2013/07/01
This new wiki setup weirds me out.
| 1020 | Filled LN2 cold trap full. |
| 1034 | Begin flashing detectors. |
| 1145 | Began LHe transfer (11.0%) |
| 1225 | Finished LHe transfer (36.0%) |
| 1312 | Began LHe transfer (36.0%) |
| 1345 | Finished LHe transfer (89.9%) |
| 1642 | Stopped flashing detectors. |
| 1842 | Filled LN2 coldtrap full. |
| 2029 | Commence data acquisition: 6 series at +/-1 V bias followed by 6 series at -/+1 V, repeat for 1.5V, 2V, and 3V (+/- and -/+); OR trigger on Qi channels only; DIB 1 trigger at 32 ADC bins, DIB 2 trigger at 28 ADC bins; 10/0.1/20 minutes acquisition/flash/cool-down cycle. |
Data Analysis
+/- 1V
| Fig. 1: Charge spectrum for +/-1V bias using Threshold, QPartition, and Chi Squared cuts. |
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-/+ 1V
| Fig. 2: Charge spectrum for -/+1V bias using Threshold, QPartition, and Chi Squared cuts. |
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+/- 1.5V
| Fig. 3: Charge spectrum for +/-1.5V bias using Threshold, QPartition, and Chi Squared cuts. |
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-/+ 1.5V
| Fig. 4: Charge spectrum for -/+1.5V bias using Threshold, QPartition, and Chi Squared cuts. |
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+/- 2V
| total exposure time: 60 minutes |
| OR trigger on Qi channels (32/28 ADC bins for Dib 1/2) |
Am_241 and Pb_210 sources installed on side 2.
CUT DEFINITIONS:
thresh cut, Qsum > 0.00025 au where Qsum = Qi + Qo
Q_partition cut, .9 < Q_partition < 1.01
Chi_2, visual cut
| Fig. 1: Qsum histogram, side 1, all individual quality cuts. |
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| Fig. 2: Qsum histogram, side 2, all individual quality cuts. |
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| Fig. 3: Qsum1 vs. Qsum2. |
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-/+ 2V
| total exposure time: 60 minutes |
| OR trigger on Qi channels (32/28 ADC bins for Dib 1/2) |
Am_241 and Pb_210 sources installed on side 2.
CUT DEFINITIONS:
thresh cut, Qsum > 0.00025 au where Qsum = Qi + Qo
Q_partition cut, .9 < Q_partition < 1.01
Chi_2, visual cut
| Fig. 1: Qsum histogram, side 1, all individual quality cuts. |
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| Fig. 2: Qsum histogram, side 2, all individual quality cuts. |
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| Fig. 3: Qsum1 vs. Qsum2. |
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+/- 3V
| total exposure time: 60 minutes |
| OR trigger on Qi 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 |
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| Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and Chi | 2 cut |
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-/+ 3V
| total exposure time: 60 minutes |
| OR trigger on Qi 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 |
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| Fig. 2: Qsum; Side 1 and Side 2; Qinner cut and ChiSquared cut |
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