Difference between revisions of "CH He3 Attenuation Measurements Revisited"
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Line 1: | Line 1: | ||
+ | ='''Initial Experiments'''= | ||
+ | |||
+ | [[CH PAS He3 Poly Boration Study]] | ||
+ | |||
+ | [[CH He3 Pre-amp Noise Investigation]] | ||
+ | |||
='''Experimental Setup'''= | ='''Experimental Setup'''= | ||
+ | |||
+ | Detector is mounted on 3D printed stands located at each end of the 20" He3 tube | ||
+ | |||
+ | The stands are ABS plastic | ||
+ | |||
+ | The entire setup is on top of BorAl plating placed on top of a plywood workbench | ||
+ | |||
+ | Front face of poly structure is 9.5" to closest part of detector tube | ||
=='''Polyethylene Structure'''== | =='''Polyethylene Structure'''== | ||
Line 8: | Line 22: | ||
Include images, model/serial number of detector, physical parameters, etc | Include images, model/serial number of detector, physical parameters, etc | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
='''He3 Tube Plateau'''= | ='''He3 Tube Plateau'''= | ||
Line 93: | Line 98: | ||
|} | |} | ||
+ | ='''Repeat of Initial Experimental Setup #1'''= | ||
+ | |||
+ | Performed on the morning 2/24/22 | ||
+ | |||
+ | =='''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 Quad Linear Fan In - Fan Out Model N25 Tag #15687''' | ||
+ | |||
+ | * The fan in/out is used to duplicate the pulse to run multiple discriminators & timers concurrently | ||
+ | |||
+ | '''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 | ||
+ | |||
+ | '''CAEN Dual Timer Model N93B Tag #1761''' | ||
+ | |||
+ | * 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'''== | ||
+ | |||
+ | {| 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 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Attenuation Measurements'''== | ||
+ | |||
+ | ==='''Open Source'''=== | ||
+ | |||
+ | {| 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 || 2621 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 2582 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 2497 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 2605 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 2522 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''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 || 368 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 410 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 406 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 412 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 412 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''2" Green poly (one brick)'''=== | ||
+ | |||
+ | {| 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 || 430 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 431 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 407 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 417 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 411 || 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 || 264 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 257 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 274 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 249 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 261 || 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 || 291 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 274 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 299 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 326 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 274 || 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 || 242 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 251 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 247 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 268 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 243 || 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 || 225 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 228 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 210 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 228 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 222 || 100 || || | ||
+ | |- | ||
+ | |} | ||
− | ='''Repeat of Initial Experimental Setup'''= | + | ='''Repeat of Initial Experimental Setup #2'''= |
=='''Experimental Setup'''== | =='''Experimental Setup'''== | ||
Line 115: | Line 347: | ||
Each component of electronics chain with make/model, function, and brief description of why it's present | Each component of electronics chain with make/model, function, and brief description of why it's present | ||
− | =='''Measurements'''== | + | '''CAEN Discriminator Model N841 Tag #115''' |
+ | |||
+ | * 255mV threshold | ||
+ | |||
+ | * Pulse width as measured on scope: | ||
+ | |||
+ | '''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 || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 255 || No || || 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'''=== |
{| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
Line 261: | Line 556: | ||
='''Attenuation Experiment using New Modules in Electronics Chain'''= | ='''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 | ||
+ | |||
+ | '''CAEN Quad Linear Fan In - Fan Out Model N25 Tag #15687''' | ||
+ | |||
+ | * The fan in/out is used to duplicate the pulse to run multiple discriminators & timers concurrently | ||
+ | |||
+ | '''Lecroy Discriminator Model 821 Serial #B16303''' | ||
+ | |||
+ | * 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 | ||
+ | |||
+ | '''CAEN Dual Timer Model N93B Tag #1572''' | ||
+ | |||
+ | * 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"> | ||
+ | CH_Neutron_Atten_Background_Lecroy_Timing_2-23-22.png|<span style="color:#ffff00">'''Yellow:'''</span> CAEN Dual Timer using Lecroy Disc as input. 100ns pulse width. <span style="color:#00ffff">'''Aqua:'''</span> Lecroy Disc Output. ~43ns pulse width. | ||
+ | |||
+ | CH Neutron Atten Background Lecroy Timing Spec-Amp 2-23-22.png|<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:#00ff00">'''Lime:'''</span>: Ortec Spec Amp 672 output. | ||
+ | |||
+ | |||
+ | |||
