NaI JD-766 Plateau

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Timing filter Amp Configuration

Course gain: x6

Fine gain: at minimum

Integrate (nS): 500nS

Diff (nS): Out

Invert/Noninverted: Non-Inv

Timing filter amp used to scale analog signal from NaI detector in plateau measurements

Dual Timer Configuration

Setup such that input discriminated pulse is at width ~200ns

Out feeds into scalar for counts

Top half of dual timer used to gate signal for scalar in plateau measurements

Plateau Data

700V

700V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +700V 05 No 958 60 15.97
2 Unshielded detector at +700V 15 No 278 60 4.63
3 Unshielded detector at +700V 35 No 107 60 1.78
4 Unshielded detector at +700V 55 No 85 60 1.42
5 Unshielded detector at +700V 75 No 80 60 1.33
6 Unshielded detector at +700V 95 No 80 60 1.33
7 Unshielded detector at +700V 115 No 75 60 1.25
8 Unshielded detector at +700V 135 No 78 60 1.3
9 Unshielded detector at +700V 155 No 82 60 1.37
10 Unshielded detector at +700V 175 No 77 60 1.28
11 Unshielded detector at +700V 195 No 66 60 1.1
12 Unshielded detector at +700V 215 No 68 60 1.13
13 Unshielded detector at +700V 235 No 53 60 0.88
14 Unshielded detector at +700V 255 No 59 60 0.98
700V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +700V 05 Yes 1033 60
2 Unshielded detector at +700V 15 Yes 291 60
3 Unshielded detector at +700V 35 Yes 102 60
4 Unshielded detector at +700V 55 Yes 87 60
5 Unshielded detector at +700V 75 Yes 88 60
6 Unshielded detector at +700V 95 Yes 103 60
7 Unshielded detector at +700V 115 Yes 101 60
8 Unshielded detector at +700V 135 Yes 84 60
9 Unshielded detector at +700V 155 Yes 72 60
10 Unshielded detector at +700V 175 Yes 57 60
11 Unshielded detector at +700V 195 Yes 72 60
12 Unshielded detector at +700V 215 Yes 68 60
13 Unshielded detector at +700V 235 Yes 74 60
14 Unshielded detector at +700V 255 Yes 52 60
700V Plots
Plateau measurements at 700V, source in and source out overlaid.
Plateau measurements at 700V, source in minus source out.
Signal to Noise ratio for 700V at different discriminator voltages

750V

750V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +750V 05 No 2211 60 36.85
2 Unshielded detector at +750V 15 No 1125 60 18.75
3 Unshielded detector at +750V 35 No 293 60 4.88
4 Unshielded detector at +750V 55 No 105 60 1.75
5 Unshielded detector at +750V 75 No 80 60 1.33
6 Unshielded detector at +750V 95 No 97 60 1.62
7 Unshielded detector at +750V 115 No 99 60 1.65
8 Unshielded detector at +750V 135 No 89 60 1.48
9 Unshielded detector at +750V 155 No 74 60 1.23
10 Unshielded detector at +750V 175 No 80 60 1.33
11 Unshielded detector at +750V 195 No 80 60 1.33
12 Unshielded detector at +750V 215 No 64 60 1.07
13 Unshielded detector at +750V 235 No 89 60 1.48
14 Unshielded detector at +750V 255 No 69 60 1.15
750V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +750V 05 Yes 4055 60
2 Unshielded detector at +750V 15 Yes 1160 60
3 Unshielded detector at +750V 35 Yes 301 60
4 Unshielded detector at +750V 55 Yes 102 60
5 Unshielded detector at +750V 75 Yes 82 60
6 Unshielded detector at +750V 95 Yes 114 60
7 Unshielded detector at +750V 115 Yes 85 60
8 Unshielded detector at +750V 135 Yes 93 60
9 Unshielded detector at +750V 155 Yes 87 60
10 Unshielded detector at +750V 175 Yes 87 60
11 Unshielded detector at +750V 195 Yes 79 60
12 Unshielded detector at +750V 215 Yes 90 60
13 Unshielded detector at +750V 235 Yes 84 60
14 Unshielded detector at +750V 255 Yes 73 60
750V Plots
Plateau measurements at 750V, source in and source out overlaid.
Plateau measurements at 750V, source in minus source out.
Signal to Noise ratio for 750V at different discriminator voltages

