2018/06/15 (Friday)

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	Setup: DIB1/3/4 → 3.2 MHz filters 2/3/1 → cable 3/1/2 → gender changer 3/?/2 → HVConn 1/3/2 → HV 1/2 → DCRC55(1)/DCRC50(3)
	overnight: base temp was oscillating regularly between 37 mK and 52 mK with a 6 hour period. G1 followed a similar, but inverted pattern, oscillating between 190 mbar and 100 mbar. 1K pot was bouncing around 3 mbar, but became much more stable around 0115 and has slowly risen to 3.4 mbar.

0925	G1/G2 = 187/180 mbar, P1 = 0.045 mbar, Tower = 39.3 mK, 1K pot = 1.44 K / 3.4 mbar. MB = 40.5%.
0927	Close V14. P1 drops to 0.040 mbar. Maybe the fridge was oscillating because the still was open to the dump through V14? P1 didn't change much, but did follow tower temp a little bit.
0935	Fill LN2 cold trap full.
0945	Tower/MC/Coldplate = 39.8/39.6/195 mK, Still = 1.1 K / 0.040 mbar, G1/G2 = 178/173 mbar, 1K Pot = 1.44 K / 3.4 mbar. MB = 40.5%
0956	Tower is flattening out at 39.8 mK. Not sure if we'll still get these every 6 hour temperature excursions now that V14 is closed. The next one wouldn't bee until noon. Hopefully that's done though, so let's play with Still heating to try and bring the base temp down a little bit more.
0958	Set Still heater = 1 mW. Tower temp starts to fall and G1 starts to increase.
1048	G1 peaked at 238 mbar and is now decreasing, tower temp bottomed out at 32 mK, but has now risen and is flattening out at 36.6 mK. P1 = 0.055 mbar. So Still heating seems to have helped a little bit, but it took about an hour to stabilize.
1051	1K pot pressure = 3.6 mbar and is still slowly increasing.
1055	Commence LHe transfer (MB = 38.3%)
1200	Cease LHe transfer (MB = 92.6%)
1210	Tower = 36.6 mK. Set Still heater = 2 mW. P1 = 0.075 mbar. Tower temp decreases slightly to 36.6 mK, G1 =250 mbar and rising.
1255	Tower fell to 35.4 mK but is now rising. G1 = 289 mbar and rising.
1318	Tower = 54.3 mK and still rising. G1 = 306 mbar and maybe starting to flatten off. It seems this is another of these large temperature excursions, but now G1 follows the base temp instead of being inversely proportional. In any case, this is going to be much higher than the overnight excursions, so the Still heating does not seem to be helping. Reduce Still heat to 1 mW.
1328	Tower / G1 peak at 59 mK / 311 mbar and start decreasing.
1343	Tower = 53.3 mK, G1 = 276 mbar. Both are decreasing.
	wondering whether the base temperature excursions are a symptom of too little mixture… -MF
1530	Tower = 40mk / G1/G2 are at 225/217 mbar and decreasing.
1535	1K Pot is stable. 1K Pot = 1.43 K / 3.8 mbar.
1537	Cold trap filled with LN2

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