2014/06/09

0900	Fill LN2 cold trap full.
1015	Attach DCRC33 to DIB1 and lock SQUIDs with following values:

DIB1 DCRC33	SQUID Bias [uA]	Lockpoint [mV]	Modulation Depth [Vpp]
A	82.03	4.38	.409
B	83.99	4.09	.436
C	82.04	4.67	.405
D	85.94	3.50	.420

1600	After attaching all three DCRC boards and turning on 15V power supply, mixing chamber temperature began rising. Current MC temperature at 77.0mK and rising. Traces look noisy as well even with timing link established. Pictures shown in Figures 1-3.

Figure 1: DIB 1 (DCRC 31) Detector Readout
Figure 2: DIB 2 (DCRC 33) Detector Readout
Figure 3: DIB 3 (DCRC 50) Detector Readout

1630	Proceed with taking IbIs data by only plugging one DCRC in at a time.
1830	Fill LN2 cold trap full.

IbIs Measurements

Crystal Face 1

Crystal Face 2