Difference between revisions of "CH He3 Attenuation Measurements Revisited"
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|- | |- | ||
| [[File:NaI_700V_Plateau.png|300px|thumb|left|Plateau measurements at 700V, source in and source out overlaid. ]] || [[File:NaI_700V_Background_Subtracted_Plateau.png|300px|thumb|center|Plateau measurements at 700V, source in minus source out. ]] || [[File:NaI_700V_STN.png|300px|thumb|none|Signal to Noise ratio for 700V at different discriminator voltages ]] | | [[File:NaI_700V_Plateau.png|300px|thumb|left|Plateau measurements at 700V, source in and source out overlaid. ]] || [[File:NaI_700V_Background_Subtracted_Plateau.png|300px|thumb|center|Plateau measurements at 700V, source in minus source out. ]] || [[File:NaI_700V_STN.png|300px|thumb|none|Signal to Noise ratio for 700V at different discriminator voltages ]] | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ='''Repeat of Initial Experimental Setup #1'''= | ||
+ | |||
+ | =='''Experimental Setup'''== | ||
+ | |||
+ | ==='''Polyethylene Structure'''=== | ||
+ | |||
+ | This section to include type of poly, location, source-detector distance, images, etc | ||
+ | |||
+ | ==='''Detector'''=== | ||
+ | |||
+ | Include images, model/serial number of detector, physical parameters, etc | ||
+ | |||
+ | =='''Electronics Chain'''== | ||
+ | |||
+ | Include schematic of electronics chain | ||
+ | |||
+ | ==='''Components'''=== | ||
+ | |||
+ | Each component of electronics chain with make/model, function, and brief description of why it's present | ||
+ | |||
+ | '''CAEN Discriminator Model N841 Tag #113''' | ||
+ | |||
+ | * 255mV threshold | ||
+ | |||
+ | * Pulse width as measured on scope: 43ns | ||
+ | |||
+ | '''Ortec Spec Amp Model 672''' | ||
+ | |||
+ | * 10x Course Gain | ||
+ | |||
+ | * 1x Fine Gain | ||
+ | |||
+ | * 2us Shaping Time | ||
+ | |||
+ | * Uni Shaping: Gaussian | ||
+ | |||
+ | * Input: Norm (-) | ||
+ | |||
+ | * Output: Unipolar | ||
+ | |||
+ | '''Dual Timer''' | ||
+ | |||
+ | * Discriminator output used to start timer | ||
+ | |||
+ | * Timer output used to trigger scalar | ||
+ | |||
+ | * Pulse width as measured on scope: 100ns | ||
+ | |||
+ | ==='''Scope Images'''=== | ||
+ | |||
+ | <gallery heights="300" widths="350" class="center"> | ||
+ | |<span style="color:#800080">'''Purple:'''</span> CAEN Dual Timer using Lecroy Disc as input. 100ns pulse width. <span style="color:#00ffff">'''Aqua:'''</span> Lecroy Disc Output. 20ns pulse width. | ||
+ | |||
+ | |<span style="color:#800080">'''Purple:'''</span> Input signal from spec amp. <span style="color:#ffff00">'''Yellow:'''</span> CAEN Dual Timer using Lecroy Disc as input. <span style="color:#00ffff">'''Aqua:'''</span> Lecroy Disc Output. <span style="color:#00ff00">'''Lime:'''</span>: CAEN Update Mode Disc Output. | ||
+ | |<span style="color:#800080">'''Purple:'''</span> Input signal from spec amp. <span style="color:#ffff00">'''Yellow:'''</span> CAEN Dual Timer using CAEN Disc as input. <span style="color:#00ffff">'''Aqua:'''</span> Lecroy Disc Output. <span style="color:#00ff00">'''Lime:'''</span>: CAEN Update Mode Disc Output. | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | </gallery> | ||
+ | |||
+ | =='''Background Measurements'''== | ||
+ | |||
+ | 2/24/22 ~7:30am | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V Background Measurements'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on poly at +1250V || 255 || No || 43 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 255 || No || 47 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 255 || No || 50 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 255 || No || 54 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 255 || No || 50 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Attenuation Measurements'''== | ||
+ | |||
+ | ==='''1" Green poly'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''2" Green poly (one brick) no thermalizer'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''3" Green poly (one brick & sheet)'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''4" Green poly (two bricks)'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''6" Green poly (three bricks)'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''8" Green poly (four bricks)'''=== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V source in'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || || 100 || || | ||
