LB May 2017 Det B Efficiency

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, 9.821 uCi on April 7, 2015, 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 # 1235-74-3 had an activity of 8.53 uCi on May 27, 2017

[math]\left (0.329 \right )\left ( 8.53 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)= 103835.69 Hz [/math] for the 80.9979 keV line

[math]\left (0.1834 \right )\left ( 8.53 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)= 57882.874 Hz [/math] for the 302.8508 keV line

[math]\left (0.6205 \right )\left ( 8.53 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)= 195836.005 Hz [/math] for the 356.0129 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	104	Position N on Detector B	103835.69	[96,108]	52.08 +/- 0.12	0.0562
Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root	Ba-133	80.9979	104	23.6cm From Detector B	103835.69	[96,108]	351.95 +/- 0.6079	0.3389
Ba133_DetA_Pos70_DetB_PosD_Efficiency.root	Ba-133	80.9979	92	70cm From Detector A	103830.69	[88,98]	50.07 +/- 0.19	0.07
Ba133_DetA_Pos50_DetB_PosC_Efficiency.root	Ba-133	80.9979	92	50cm From Detector A	103830.69	[88,98]	142.85 +/- 0.28	0.20
Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root	Ba-133	80.9979	92	44cm From Detector A	103830.69	[88,98]]	206.97 +/- 0.38	0.29
Ba133_DetA_Pos30_Efficiency.root	Ba-133	80.9979	92	30cm From Detector A	103830.69	[88,98]	235.49 +/- 0.79	0.33
Ba133_DetA_Pos20_Efficiency.root	Ba-133	80.9979	92	20cm From Detector A	103830.69	[88,98]	478.73 +/- 0.8439	0.70
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