Experimental Setup
| Attenuation Measurements Setup |
|
 Poly box to contain Cf-252 source for attenuation measurements |
[[File:|400px|thumb|none|He3 tube mounting for attenuation measurements ]] |
[[File: |300px|thumb|none| ]]
|
| [[File:|300px|thumb|none| ]] |
 Top down view of Cf-252 source in place, ready to be covered by top sheet of virgin poly |
[[File: |300px|thumb|none| ]]
|
Measurements
Background Measurements
I will be performing background runs overnight due to the low amount of background counts. This
| 1250V Source Out Data |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Button Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on BorAl at +1250V |
255 |
No |
|
|
|
|
Source In
No thermalizer, no borated poly, just BorAl shielding around detector
| 1250V Source In Data |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on BorAl at +1250V |
255 |
Yes |
236 |
300 |
|
|
| 2 |
Detector on BorAl at +1250V |
255 |
Yes |
263 |
60 |
|
|
| 3 |
Detector on BorAl at +1250V |
255 |
Yes |
251 |
60 |
|
|
| 4 |
Detector on BorAl at +1250V |
255 |
Yes |
203 |
60 |
|
|
| 5 |
Detector on BorAl at +1250V |
255 |
Yes |
218 |
60 |
|
|
Source In with Thermalizer
Thermalizer, no borated poly, & BorAl shielding around detector
| 1250V Source In Data |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on BorAl at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on BorAl at +1250V |
255 |
Yes |
|
60 |
|
|
| 3 |
Detector on BorAl at +1250V |
255 |
Yes |
|
60 |
|
|
| 4 |
Detector on BorAl at +1250V |
255 |
Yes |
|
60 |
|
|
| 5 |
Detector on BorAl at +1250V |
255 |
Yes |
|
60 |
|
|
Green Poly without Thermalizer
1" Green poly, no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
2" Green poly (one brick) no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
154 |
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
163 |
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
150 |
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
3" Green poly (one brick & sheet) no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
4" Green poly (two bricks) no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
6" Green poly (three bricks) no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
8" Green poly (four bricks) no thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
Green Poly with Thermalizer
1" Green poly, with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
2" Green poly (one brick) with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
3" Green poly (one brick & sheet) with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
4" Green poly (two bricks) with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
6" Green poly (three bricks) with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
8" Green poly (four bricks) with thermalizer
| 1250V source in |
|
| Run Number |
Configuration |
Discriminator Threshold (mV) |
Cf-252 Source |
Counts |
Run Time (Sec) |
Count Rate (Hz) |
Uncertainty
|
| 1 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 2 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 3 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 4 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
| 5 |
Detector on poly at +1250V |
255 |
Yes |
|
300 |
|
|
Go Back
CH He3 Attenuation Measurements
PAS Experiment Attenuation Measurements
PAS_He3_Detector
PAS_Experiment