|- | |- | ||
|} | |} |
Revision as of 14:33, 24 February 2022
Experimental Setup
Polyethylene Structure
This section to include type of poly, location, source-detector distance, images, etc
Detector
Include images, model/serial number of detector, physical parameters, etc
He3 Tube Plateau
Measurements
1250V Source Out Data | ||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) |
1 | Detector on 3D printed stands at +1250V | 125 | No | 100 | ||
2 | Detector on 3D printed stands at +1250V | 145 | No | 100 | ||
3 | Detector on 3D printed stands at +1250V | 155 | No | 100 | ||
4 | Detector on 3D printed stands at +1250V | 160 | No | 100 | ||
5 | Detector on 3D printed stands at +1250V | 165 | No | 100 | ||
6 | Detector on 3D printed stands at +1250V | 170 | No | 100 | ||
7 | Detector on 3D printed stands at +1250V | 175 | No | 100 | ||
8 | Detector on 3D printed stands at +1250V | 185 | No | 100 | ||
9 | Detector on 3D printed stands at +1250V | 205 | No | 100 | ||
10 | Detector on 3D printed stands at +1250V | 225 | No | 100 | ||
11 | Detector on 3D printed stands at +1250V | 245 | No | 100 | ||
12 | Detector on 3D printed stands at +1250V | 255 | No | 100 |
1250V Source In Data | ||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) |
1 | Detector on 3D printed stands at +1250V | 125 | Yes | 100 | ||
2 | Detector on 3D printed stands at +1250V | 145 | Yes | 100 | ||
3 | Detector on 3D printed stands at +1250V | 155 | Yes | 100 | ||
4 | Detector on 3D printed stands at +1250V | 160 | Yes | 100 | ||
5 | Detector on 3D printed stands at +1250V | 165 | Yes | 100 | ||
6 | Detector on 3D printed stands at +1250V | 170 | Yes | 100 | ||
7 | Detector on 3D printed stands at +1250V | 175 | Yes | 100 | ||
8 | Detector on 3D printed stands at +1250V | 185 | Yes | 100 | ||
9 | Detector on 3D printed stands at +1250V | 205 | Yes | 100 | ||
10 | Detector on 3D printed stands at +1250V | 225 | Yes | 100 | ||
11 | Detector on 3D printed stands at +1250V | 245 | Yes | 100 | ||
12 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
Plateau Plots | ||
Repeat of Initial Experimental Setup #1
Experimental Setup
Polyethylene Structure
This section to include type of poly, location, source-detector distance, images, etc
Detector
Include images, model/serial number of detector, physical parameters, etc
Electronics Chain
Include schematic of electronics chain
Components
Each component of electronics chain with make/model, function, and brief description of why it's present
CAEN Discriminator Model N841 Tag #113
- 255mV threshold
- Pulse width as measured on scope: 43ns
Ortec Spec Amp Model 672
- 10x Course Gain
- 1x Fine Gain
- 2us Shaping Time
- Uni Shaping: Gaussian
- Input: Norm (-)
- Output: Unipolar
Dual Timer
- Discriminator output used to start timer
- Timer output used to trigger scalar
- Pulse width as measured on scope: 100ns
Scope Images
Background Measurements
2/24/22 ~7:30am
1250V Background Measurements | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 255 | No | 43 | 100 | ||
2 | Detector on poly at +1250V | 255 | No | 47 | 100 | ||
3 | Detector on poly at +1250V | 255 | No | 50 | 100 | ||
4 | Detector on poly at +1250V | 255 | No | 54 | 100 | ||
5 | Detector on poly at +1250V | 255 | No | 50 | 100 |
Attenuation Measurements
1" Green poly
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
2" Green poly (one brick) no thermalizer
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
3" Green poly (one brick & sheet)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
4" Green poly (two bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
6" Green poly (three bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
8" Green poly (four bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
Repeat of Initial Experimental Setup #1
Experimental Setup
Polyethylene Structure
This section to include type of poly, location, source-detector distance, images, etc
Detector
