2013/07/10
| 910 | Filled LN2 cold trap |
|---|---|
| 1050 | Start circulating the mixture. |
| 1405 | Commence data acquisition: flash for 1 hour followed by 2 hours cool-down; 6 series at +/-2.5 V bias followed by 6 series at -/+2.5 V, repeat for 3V, 3.5V (+/- and then -/+ for each bias); OR trigger on Qi and Qo channels; DIB 1 trigger at 32 ADC bins, DIB 2 trigger at 28 ADC bins; 10/0.1/20 minutes acquisition/flash/cool-down cycle. |
| 1420 | Begin LHe transfer (-1%). |
| 1510 | End LHe transfer (96.3%). |
| 1549 | Ba-133 source removed from safe and placed 6“ below metal shield on dewar, in corner furthest from working area. |
| 1731 | Took advantage of break in data taking to fill LN2 coldtrap full. |
+/- 2.5 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
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| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
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| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
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| Fig. 4: Qsum1 vs. Qsum2. |
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| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
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 |
-/+ 2.5 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
|---|
 |
| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
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 |
| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
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 |
| Fig. 4: Qsum1 vs. Qsum2. |
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 |
| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
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 |
+/- 3 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
|---|
 |
| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
|---|
 |
| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
|---|
 |
| Fig. 4: Qsum1 vs. Qsum2. |
|---|
 |
| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
|---|
 |
-/+ 3 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
|---|
 |
| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
|---|
 |
| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
|---|
 |
| Fig. 4: Qsum1 vs. Qsum2. |
|---|
 |
| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
|---|
| |
+/- 3.5 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
|---|
 |
| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
|---|
 |
| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
|---|
 |
| Fig. 4: Qsum1 vs. Qsum2. |
|---|
 |
| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
|---|
 |
-/+ 3.5 V
* total exposure time: 60 minutes
* OR trigger on Qi and Qo channels (32/28 ADC bins for Dib 1/2)
* Am_241, Pb_210 and Ba_133 sources installed on side 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: Q_partition plot for side 1 and side 2, thresh cut. |
|---|
 |
| Fig. 2: Qsum histogram histograms for side 1, all individual quality cuts. |
|---|
 |
| Fig. 3: Qsum histogram histograms for side 2, all individual quality cuts. |
|---|
 |
| Fig. 4: Qsum1 vs. Qsum2. |
|---|
 |
| Fig. 5: Qsum1, Qsum2 vs chi2, thresh + qpart cuts |
|---|
 |