LB May 2017 Det A Efficiency
DetB Calibration is A = -2.8392 +/- 0.592828 , B = 0.815444 +/- 0.000630482
Det A Intercept = -12.208800 slope =1.021270
Theoretical Activities
Ba-133, 10.54 uCi on July 1, 2008, half life 10.51 years, 32.9% for 80.9979 keV line, 18.34% for 302.8508 keV line, 62.05% for the 356.0129 keV line. The sample serial # 129791 had an activity of 5.87 uCi on May 27, 2017
- for the 80.9979 keV line
- for the 302.8508 keV line
- for the 302.8508 keV line
Actual Efficiency
There is a small issue with the calibration when plotting the results in ROOT. The binning along with the calibration create a picket fencing effect that incorrectly displays the results. The effect is shown below.
| Run | Source | Energy (keV) | Channel # | Position | Expected Rate (Hz) | ROOT Window (by channel #) | HpGe Rate (Hz) | HpGe Detector A Efficiency (%) |
| Ba133_DetA_Farthest_DetB_posN_Efficiency.root | Ba-133 | 80.9979 | 92 | Farthest Back Position on Detector A | 71455.51 | [88,98] | 25.78 +/- 0.078 | 0.0036 |
| Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root | Ba-133 | 80.9979 | 92 | 90cm From Detector A | 71455,51 | [88,98] | 58.37 +\- 0.15 | 0.08 |
| Ba133_DetA_Pos70_DetB_PosD_Efficiency.root | Ba-133 | 80.9979 | 92 | 70cm From Detector A | 71455.51 | [88,98] | 50.07 +/- 0.19 | 0.07 |
| Ba133_DetA_Pos50_DetB_PosC_Efficiency.root | Ba-133 | 80.9979 | 92 | 50cm From Detector A | 71455.51 | [88,98] | 142.85 +/- 0.28 | 0.20 |
| Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root | Ba-133 | 80.9979 | 92 | 44cm From Detector A | 71455.51 | [88,98]] | 206.97 +/- 0.38 | 0.29 |
| Ba133_DetA_Pos30_Efficiency.root | Ba-133 | 80.9979 | 92 | 30cm From Detector A | 71455.51 | [88,98] | 235.49 +/- 0.79 | 0.33 |
| Ba133_DetA_Pos20_Efficiency.root | Ba-133 | 80.9979 | 92 | 20cm From Detector A | 71455.51 | [88,98] | 478.73 +/- 0.8439 | 0.70 |