+ | Disc Dual Timer Timing and Widths 2-24-22.png| <span style="color:#00ffff">'''Aqua:'''</span> Lecroy Disc Output. ~43ns pulse width. <span style="color:#ffff00">'''Yellow:'''</span> CAEN Dual Timer using Lecroy Disc as input. 100ns pulse width. <span style="color:#800080">'''Purple:'''</span> CAEN Disc Output. ~43ns pulse width. <span style="color:#00ff00">'''Lime:'''</span>: CAEN Dual Timer using CAEN Disc as input. 100ns pulse width. | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | </gallery> | ||
+ | |||
+ | =='''Background Measurements'''== | ||
+ | |||
+ | 2/23/22 ~4pm | ||
+ | |||
+ | {| 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 3D printed stands at +1250V || 255 || No || 63 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || No || 52 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || No || 65 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || No || 53 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || No || 70 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | 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 3D printed stands at +1250V || 255 || No || 59 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || No || 41 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || No || 57 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || No || 56 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || No || 55 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Poly Attenuation Measurements'''== | ||
+ | |||
+ | ==='''Open Source'''=== | ||
+ | |||
+ | {| 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 || 2456 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 2399 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 2329 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 2459 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 2358 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''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 || 339 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 381 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 375 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 376 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 374 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''2" Green poly (one brick)'''=== | ||
+ | |||
+ | {| 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 || 388 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 403 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 382 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 387 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 391 || 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 || 243 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 239 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 251 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 230 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 236 || 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 || 271 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 255 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 281 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 299 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 266 || 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 || 223 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 231 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 227 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 245 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 229 || 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 || 209 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || Yes || 211 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || Yes || 200 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || Yes || 208 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || Yes || 211 || 100 || || | ||
+ | |- | ||
+ | |} | ||
− | + | ='''Attenuation Experiment using New Modules in Electronics Chain and Inside Borated Poly Box'''= | |
− | =='''Electronics Chain'''== | + | =='''Electronics Chain (Poly Box)'''== |
Include schematic of electronics chain | Include schematic of electronics chain | ||
Line 279: | Line 809: | ||
Each component of electronics chain with make/model, function, and brief description of why it's present | Each component of electronics chain with make/model, function, and brief description of why it's present | ||
− | =='''Measurements'''== | + | '''Ortec 142PC Pre-amp''' |
+ | |||
+ | Pre-amp for the He3 tube | ||
+ | |||
+ | '''CAEN Quad Linear Fan In - Fan Out Model N25 Tag #15687''' | ||
+ | |||
+ | * The fan in/out is used to duplicate the pulse to run the spec amp and watch the signal on the scope for any anomalies. | ||
+ | |||
+ | * The fan in/out is also used to invert the signal from the spec amp to send a negative pulse to the discriminator to trigger the scalar. | ||
+ | |||
+ | '''Ortec Spec Amp Model 672''' | ||
+ | |||
+ | * 10x Course Gain | ||
+ | |||
+ | * 1x Fine Gain | ||
+ | |||
+ | * 0.5us Shaping Time | ||
+ | |||
+ | * Uni Shaping: Gaussian | ||
+ | |||
+ | * Input: Norm (+) | ||
+ | |||
+ | * Output: Unipolar | ||
+ | |||
+ | * Manual Pole Zero adjustment | ||
+ | |||
+ | '''Lecroy Discriminator Model 821 Serial #B16303''' | ||
+ | |||
+ | * Variable threshold | ||
+ | |||
+ | * Pulse width as measured on scope: ~43ns | ||
+ | |||
+ | ==='''Scope Images'''=== | ||
+ | |||
+ | =='''Plateau Measurements'''== | ||
+ | |||
+ | {| class="wikitable mw-collapsible mw-collapsed" border="2" style="text-align:center;" |cellpadding="20" cellspacing="1 | ||
+ | |- | ||
+ | | '''1250V Plateau Measurements'''|| | ||
+ | |- | ||
+ | | Run Number || Configuration || Discriminator Threshold (mV) || Cf-252 Source || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
+ | |- | ||
+ | | 1 || Detector on poly blocks at +1250V || 30 || Yes || 36048 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly blocks at +1250V || 40 || Yes || 4614 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly blocks at +1250V || 50 || Yes || 4175 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly blocks at +1250V || 60 || Yes || 3989 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly blocks at +1250V || 70 || Yes || 3932 || 100 || || | ||
+ | |- | ||
+ | | 6 || Detector on poly blocks at +1250V || 80 || Yes || 3969 || 100 || || | ||
+ | |- | ||
