# LB May 2017 Det A Efficiency

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DetB Calibration is A = -2.8392 +/- 0.592828 , B = 0.815444 +/- 0.000630482

Det A Intercept = -12.208800 slope =1.021270

Detector A is ADCid 0

Detector B is ADCid 1

# 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 356.0129 keV line

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 5.75 uCi on September 6, 2017

for the 80.9979 keV line

for the 302.8508 keV line
for the 356.0129 keV line

Co-60, 10.42 uCi on July 1, 2008, half life 1925.5253 days, 99.9826% for 1332.492 keV line. The sample serial # 129790 had an activity of 2.72 uCi on September 14, 2017

for the 1332 keV line

Co-60, 1.082 uCi on July 1, 2008, half life 1925.5253 days, 99.9826% for 1332.492 keV line. The sample serial # 129739 had an activity of 0.283 uCi on September 15, 2017

for the 1332 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 +\- 0.0011 Ba133_Pos10_9_6_17.root Ba-133 80.9979 92 10cm From Detector A 69994.75 [88,98] 605.39 +/- 4.53 0.86 Ba133_DetA_Farthest_DetB_posN_Efficiency.root Ba-133 302.85 310 Farthest Position On Detector A 39745.77 [305,315] 11.49 +/- 0.0110 0.0289 Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root Ba-133 302.85 310 90cm From Detector A 39745.77 [305,315] 12.645 +/- 0.0227 0.0318 Ba133_DetA_Pos70_DetB_PosD_Efficiency.root Ba-133 302.85 310 70cm From Detector A 39745.77 [305,315] 20.35 +/- 0.0223 0.0512 Ba133_DetA_Pos50_DetB_PosC_Efficiency.root Ba-133 302.85 310 50cm From Detector A 39745.77 [305,315]] 40.06 +/- 0.0260 0.1008 Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root Ba-133 302.85 310 44cm From Detector A 39745.77 [305,315] 49.86 +/- 0.0287 0.1254 Ba133_DetA_Pos30_Efficiency.root Ba-133 302.85 310 30cm From Detector A 39745.77 [305,315] 99.76 +/- 0.0393 0.2510 Ba133_DetA_Pos20_Efficiency.root Ba-133 302.85 310 20cm From Detector A 39745.77 [305,315] 196.45 +/- 0.0529 0.4943 Ba133_DetA_Farthest_DetB_posN_Efficiency.root Ba-133 356.0129 361.6 Farthest Position Det A 134874.99 [350,375] 34.9876 +/- 0.0140 0.0259 Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root Ba-133 356.0129 361.6 90cm From Detector A 134874.99 [350,375] 38.60 +/- 0.0259 0.0286 Ba133_DetA_Pos70_DetB_PosD_Efficiency.root Ba-133 356.0129 361.6 70cm From Detector A 134874.99 [350,375] 62.32 +/- 0.0263 0.0462 Ba133_DetA_Pos50_DetB_PosC_Efficiency.root Ba-133 356.0129 361.6 50cm From Detector A 134874.99 [350,375] 118.74 +/- 0.0289 0.0880 Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root Ba-133 356.0129 361.6 44cm From Detector A 134874.99 [350,375] 148.53 +/- 0.0356 0.1101 Ba133_DetA_Pos30_Efficiency.root Ba-133 356.0129 361.6 30cm From Detector A 134874.99 [350,375] 292.32 +/- 0.0537 0.2167 Ba133_DetA_Pos20_Efficiency.root Ba-133 356.0129 361.6 20cm From Detector A 134874.99 [350,375] 582.39 +/- 0.0563 0.4318 Co60_Pos70_9_14_17.root Co-60 1332.492 1319.9 70cm from Detector A 100622.49 [1300,1340] 8.95 +\- 0.18 0.0089 Co60_Pos50_9_14_17.root Co-60 1332.492 1319.9 50cm from Detector A 100622.49 [1300,1340] 17.18 +\- 0.20 0.0170 Co60_Pos30_9_14_17.root Co-60 1332.492 1319.9 30cm from Detector A 100622.49 [1300,1340] 42.45 +\- 0.47 0.0422 Co60_Pos20_9_14_17.root Co-60 1332.492 1319.9 20cm from Detector A 100622.49 [1300,1340] 85.20 +\- 0.71 0.0847 Co60_DetA_Pos10_9_6_17.root Co-60 1332.492 1319.9 10cm from Detector A 100622.49 [1300,1340] Co60_Pos10_DetA_9_15_17.root Co-60 1332.492 1319.9 10cm from Detector A 10469.187 [1300,1340] 32.76 +\- 0.338 0.31