800V

800V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +800V 05 No 3866 60 64.43
2 Unshielded detector at +800V 15 No 2356 60 39.27
3 Unshielded detector at +800V 35 No 1091 60 18.18
4 Unshielded detector at +800V 55 No 384 60 6.4
5 Unshielded detector at +800V 75 No 244 60 4.07
6 Unshielded detector at +800V 95 No 167 60 2.78
7 Unshielded detector at +800V 115 No 100 60 1.67
8 Unshielded detector at +800V 135 No 88 60 1.47
9 Unshielded detector at +800V 155 No 89 60 1.48
10 Unshielded detector at +800V 175 No 86 60 1.43
11 Unshielded detector at +800V 195 No 90 60 1.5
12 Unshielded detector at +800V 215 No 81 60 1.35
13 Unshielded detector at +800V 235 No 95 60 1.58
14 Unshielded detector at +800V 255 No 89 60 1.48
800V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +800V 05 Yes 10055 60
2 Unshielded detector at +800V 15 Yes 5438 60
3 Unshielded detector at +800V 35 Yes 1078 60
4 Unshielded detector at +800V 55 Yes 375 60
5 Unshielded detector at +800V 75 Yes 217 60
6 Unshielded detector at +800V 95 Yes 126 60
7 Unshielded detector at +800V 115 Yes 100 60
8 Unshielded detector at +800V 135 Yes 93 60
9 Unshielded detector at +800V 155 Yes 99 60
10 Unshielded detector at +800V 175 Yes 96 60
11 Unshielded detector at +800V 195 Yes 102 60
12 Unshielded detector at +800V 215 Yes 99 60
13 Unshielded detector at +800V 235 Yes 62 60
14 Unshielded detector at +800V 255 Yes 85 60
800V Plots
Plateau measurements at 800V, source in and source out overlaid.
Plateau measurements at 800V, source in minus source out.
Signal to Noise ratio for 800V at different discriminator voltages

850V

850V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +850V 05 No 6402 60 106.7
2 Unshielded detector at +850V 15 No 3867 60 64.45
3 Unshielded detector at +850V 35 No 2058 60 34.3
4 Unshielded detector at +850V 55 No 1233 60 20.55
5 Unshielded detector at +850V 75 No 787 60 13.12
6 Unshielded detector at +850V 95 No 391 60 6.52
7 Unshielded detector at +850V 115 No 256 60 4.27
8 Unshielded detector at +850V 135 No 193 60 3.22
9 Unshielded detector at +850V 155 No 151 60 2.52
10 Unshielded detector at +850V 175 No 97 60 1.62
11 Unshielded detector at +850V 195 No 105 60 1.75
12 Unshielded detector at +850V 215 No 97 60 1.62
13 Unshielded detector at +850V 235 No 87 60 1.45
14 Unshielded detector at +850V 255 No 101 60 1.68
850V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +850V 05 Yes 15370 60
2 Unshielded detector at +850V 15 Yes 10298 60
3 Unshielded detector at +850V 35 Yes 2963 60
4 Unshielded detector at +850V 55 Yes 1366 60
5 Unshielded detector at +850V 75 Yes 842 60
6 Unshielded detector at +850V 95 Yes 402 60
7 Unshielded detector at +850V 115 Yes 281 60
8 Unshielded detector at +850V 135 Yes 196 60
9 Unshielded detector at +850V 155 Yes 143 60
10 Unshielded detector at +850V 175 Yes 98 60
11 Unshielded detector at +850V 195 Yes 88 60
12 Unshielded detector at +850V 215 Yes 101 60
13 Unshielded detector at +850V 235 Yes 104 60
14 Unshielded detector at +850V 255 Yes 101 60
850V Plots
Plateau measurements at 850V, source in and source out overlaid.
Plateau measurements at 850V, source in minus source out.
Signal to Noise ratio for 850V at different discriminator voltages

