Difference between revisions of "BriansRanLogbook"

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| 1.503 || 5.4 ± 2.22 || 105.7 ± 8.63
 
| 1.503 || 5.4 ± 2.22 || 105.7 ± 8.63
 
|-
 
|-
−
| 1.227 || 7.9 ± 3.14 || 109.8 +± 9.34
+
| 1.227 || 7.9 ± 3.14 || 109.8 ± 9.34
 
|-
 
|-
 
| 1.009 || 89.9 ± 7.87 || 234.1 ± 20.06
 
| 1.009 || 89.9 ± 7.87 || 234.1 ± 20.06
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2/10/23
 
2/10/23
 
Same procedure as 2/3/23, just changing HV applied to He3 detector to values of 1300V then 1100V.
 
Same procedure as 2/3/23, just changing HV applied to He3 detector to values of 1300V then 1100V.
 +
 +
 +
{| class="wikitable"
 +
|+ He3 Counts vs Voltage (1100 HV)
 +
|-
 +
! Discriminator Voltage (V) !! Counts/10s (with source) !! Counts/10s (no source)
 +
|-
 +
| 1.971 || 4.6 ± 2.37 || 107.7 ± 13.17
 +
|-
 +
| 1.775 || 7.7 ± 2.11 || 100 ± 10.70
 +
|-
 +
| 1.486 || 5.5 ± 2.32 || 104.8 ± 12.79
 +
|-
 +
| 1.248 || 4.7 ± 2.00 || 99.6 ± 7.09
 +
|-
 +
| 1.013 || 75.2 ± 12.17 || 171 ± 12.82
 +
|-
 +
| 0.762 || 3074 ± 143.0 || 2833 ± 894.7
 +
|-
 +
| 0.509 || 19658 ± 424.6 || 40290 ± 2402
 +
|}
 +
 +
{| class="wikitable"
 +
|+ He3 Counts vs Voltage (1300 HV)
 +
|-
 +
! Discriminator Voltage (V) !! Counts/10s (with source) !! Counts/10s (no source)
 +
|-
 +
| 1.971 || 5.4 ± 1.78 || 111.3 ± 9.97
 +
|-
 +
| 1.773 || 5.3 ± 1.89 || 97.3 ± 7.70
 +
|-
 +
| 1.524 || 7.1 ± 4.51 || 99.7 ± 11.78
 +
|-
 +
| 1.275 || 12.2 ± 3.55 || 117.3 ± 23.11
 +
|-
 +
| 0.993 || 177.7 ± 8.18 || 351.9 ± 28.71
 +
|-
 +
| 0.784 || 2691.2 ± 114.7 || 2763.7 ± 126.2
 +
|-
 +
| 0.485 || 50346 ± 3831 || 53920 ± 4354
 +
|}

Revision as of 19:54, 20 February 2023

This is where I write down what I'm doing


1/13/23 : Turned on HpGe HV to 1500 and learned about analog to digital signal processing


detected signal rate -vs- HpGe Voltage

Cs-137 source on face of HpGe detector

HV Counts
1492.67 1532.5 +/- 36.67
799.15 1336.5 +/- 2.121
396.83 1193.5 +/- 54.477
197.19 1035.5 +/- 40.305
4.88 562.5 +/- 2.121

NO source on face of HpGe detector

HV Counts
1492.67 167.5 +/- 7.778
799.15 149.4 +/- 34.648
396.83 127.5 +/- 7.778
197.19 121 +/- 4.243
4.88 332 +/- 35.355

HV on He3: 1208V

Amplifier Gain: 21.5

He3 Tube

1/27/23 : Turned on He3 detector, adjusted to find counts with Cf source in containment and out of containment

2/3/23 : Same as 1/27, adjusting discriminator voltage and recording counts with Cf-252 source. Encountered strange effects of higher counts with source away at low QD voltage. Sets of measurements notably inconsistent.

He3 Counts vs Voltage (1208 HV)
Discriminator Voltage (V) Counts/10s (with source) Counts/10s (no source)
2.003 4.4 ± 1.67 97.0 ± 8.49
1.788 4.8 ± 1.09 108.2 ± 10.89
1.503 5.4 ± 2.22 105.7 ± 8.63
1.227 7.9 ± 3.14 109.8 ± 9.34
1.009 89.9 ± 7.87 234.1 ± 20.06
0.799 2656 ± 251.1 2447 ± 183.0
0.485 55479 ± 1325 48360 ± 1938

2/10/23 Same procedure as 2/3/23, just changing HV applied to He3 detector to values of 1300V then 1100V.


He3 Counts vs Voltage (1100 HV)
Discriminator Voltage (V) Counts/10s (with source) Counts/10s (no source)
1.971 4.6 ± 2.37 107.7 ± 13.17
1.775 7.7 ± 2.11 100 ± 10.70
1.486 5.5 ± 2.32 104.8 ± 12.79
1.248 4.7 ± 2.00 99.6 ± 7.09
1.013 75.2 ± 12.17 171 ± 12.82
0.762 3074 ± 143.0 2833 ± 894.7
0.509 19658 ± 424.6 40290 ± 2402
He3 Counts vs Voltage (1300 HV)
Discriminator Voltage (V) Counts/10s (with source) Counts/10s (no source)
1.971 5.4 ± 1.78 111.3 ± 9.97
1.773 5.3 ± 1.89 97.3 ± 7.70
1.524 7.1 ± 4.51 99.7 ± 11.78
1.275 12.2 ± 3.55 117.3 ± 23.11
0.993 177.7 ± 8.18 351.9 ± 28.71
0.784 2691.2 ± 114.7 2763.7 ± 126.2
0.485 50346 ± 3831 53920 ± 4354
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