Include images, model/serial number of detector, physical parameters, etc
Electronics Chain
Include schematic of electronics chain
Components
Each component of electronics chain with make/model, function, and brief description of why it's present
CAEN Discriminator Model N841 Tag #113
- 255mV threshold
- Pulse width as measured on scope: 43ns
Ortec Spec Amp Model 672
- 10x Course Gain
- 1x Fine Gain
- 2us Shaping Time
- Uni Shaping: Gaussian
- Input: Norm (-)
- Output: Unipolar
Dual Timer
- Discriminator output used to start timer
- Timer output used to trigger scalar
- Pulse width as measured on scope: 100ns
Scope Images
Background Measurements
2/24/22 ~7:30am
1250V Background Measurements | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 255 | No | 43 | 100 | ||
2 | Detector on poly at +1250V | 255 | No | 47 | 100 | ||
3 | Detector on poly at +1250V | 255 | No | 50 | 100 | ||
4 | Detector on poly at +1250V | 255 | No | 54 | 100 | ||
5 | Detector on poly at +1250V | 255 | No | 50 | 100 |
Attenuation Measurements
1" Green poly
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
2" Green poly (one brick) no thermalizer
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
3" Green poly (one brick & sheet)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
4" Green poly (two bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
6" Green poly (three bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
8" Green poly (four bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
Attenuation Experiment using HPGe Lynx System as PSU/DAQ
Experimental Setup
Polyethylene Structure
This section to include type of poly, location, source-detector distance, images, etc
Detector
Include images, model/serial number of detector, physical parameters, etc
Electronics Chain
Include schematic of electronics chain
Components
Each component of electronics chain with make/model, function, and brief description of why it's present
Measurements
Attenuation Experiment using New Modules in Electronics Chain
Electronics Chain
Include schematic of electronics chain
Components
Each component of electronics chain with make/model, function, and brief description of why it's present
Lecroy Discriminator Model 821
- 255mV threshold
- Pulse width as measured on scope: 20ns
Ortec Spec Amp Model 672
- 10x Course Gain
- 1x Fine Gain
- 2us Shaping Time
- Uni Shaping: Gaussian
- Input: Norm (-)
- Output: Unipolar
Dual Timer
- Discriminator output used to start timer
- Timer output used to trigger scalar
- Pulse width as measured on scope: 100ns
Scope Images
Background Measurements
2/23/22 ~4pm
1250V Background Measurements | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 255 | No | 63 | 100 | ||
2 | Detector on poly at +1250V | 255 | No | 52 | 100 | ||
3 | Detector on poly at +1250V | 255 | No | 65 | 100 | ||
4 | Detector on poly at +1250V | 255 | No | 53 | 100 | ||
5 | Detector on poly at +1250V | 255 | No | 70 | 100 |
2/24/22 ~7:30am
1250V Background Measurements | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 255 | No | 59 | 100 | ||
2 | Detector on poly at +1250V | 255 | No | 41 | 100 | ||
3 | Detector on poly at +1250V | 255 | No | 100 | |||
4 | Detector on poly at +1250V | 255 | No | 100 | |||
5 | Detector on poly at +1250V | 255 | No | 100 |
Attenuation Measurements
Open Source
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 5835 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 5730 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 5801 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 5913 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 5837 | 100 |
2" Green poly (one brick)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 1160 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 1110 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 1087 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
3" Green poly (one brick & sheet)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
4" Green poly (two bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
6" Green poly (three bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |
8" Green poly (four bricks)
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 100 |