1000V

1000V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1000V 05 No 21167 60
2 Unshielded detector at +1000V 10 No 18739 60
3 Unshielded detector at +1000V 15 No 16091 60
4 Unshielded detector at +1000V 20 No 13773 60
5 Unshielded detector at +1000V 25 No 11983 60
6 Unshielded detector at +1000V 30 No 10358 60
7 Unshielded detector at +1000V 35 No 9274 60
8 Unshielded detector at +1000V 45 No 7423 60
9 Unshielded detector at +1000V 55 No 6067 60
10 Unshielded detector at +1000V 65 No 5258 60
11 Unshielded detector at +1000V 75 No 4451 60
12 Unshielded detector at +1000V 80 No 4321 60
13 Unshielded detector at +1000V 85 No 4111 60
14 Unshielded detector at +1000V 90 No 3823 60
15 Unshielded detector at +1000V 95 No 3666 60
16 Unshielded detector at +1000V 100 No 3466 60
17 Unshielded detector at +1000V 105 No 3241 60
18 Unshielded detector at +1000V 110 No 3180 60
19 Unshielded detector at +1000V 115 No 2968 60
20 Unshielded detector at +1000V 120 No 2812 60
21 Unshielded detector at +1000V 125 No 2769 60
22 Unshielded detector at +1000V 130 No 2548 60
23 Unshielded detector at +1000V 135 No 2426 60
24 Unshielded detector at +1000V 155 No 2065 60
25 Unshielded detector at +1000V 175 No 1843 60
26 Unshielded detector at +1000V 195 No 1582 60
27 Unshielded detector at +1000V 215 No 1374 60
28 Unshielded detector at +1000V 235 No 1172 60
29 Unshielded detector at +1000V 255 No 1012 60
1000V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1000V 05 Yes 34443 60
2 Unshielded detector at +1000V 10 Yes 30427 60
3 Unshielded detector at +1000V 15 Yes 26882 60
4 Unshielded detector at +1000V 20 Yes 23779 60
5 Unshielded detector at +1000V 25 Yes 21672 60
6 Unshielded detector at +1000V 30 Yes 19611 60
7 Unshielded detector at +1000V 35 Yes 18115 60
8 Unshielded detector at +1000V 45 Yes 15119 60
9 Unshielded detector at +1000V 55 Yes 12824 60
10 Unshielded detector at +1000V 65 Yes 11575 60
11 Unshielded detector at +1000V 75 Yes 10320 60
12 Unshielded detector at +1000V 80 Yes 9658 60
13 Unshielded detector at +1000V 85 Yes 9328 60
14 Unshielded detector at +1000V 90 Yes 8885 60
15 Unshielded detector at +1000V 95 Yes 8328 60
16 Unshielded detector at +1000V 100 Yes 7906 60
17 Unshielded detector at +1000V 105 Yes 7777 60
18 Unshielded detector at +1000V 110 Yes 7478 60
19 Unshielded detector at +1000V 115 Yes 7313 60
20 Unshielded detector at +1000V 120 Yes 7206 60
21 Unshielded detector at +1000V 125 Yes 6947 60
22 Unshielded detector at +1000V 130 Yes 6936 60
23 Unshielded detector at +1000V 135 Yes 6692 60
24 Unshielded detector at +1000V 155 Yes 2242 60
25 Unshielded detector at +1000V 175 Yes 1878 60
26 Unshielded detector at +1000V 195 Yes 1596 60
27 Unshielded detector at +1000V 215 Yes 1378 60
28 Unshielded detector at +1000V 235 Yes 1280 60
29 Unshielded detector at +1000V 255 Yes 1092 60
1000V Plots
Plateau measurements at 1000V, source in and source out overlaid.
Plateau measurements at 1000V, source in minus source out.
Signal to Noise ratio for 1000V at different discriminator voltages

