2011/12/04

Data taken in the last run

1.5G    ./07111203_1800
1.6G    ./07111203_1920
1.6G    ./07111203_2040
1.9G    ./07111203_2205
1.9G    ./07111203_2325
1.8G    ./07111204_0046
1.8G    ./07111204_0211
1.8G    ./07111204_0331
1.7G    ./07111204_0451
1.6G    ./07111204_0616
1.4G    ./07111204_0736
1.2G    ./07111204_0856

1339	Filled LN2 cold trap.
1752	Reduced DCRC33 charge baseline noise from 6mVpp to 2mVpp by tightening the DB50 connector screws. Can see pulses even triggers at 32 ADC bin.
2100	Put the Ba-133 source 6“ below the top of the mu metal shield.
	Take data at -4V, -8V, and -13V after 6s flashing and 20min cooldown. Trigger on Q1-4 at 40ADC bin. Trace length 0.4096ms, look back time 100us. Data/flashing/cooldown = 60/0.1/20 min. Tower temperature ~80mK.

-4V, -6V, -8V, -10V Am-241 Data

All figures below show order for individual charges: Top row- Q1, Q2; Bottom row- Q3, Q4

Cut applied to the following analyses: Primary charge channel cut

No strict Chi2 cut was applied to spectra - only simple threshold cuts

-4V Bias
Fig. 1 - Charge (1000 a.u.) vs. Event Time (sec) at -4V Bias

Fig. 2 - Charge stdv vs. Event Time (sec) at -4V Bias

Fig. 3 - Chi2 vs. Event Time (sec) at -4V Bias

Fig. 4 - Chi2 vs. Charge (1000 a.u.) at -4V Bias

Fig. 5 - Charge Spectra (1000 a.u.) at -4V Bias

-6V Bias
Fig. 6 - Charge (1000 a.u.) vs. Event Time (sec) at -6V Bias

Fig. 7 - Charge stdv vs. Event Time (sec) at -6V Bias

Fig. 8 - Chi2 vs. Event Time (sec) at -6V Bias

Fig. 9 - Chi2 vs. Charge (1000 a.u.) at -6V Bias

Fig. 10 - Charge Spectra (1000 a.u.) at -6V Bias

-8V Bias
Fig. 11 - Charge (1000 a.u.) vs. Event Time (sec) at -8V Bias

Fig. 12 - Charge stdv vs. Event Time (sec) at -8V Bias

Fig. 13 - Chi2 vs. Event Time (sec) at -8V Bias

Fig. 14 - Chi2 vs. Charge (1000 a.u.) at -8V Bias

Fig. 15 - Charge Spectra (1000 a.u.) at -8V Bias

-10V Bias
Fig. 16 - Charge (1000 a.u.) vs. Event Time (sec) at -10V Bias

Fig. 17 - Charge stdv vs. Event Time (sec) at -10V Bias

Fig. 18 - Chi2 vs. Event Time (sec) at -10V Bias

Fig. 19 - Chi2 vs. Charge (1000 a.u.) at -10V Bias

Fig. 20 - Charge Spectra (1000 a.u.) at -10V Bias

The charge spectra from the 4 biases were over-layed to compare shifting/broadening of the spectra.