+ | | 7 || Detector on poly blocks at +1250V || 90 || Yes || 3757 || 100 || || | ||
+ | |- | ||
+ | | 8 || Detector on poly blocks at +1250V || 100 || Yes || 3795 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Background Measurements'''== | ||
+ | |||
+ | {| 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 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on 3D printed stands at +1250V || 255 || No || || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Poly Box Attenuation Measurements'''== | ||
+ | |||
+ | ==='''Open Source'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 3873 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 3909 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 3859 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 3944 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 3812 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''2" Green poly (one brick) in Box'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 764 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 819 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 818 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 815 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 913 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''4" Green poly (two bricks) in Box'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 486 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 509 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 531 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 544 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 530 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''6" Green poly (three bricks) in Box'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 415 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 373 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 380 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 397 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 419 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''8" Green poly (four bricks) in Box'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 371 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 396 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 351 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 366 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 394 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | =='''Lead Attenuation Measurements'''== | ||
+ | |||
+ | 4/5/22 | ||
+ | |||
+ | ==='''Lead Open Source'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 3873 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 3909 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 3859 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 3944 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 3812 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''1" Lead'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 4152 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 3945 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 4141 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 3974 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 4154 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | ==='''2" Lead'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 3509 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 3472 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 3387 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 3488 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 3463 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | ==='''3" Lead'''=== | ||
+ | {| 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 poly at +1250V || 80 || Yes || 2995 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 2921 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 2956 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 2916 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 3015 || 100 || || | ||
+ | |- | ||
+ | |} | ||
+ | ==='''4" Lead'''=== | ||
+ | |||
+ | {| 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 poly at +1250V || 80 || Yes || 2630 || 100 || || | ||
+ | |- | ||
+ | | 2 || Detector on poly at +1250V || 80 || Yes || 2601 || 100 || || | ||
+ | |- | ||
+ | | 3 || Detector on poly at +1250V || 80 || Yes || 2558 || 100 || || | ||
+ | |- | ||
+ | | 4 || Detector on poly at +1250V || 80 || Yes || 2629 || 100 || || | ||
+ | |- | ||
+ | | 5 || Detector on poly at +1250V || 80 || Yes || 2650 || 100 || || | ||
+ | |- | ||
+ | |} | ||
---- | ---- |
Latest revision as of 16:34, 28 April 2022
Initial Experiments
CH PAS He3 Poly Boration Study
CH He3 Pre-amp Noise Investigation
Experimental Setup
Detector is mounted on 3D printed stands located at each end of the 20" He3 tube
The stands are ABS plastic
The entire setup is on top of BorAl plating placed on top of a plywood workbench
Front face of poly structure is 9.5" to closest part of detector tube
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
Performed on the morning 2/24/22
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 Quad Linear Fan In - Fan Out Model N25 Tag #15687
- The fan in/out is used to duplicate the pulse to run multiple discriminators & timers concurrently
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
CAEN Dual Timer Model N93B Tag #1761
- Discriminator output used to start timer
- Timer output used to trigger scalar
- Pulse width as measured on scope: 100ns
Scope Images
Background Measurements
1250V Background Measurements | |||||||
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 | No | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
5 | Detector on 3D printed stands 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 | 2621 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 2582 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 2497 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 2605 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 2522 | 100 |