1050V

Operating voltage when detectors used at IAC

1050V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1050V 05 No 22001 60
2 Unshielded detector at +1050V 10 No 20338 60
3 Unshielded detector at +1050V 15 No 18679 60
4 Unshielded detector at +1050V 20 No 16810 60
5 Unshielded detector at +1050V 25 No 15498 60
6 Unshielded detector at +1050V 30 No 14096 60
7 Unshielded detector at +1050V 35 No 13005 60
8 Unshielded detector at +1050V 45 No 10948 60
9 Unshielded detector at +1050V 55 No 9276 60
10 Unshielded detector at +1050V 65 No 8022 60
11 Unshielded detector at +1050V 75 No 7012 60
12 Unshielded detector at +1050V 80 No 6618 60
13 Unshielded detector at +1050V 85 No 6169 60
14 Unshielded detector at +1050V 90 No 5942 60
15 Unshielded detector at +1050V 95 No 5559 60
16 Unshielded detector at +1050V 100 No 5272 60
17 Unshielded detector at +1050V 105 No 4871 60
18 Unshielded detector at +1050V 110 No 4783 60
19 Unshielded detector at +1050V 115 No 4451 60
20 Unshielded detector at +1050V 120 No 4287 60
21 Unshielded detector at +1050V 125 No 4168 60
22 Unshielded detector at +1050V 130 No 4020 60
23 Unshielded detector at +1050V 135 No 3860 60
24 Unshielded detector at +1050V 155 No 3405 60
25 Unshielded detector at +1050V 175 No 3029 60
26 Unshielded detector at +1050V 195 No 2634 60
27 Unshielded detector at +1050V 215 No 2298 60
28 Unshielded detector at +1050V 235 No 2153 60
29 Unshielded detector at +1050V 255 No 2002 60
1050V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1050V 05 Yes 34250 60
2 Unshielded detector at +1050V 10 Yes 31439 60
3 Unshielded detector at +1050V 15 Yes 29093 60
4 Unshielded detector at +1050V 20 Yes 26912 60
5 Unshielded detector at +1050V 25 Yes 25185 60
6 Unshielded detector at +1050V 30 Yes 23568 60
7 Unshielded detector at +1050V 35 Yes 21921 60
8 Unshielded detector at +1050V 45 Yes 19174 60
9 Unshielded detector at +1050V 55 Yes 17314 60
10 Unshielded detector at +1050V 65 Yes 15339 60
11 Unshielded detector at +1050V 75 Yes 13939 60
12 Unshielded detector at +1050V 80 Yes 13280 60
13 Unshielded detector at +1050V 85 Yes 12649 60
14 Unshielded detector at +1050V 90 Yes 12203 60
15 Unshielded detector at +1050V 95 Yes 11962 60
16 Unshielded detector at +1050V 100 Yes 11217 60
17 Unshielded detector at +1050V 105 Yes 10733 60
18 Unshielded detector at +1050V 110 Yes 10347 60
19 Unshielded detector at +1050V 115 Yes 9953 60
20 Unshielded detector at +1050V 120 Yes 9691 60
21 Unshielded detector at +1050V 125 Yes 9551 60
22 Unshielded detector at +1050V 130 Yes 9147 60
23 Unshielded detector at +1050V 135 Yes 8840 60
24 Unshielded detector at +1050V 155 Yes 7735 60
25 Unshielded detector at +1050V 175 Yes 6970 60
26 Unshielded detector at +1050V 195 Yes 6587 60
27 Unshielded detector at +1050V 215 Yes 5559 60
28 Unshielded detector at +1050V 235 Yes 2341 60
29 Unshielded detector at +1050V 255 Yes 1966 60
1050V Plots
Plateau measurements at 1050V, source in and source out overlaid.
Plateau measurements at 1050V, source in minus source out.
Signal to Noise ratio for 1050V at different discriminator voltages

