = 14.5 V

1352	Breakdown limits approximately the same or greater than observed yesterday and about the same as onFriday, the values for which were taken after 3 hours of data, so presumably similar conditions. Looks like any He in the IVC is not noticeably affecting Charge Breakdown.

1406	Stop circulation by closing V13B and opening V9, to start pumping mixture to dump. Close the 1K Pot needlevalve, speedivalve, and V4A to cease pumping on the 1K Pot. Close 1K Pot exhaust He recovery and turn yellow value from recovery to exhaust. Isolate and turn off He 4 pump. Turn on Mixing chamber heater to 20 mW. After a few minutes the tower temperature has already risen to 4.5 K.
1430	Turn on Still Heater to 10mW. MC temp = 6K. Tower temp = 4.5K. Begin pushing He gas through transfer port in order to boil off LHe in Main Bath, while being able to recover it. Thrifty and nifty.
1432	IVC pressure = 1.4μbar.
1436	Isolate Cold Trap 2 by closing V12B and Cold Trap 2 Speedivalve. After isolating Cold Trap 2, open V5 to begin pumping mixture out from both sides of fridge.
1437	G1 = 2.0mbar, G2 (Dump Pressure) = 784mbar and rising.
1545	Isolate dump by closing V9. Turn off He3 pump.