Difference between revisions of "LB May 2017 Det B Efficiency"

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−
: <math>\left (0.329 \right )\left ( 5.87 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)= 71455.51 Hz </math> for the 80.9979 keV line
+
: <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 ( 5.87 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)=  39745.77 Hz </math> for the 302.8508 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 ( 5.87 \times 10^{-6} \mbox{Ci} \right) \left (\frac{ (3.7 \times 10^{10} \mbox{Hz}}{\mbox{Ci}} \right)=  134874.99 Hz </math> for the 356.0129 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=
 
=Actual Efficiency=
Line 29: Line 29:
 
|  Run || Source || Energy (keV) || Channel #||Position ||  Expected Rate (Hz) ||ROOT Window (by channel #) || HpGe Rate (Hz) || HpGe Detector A Efficiency (%)   
 
|  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_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 || 92 || 90cm From Detector A || 71455,51 || [88,98] || 58.37 +\- 0.15 || 0.08 
+
||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 || 71455.51 || [88,98] || 50.07 +/- 0.19 || 0.07
+
||Ba133_DetA_Pos70_DetB_PosD_Efficiency.root || Ba-133 || 80.9979 || 104 || Position D on Detector B || 103830.69 || [96,108] || 74.39 +/- 0.3553 || 0.0716
 
|-
 
|-
−
||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_Pos50_DetB_PosC_Efficiency.root || Ba-133 || 80.9979 || 104 || Position C on Detector B || 103830.69 || [96,108] || 82.69 +/- 0.4357 || 0.0796
 
|-
 
|-
−
||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_Pos44cm_DetB_PosA_Efficiency.root || Ba-133 || 80.9979 ||104|| Position A on Detector B || 103830.69 || [96,108]] || 142.37 +/- 0.6403 || 0.1371
 
|-
 
|-
−
||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_Farthest_DetB_posN_Efficiency.root || Ba-133 || 302.85 || 372 || Position N on Detector B || 57882.874 || [360,385] ||2.68 +/- 0.07947 || 0.0046
 
|-
 
|-
−
||Ba133_DetA_Pos20_Efficiency.root || Ba-133 || 80.9979 || 92 || 20cm From Detector A || 71455.51 || [88,98] || 478.73 +/- 0.8439 || 0.70
+
||Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root || Ba-133 || 302.85 || 372 || 23.6cm From Detector B || 57882.874 || [360,385] || 35.55 +/- 0.4194 || 0.0614
 
|-
 
|-
−
||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_Pos70_DetB_PosD_Efficiency.root || Ba-133 || 302.85 || 372 || Position D on Detector B || 57882.874 || [360,385] || 10.52 +/- 0.2420 || 0.01817
 
|-
 
|-
−
||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_Pos50_DetB_PosC_Efficiency.root || Ba-133 || 302.85 ||372 || Position C on Detector B || 57882.874 || [360,385]] || 12.70 +/- 0.3036 || 0.0219
 
|-
 
|-
−
||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_Pos44cm_DetB_PosA_Efficiency.root || Ba-133 || 302.85 || 372 || Position A on Detector B || 57882.874 || [360,385] || 19.30 +/- 0.4461 || 0.0333
 
|-
 
|-
−
||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_Farthest_DetB_posN_Efficiency.root || Ba-133 ||356.0129  || 437 || Position N on Detector B || 195836.005 || [400,460] || 7.54 +/- 0.1260 || 0.0005
 
|-
 
|-
−
||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_Pos90_DetB_23_6cm_Efficiency.root || Ba-133 || 356.0129 || 437 || 23.6cm From Detector B || 195836.005 || [400,460] || 98.54 +/- 0.7217 || 0.0503
 
|-
 
|-
−
||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_Pos70_DetB_PosD_Efficiency.root || Ba-133 || 356.0129 || 437 || Position D on Detector B || 195836.005 || [400,460] || 28.45 +/- 0.4035 || 0.0145
 
|-
 
|-
−
||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_Pos50_DetB_PosC_Efficiency.root || Ba-133 || 356.0129 || 437 || Position C on Detector B || 195836.005 ||[400,460] || 34.6716 +/- 0.5027 || 0.0177
 
|-
 
|-
−
||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_Pos44cm_DetB_PosA_Efficiency.root || Ba-133 || 356.0129 || 437 || Position A on Detector B || 195836.005 || [400,460] || 53.1100 +/- 0.7534 || 0.0271
−
|-
 
−
||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
 
 
|-
 
|-
 
|}
 
|}

Latest revision as of 01:28, 1 September 2017

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 104 Position D on Detector B 103830.69 [96,108] 74.39 +/- 0.3553 0.0716
Ba133_DetA_Pos50_DetB_PosC_Efficiency.root Ba-133 80.9979 104 Position C on Detector B 103830.69 [96,108] 82.69 +/- 0.4357 0.0796
Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root Ba-133 80.9979 104 Position A on Detector B 103830.69 [96,108]] 142.37 +/- 0.6403 0.1371
Ba133_DetA_Farthest_DetB_posN_Efficiency.root Ba-133 302.85 372 Position N on Detector B 57882.874 [360,385] 2.68 +/- 0.07947 0.0046
Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root Ba-133 302.85 372 23.6cm From Detector B 57882.874 [360,385] 35.55 +/- 0.4194 0.0614
Ba133_DetA_Pos70_DetB_PosD_Efficiency.root Ba-133 302.85 372 Position D on Detector B 57882.874 [360,385] 10.52 +/- 0.2420 0.01817
Ba133_DetA_Pos50_DetB_PosC_Efficiency.root Ba-133 302.85 372 Position C on Detector B 57882.874 [360,385]] 12.70 +/- 0.3036 0.0219
Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root Ba-133 302.85 372 Position A on Detector B 57882.874 [360,385] 19.30 +/- 0.4461 0.0333
Ba133_DetA_Farthest_DetB_posN_Efficiency.root Ba-133 356.0129 437 Position N on Detector B 195836.005 [400,460] 7.54 +/- 0.1260 0.0005
Ba133_DetA_Pos90_DetB_23_6cm_Efficiency.root Ba-133 356.0129 437 23.6cm From Detector B 195836.005 [400,460] 98.54 +/- 0.7217 0.0503
Ba133_DetA_Pos70_DetB_PosD_Efficiency.root Ba-133 356.0129 437 Position D on Detector B 195836.005 [400,460] 28.45 +/- 0.4035 0.0145
Ba133_DetA_Pos50_DetB_PosC_Efficiency.root Ba-133 356.0129 437 Position C on Detector B 195836.005 [400,460] 34.6716 +/- 0.5027 0.0177
Ba133_DetA_Pos44cm_DetB_PosA_Efficiency.root Ba-133 356.0129 437 Position A on Detector B 195836.005 [400,460] 53.1100 +/- 0.7534 0.0271
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