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2012/12/06

1002	Fed cricket 3 pellets.
1010	Filled LN2 cold trap.

Time	P1 (mbar)	P2 (mbar)	G1 (mbar)	G2 (mbar)	Mixing Chamber (mK)	Still (kOhms)	Cold Plate (kOhms)	1 K Pot (K)
1331	0.065	70	77.8	83	72.5	-	-	1.74

1341	Reducing 1 K pot temperature to ~ 1.59 K. Forgot to record still and cold plate values before doing so. After this, will add some mixture to circulation.

Time	P1 (mbar)	P2 (mbar)	G1 (mbar)	G2 (mbar)	Mixing Chamber (mK)	Still (kOhms)	Cold Plate (kOhms)	1 K Pot (K)
1407	0.055	13	68	74	68.3	4.42	13.7	1.60

1543	Mixing chamber temp: 68.6 mK. Will put in DCRC32 now.
1549	Plugged in DCRC32. Turned on power only by writing 0800. Interestingly, the charge channels seem fine. I didn't turn on the FET heater.
	POE reading: 111 W
1553	Temperature begins to increase dramatically.
1613	Mixing chamber: 76 mK.
1644	Temperature has stabilized to 80 mK. Interesting, there was a few minutes delay before this temperature increase. Very similar to what happened when DCRC33 was plugged in on 2012/12/04.
1736	Filled LN2 cold trap.
	Fed Cricket 4 pellets.
1754	Temperature has gone back down to 68.4 mK. Plugged in DCRC31.
	POE reading: 111 W
1757	This time the charge channels were railed. Had to turn on the FET heater. However, though the channels are no longer railed, they're fluctuating around 2 V.
1846	Temperature has leveled out to 80.6 mK. Again, similar to the other boards.

1853	Testing out one of the old PoE's used to power the boards. Let's see if the temperature goes below 80 mK.
	As an aside, I didn't have to turn on the FET heater again for DCRC 31. Maybe the channels were still on a high, so to speak. Still oscillating around 2 V.

DCRC31 stayed around 79 mK. Removed board.