2011/09/06

1152	Filled N2 cold trap.
1407	Heating power test. Added 10 uW to MC.
1604	Added 40uw power to MC.
1706	Added 5uw power to MC.

MC Power (uW)	Tower temperature (mK)
0	51.2
1	57.4
5	68.7?
10	77.2
40	117.3

Using values from measurements of the heating effect of Q4, the following resistances for the possible short are found:

Bias [V]        R_s [Ohm]               R_s [Ohm]
-4              3.8e+07 + i(1.24e+07)   3.8e+07 - i(1.24e+07)
-6              3.78e+07 + i(1.3e+07)   3.78e+07 - i(1.3e+07)
-8              3.77e+07 + i(1.35e+07)  3.77e+07 - i(1.35e+07)