2012/07/25

0948	Filled LN2 cold trap.
1020	Fed Cricket 3 pellets.
1348	Last data series finished. Data was taken at 62mK.
1605	Zapped SQUIDs on DCRC31 twice.
1655	Zapped SQUIDS on DCRC31 twice.
1704	The phonon signal isn't great when you increase the QET bias to a certain value(Figure 1). Table 1 also shows values for transition from normal baseline to the signal you see below for each channel.

Channel B3 with DCRC31

Table 1: DCRC31 settings
Driver offset (V)	SQUID Bias(uA)	Lockpoint (mV)	Modulation Depth	QET Bias (uA)	Transition	Polarity
0	82.02	4.2	3.0		-37	NI
0	71.28	3.31	4.1		-33	NI
0	83	5.16	4.7		-70	NI
0	86.05	3.5	5.0		-68	I

1833	Filled LN2 cold trap.
2313	ZAP DIB2/DCRC32 SQUIDs
2318	ZAP DIB1/DCRC33 SQUIDs

Data Set 07120725_0156 with Ba-133 & Am-241 and DIB1 -2 V, DIB2 +2 V

Figure 1: Qi and Qo vs Event Time for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 2: Qsum spectra. Qi and χ squared cuts.

Figure 3: χ Squared vs. Qsum. Qi cut.

Data Set 07120725_0911 with Ba-133 & Am-241 and DIB1 +6 V, DIB2 -6 V

Figure 1: Qi and Qo vs Event Time for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 2: Qsum spectra. Qi and χ squared cuts.

Figure 3: χ Squared vs. Qsum. Qi cut.

Data Set 07120725_1134 with Ba-133 & Am-241 and DIB1 -6 V, DIB2 +6 V

Figure 1: Qi and Qo vs Event Time for zip 1 and zip 2 (no cross talk). Bulk, Qi and χ squared cuts.

Figure 2: Qsum spectra. Qi and χ squared cuts.

Figure 3: χ Squared vs. Qsum. Qi cut.