1100V

1100V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1100V 05 No 21898 60
2 Unshielded detector at +1100V 10 No 60
3 Unshielded detector at +1100V 15 No 60
4 Unshielded detector at +1100V 20 No 60
5 Unshielded detector at +1100V 25 No 60
6 Unshielded detector at +1100V 30 No 60
7 Unshielded detector at +1100V 35 No 60
8 Unshielded detector at +1100V 45 No 60
9 Unshielded detector at +1100V 55 No 60
10 Unshielded detector at +1100V 75 No 60
11 Unshielded detector at +1100V 95 No 60
12 Unshielded detector at +1100V 115 No 60
13 Unshielded detector at +1100V 135 No 60
14 Unshielded detector at +1100V 155 No 60
15 Unshielded detector at +1100V 175 No 60
16 Unshielded detector at +1100V 195 No 60
17 Unshielded detector at +1100V 215 No 60
18 Unshielded detector at +1100V 235 No 60
19 Unshielded detector at +1100V 255 No 60
1100V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1100V 05 Yes 35704 60
2 Unshielded detector at +1100V 10 Yes 32022 60
3 Unshielded detector at +1100V 15 Yes 30121 60
4 Unshielded detector at +1100V 20 Yes 28777 60
5 Unshielded detector at +1100V 25 Yes 27499 60
6 Unshielded detector at +1100V 30 Yes 26482 60
7 Unshielded detector at +1100V 35 Yes 25219 60
8 Unshielded detector at +1100V 45 Yes 23069 60
9 Unshielded detector at +1100V 55 Yes 21675 60
10 Unshielded detector at +1100V 75 Yes 18171 60
11 Unshielded detector at +1100V 95 Yes 15749 60
12 Unshielded detector at +1100V 115 Yes 13095 60
13 Unshielded detector at +1100V 135 Yes 11453 60
14 Unshielded detector at +1100V 155 Yes 10482 60
15 Unshielded detector at +1100V 175 Yes 9366 60
16 Unshielded detector at +1100V 195 Yes 8606 60
17 Unshielded detector at +1100V 215 Yes 7853 60
18 Unshielded detector at +1100V 235 Yes 7148 60
19 Unshielded detector at +1100V 255 Yes 6642 60
1100V Plots
Plateau measurements at 1100V, source in and source out overlaid.
Plateau measurements at 1100V, source in minus source out.
Signal to Noise ratio for 1100V at different discriminator voltages

1200V

1200V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1200V 05 No 24052 60
2 Unshielded detector at +1200V 15 No 20684 60
3 Unshielded detector at +1200V 35 No 18324 60
4 Unshielded detector at +1200V 55 No 17266 60
5 Unshielded detector at +1200V 75 No 15643 60
6 Unshielded detector at +1200V 95 No 14223 60
7 Unshielded detector at +1200V 115 No 12792 60
8 Unshielded detector at +1200V 135 No 11691 60
9 Unshielded detector at +1200V 155 No 10414 60
10 Unshielded detector at +1200V 175 No 9245 60
11 Unshielded detector at +1200V 195 No 8574 60
12 Unshielded detector at +1200V 215 No 7665 60
13 Unshielded detector at +1200V 235 No 7008 60
14 Unshielded detector at +1200V 255 No 6386 60
1200V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1200V 05 Yes 39450 60
2 Unshielded detector at +1200V 15 Yes 34061 60
3 Unshielded detector at +1200V 35 Yes 29029 60
4 Unshielded detector at +1200V 55 Yes 27672 60
5 Unshielded detector at +1200V 75 Yes 25935 60
6 Unshielded detector at +1200V 95 Yes 24104 60
7 Unshielded detector at +1200V 115 Yes 22223 60
8 Unshielded detector at +1200V 135 Yes 20670 60
9 Unshielded detector at +1200V 155 Yes 19168 60
10 Unshielded detector at +1200V 175 Yes 17920 60
11 Unshielded detector at +1200V 195 Yes 16383 60
12 Unshielded detector at +1200V 215 Yes 15066 60
13 Unshielded detector at +1200V 235 Yes 14130 60
14 Unshielded detector at +1200V 255 Yes 13382 60
1200V Plots
Plateau measurements at 1200V, source in and source out overlaid.
Plateau measurements at 1200V, source in minus source out.
Signal to Noise ratio for 1200V at different discriminator voltages

