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2013/07/04

0057 Switched helium dewars.(Dewar #5) Helium in MB at 69%.
0107 Finished helium transfer. MB at 95.9%.
1230 Used break in data collection to fill LN2 coldtrap full. Currently: G1=69.1 mbar, G2=70.9mbar, 1KPot=1.593K, and Lakeshore/MC=70.5839K.
2001 Filled LN2 coldtrap full.

+/- 1V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Qsum and Qpart; Side 1 and Side 2; No cuts
Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and ChiSquared cut

-/+ 1V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Qsum and Qpart; Side 1 and Side 2; No cuts
Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and ChiSquared cut

+/- 1.5V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Qsum and Qpart; Side 1 and Side 2; No cuts
Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and ChiSquared cut

-/+ 1.5V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Qsum and Qpart; Side 1 and Side 2; No cuts
Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and ChiSquared cut

+/- 2V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Q_partition, side 1 and side 2 with low energy thresh cut
Fig. 2: Qsum 1, with thersh, q_partition and chi2 cuts
Fig. 3: Qsum 2, with thersh, q_partition and chi2 cuts
Fig. 4: Qsum 1 vs. Qsum 2

-/+ 2V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Q_partition, side 1 and side 2 with low energy thresh cut
Fig. 2: Qsum 1, with thersh, q_partition and chi2 cuts
Fig. 3: Qsum 2, with thersh, q_partition and chi2 cuts
Fig. 4: Qsum 1 vs. Qsum 2

+/- 3V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Q_partition, side 1 and side 2 with low energy thresh cut
Fig. 2: Qsum 1, with thersh, q_partition and chi2 cuts
Fig. 3: Qsum 2, with thersh, q_partition and chi2 cuts
Fig. 4: Qsum 1 vs. Qsum 2

-/+ 3V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Q_partition, side 1 and side 2 with low energy thresh cut
Fig. 2: Qsum 1, with thersh, q_partition and chi2 cuts
Fig. 3: Qsum 2, with thersh, q_partition and chi2 cuts
Fig. 4: Qsum 1 vs. Qsum 2

+/- 3.5V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Charge energy spectrum for +/-3.5V bias using threshold, Qpartition, and chi squared cuts.

-/+ 3.5V

* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241 and Pb_210 sources installed on side 2.

Fig. 1: Charge energy spectrum for -/+3.5V bias using threshold, Qpartition, and chi squared cuts.