1300V

1300V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1300V 05 No 24651 60
2 Unshielded detector at +1300V 10 No 22487 60
3 Unshielded detector at +1300V 15 No 21029 60
4 Unshielded detector at +1300V 20 No 20535 60
5 Unshielded detector at +1300V 25 No 19313 60
6 Unshielded detector at +1300V 30 No 18947 60
7 Unshielded detector at +1300V 35 No 18654 60
8 Unshielded detector at +1300V 45 No 18405 60
9 Unshielded detector at +1300V 55 No 18078 60
10 Unshielded detector at +1300V 65 No 17830 60
11 Unshielded detector at +1300V 75 No 17463 60
12 Unshielded detector at +1300V 80 No 17303 60
13 Unshielded detector at +1300V 85 No 17542 60
14 Unshielded detector at +1300V 90 No 17342 60
15 Unshielded detector at +1300V 95 No 17276 60
16 Unshielded detector at +1300V 100 No 17350 60
17 Unshielded detector at +1300V 105 No 16885 60
18 Unshielded detector at +1300V 110 No 16842 60
19 Unshielded detector at +1300V 115 No 16801 60
20 Unshielded detector at +1300V 120 No 16599 60
21 Unshielded detector at +1300V 125 No 16283 60
22 Unshielded detector at +1300V 130 No 16292 60
23 Unshielded detector at +1300V 135 No 16165 60
24 Unshielded detector at +1300V 155 No 15329 60
25 Unshielded detector at +1300V 175 No 14452 60
26 Unshielded detector at +1300V 195 No 14130 60
27 Unshielded detector at +1300V 215 No 12954 60
28 Unshielded detector at +1300V 235 No 12155 60
29 Unshielded detector at +1300V 255 No 11392 60
1300V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1300V 05 Yes 36726 60
2 Unshielded detector at +1300V 10 Yes 33627 60
3 Unshielded detector at +1300V 15 Yes 31514 60
4 Unshielded detector at +1300V 20 Yes 30182 60
5 Unshielded detector at +1300V 25 Yes 29448 60
6 Unshielded detector at +1300V 30 Yes 28211 60
7 Unshielded detector at +1300V 35 Yes 27912 60
8 Unshielded detector at +1300V 45 Yes 26890 60
9 Unshielded detector at +1300V 55 Yes 26347 60
10 Unshielded detector at +1300V 65 Yes 26055 60
11 Unshielded detector at +1300V 75 Yes 25154 60
12 Unshielded detector at +1300V 80 Yes 25277 60
13 Unshielded detector at +1300V 85 Yes 25219 60
14 Unshielded detector at +1300V 90 Yes 25103 60
15 Unshielded detector at +1300V 95 Yes 25104 60
16 Unshielded detector at +1300V 100 Yes 25059 60
17 Unshielded detector at +1300V 105 Yes 24800 60
18 Unshielded detector at +1300V 110 Yes 24749 60
19 Unshielded detector at +1300V 115 Yes 24944 60
20 Unshielded detector at +1300V 120 Yes 24233 60
21 Unshielded detector at +1300V 125 Yes 24260 60
22 Unshielded detector at +1300V 130 Yes 23815 60
23 Unshielded detector at +1300V 135 Yes 23766 60
24 Unshielded detector at +1300V 155 Yes 23158 60
25 Unshielded detector at +1300V 175 Yes 22176 60
26 Unshielded detector at +1300V 195 Yes 21476 60
27 Unshielded detector at +1300V 215 Yes 20375 60
28 Unshielded detector at +1300V 235 Yes 19628 60
29 Unshielded detector at +1300V 255 Yes 18512 60
1300V Plots
Plateau measurements at 1300V, source in and source out overlaid.
Plateau measurements at 1300V, source in minus source out.
Signal to Noise ratio for 1300V at different discriminator voltages

1400V

1400V Source Out Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1400V 05 No 22873 60
2 Unshielded detector at +1400V 10 No 20892 60
3 Unshielded detector at +1400V 15 No 19899 60
4 Unshielded detector at +1400V 20 No 19398 60
5 Unshielded detector at +1400V 25 No 18861 60
6 Unshielded detector at +1400V 30 No 18587 60
7 Unshielded detector at +1400V 35 No 18053 60
8 Unshielded detector at +1400V 45 No 17563 60
9 Unshielded detector at +1400V 55 No 17356 60
10 Unshielded detector at +1400V 65 No 17347 60
11 Unshielded detector at +1400V 75 No 17329 60
12 Unshielded detector at +1400V 80 No 17164 60
13 Unshielded detector at +1400V 85 No 17146 60
14 Unshielded detector at +1400V 90 No 17268 60
15 Unshielded detector at +1400V 95 No 17234 60
16 Unshielded detector at +1400V 100 No 17231 60
17 Unshielded detector at +1400V 105 No 17119 60
18 Unshielded detector at +1400V 110 No 17119 60
19 Unshielded detector at +1400V 115 No 16956 60
20 Unshielded detector at +1400V 120 No 17135 60
21 Unshielded detector at +1400V 125 No 16680 60
22 Unshielded detector at +1400V 130 No 17093 60
23 Unshielded detector at +1400V 135 No 16893 60
24 Unshielded detector at +1400V 155 No 16909 60
25 Unshielded detector at +1400V 175 No 16489 60
26 Unshielded detector at +1400V 195 No 16340 60
27 Unshielded detector at +1400V 215 No 15683 60
28 Unshielded detector at +1400V 235 No 15707 60
29 Unshielded detector at +1400V 255 No 15411 60
1400V Source In Data
Run Number Configuration Discriminator Threshold (mV) Cs-137 Button Source Counts Run Time (Sec) Count Rate (Hz)
1 Unshielded detector at +1400V 05 Yes 36948 60
2 Unshielded detector at +1400V 10 Yes 33637 60
3 Unshielded detector at +1400V 15 Yes 31769 60
4 Unshielded detector at +1400V 20 Yes 30477 60
5 Unshielded detector at +1400V 25 Yes 28817 60
6 Unshielded detector at +1400V 30 Yes 28523 60
7 Unshielded detector at +1400V 35 Yes 27931 60
8 Unshielded detector at +1400V 45 Yes 26824 60
9 Unshielded detector at +1400V 55 Yes 26639 60
10 Unshielded detector at +1400V 65 Yes 25810 60
11 Unshielded detector at +1400V 75 Yes 26154 60
12 Unshielded detector at +1400V 80 Yes 26157 60
13 Unshielded detector at +1400V 85 Yes 25888 60
14 Unshielded detector at +1400V 90 Yes 25679 60
15 Unshielded detector at +1400V 95 Yes 25026 60
16 Unshielded detector at +1400V 100 Yes 25533 60
17 Unshielded detector at +1400V 105 Yes 25389 60
18 Unshielded detector at +1400V 110 Yes 25223 60
19 Unshielded detector at +1400V 115 Yes 24894 60
20 Unshielded detector at +1400V 120 Yes 25054 60
21 Unshielded detector at +1400V 125 Yes 25116 60
22 Unshielded detector at +1400V 130 Yes 25117 60
23 Unshielded detector at +1400V 135 Yes 24980 60
24 Unshielded detector at +1400V 155 Yes 24495 60
25 Unshielded detector at +1400V 175 Yes 24411 60
26 Unshielded detector at +1400V 195 Yes 24345 60
27 Unshielded detector at +1400V 215 Yes 23909 60
28 Unshielded detector at +1400V 235 Yes 23306 60
29 Unshielded detector at +1400V 255 Yes 23191 60
1400V Plots
Plateau measurements at 1400V, source in and source out overlaid.
Plateau measurements at 1400V, source in minus source out.
Signal to Noise ratio for 1400V at different discriminator voltages


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NaI_JD-766

NaI_Plateau

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