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 | 368 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 410 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 406 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 412 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 412 | 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 | 430 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 431 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 407 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 417 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 411 | 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 | 264 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 257 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 274 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 249 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 261 | 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 | 291 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 274 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 299 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 326 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 274 | 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 | 242 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 251 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 247 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 268 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 243 | 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 | 225 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 228 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 210 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 228 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 222 | 100 |
Repeat of Initial Experimental Setup #2
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 #115
- 255mV threshold
- Pulse width as measured on scope:
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 | 100 | |||
2 | Detector on poly at +1250V | 255 | No | 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 | 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
CAEN Quad Linear Fan In - Fan Out Model N25 Tag #15687
- The fan in/out is used to duplicate the pulse to run multiple discriminators & timers concurrently
Lecroy Discriminator Model 821 Serial #B16303
- 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
CAEN Dual Timer Model N93B Tag #1572
- 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 3D printed stands at +1250V | 255 | No | 63 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | No | 52 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | No | 65 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | No | 53 | 100 | ||
5 | Detector on 3D printed stands 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 3D printed stands at +1250V | 255 | No | 59 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | No | 41 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | No | 57 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | No | 56 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | No | 55 | 100 |
Poly 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 | 2456 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 2399 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 2329 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 2459 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 2358 | 100 |
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 | 339 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 381 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 375 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 376 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 374 | 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 | 388 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 403 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 382 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 387 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 391 | 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 | 243 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 239 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 251 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 230 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 236 | 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 | 271 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 255 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 281 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 299 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 266 | 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 | 223 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 231 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 227 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 245 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 229 | 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 | 209 | 100 | ||
2 | Detector on 3D printed stands at +1250V | 255 | Yes | 211 | 100 | ||
3 | Detector on 3D printed stands at +1250V | 255 | Yes | 200 | 100 | ||
4 | Detector on 3D printed stands at +1250V | 255 | Yes | 208 | 100 | ||
5 | Detector on 3D printed stands at +1250V | 255 | Yes | 211 | 100 |
Attenuation Experiment using New Modules in Electronics Chain and Inside Borated Poly Box
Electronics Chain (Poly Box)
Include schematic of electronics chain
Components
Each component of electronics chain with make/model, function, and brief description of why it's present
Ortec 142PC Pre-amp
Pre-amp for the He3 tube
CAEN Quad Linear Fan In - Fan Out Model N25 Tag #15687
- The fan in/out is used to duplicate the pulse to run the spec amp and watch the signal on the scope for any anomalies.
- The fan in/out is also used to invert the signal from the spec amp to send a negative pulse to the discriminator to trigger the scalar.
Ortec Spec Amp Model 672
- 10x Course Gain
- 1x Fine Gain
- 0.5us Shaping Time
- Uni Shaping: Gaussian
- Input: Norm (+)
- Output: Unipolar
- Manual Pole Zero adjustment
Lecroy Discriminator Model 821 Serial #B16303
- Variable threshold
- Pulse width as measured on scope: ~43ns
Scope Images
Plateau Measurements
1250V Plateau Measurements | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly blocks at +1250V | 30 | Yes | 36048 | 100 | ||
2 | Detector on poly blocks at +1250V | 40 | Yes | 4614 | 100 | ||
3 | Detector on poly blocks at +1250V | 50 | Yes | 4175 | 100 | ||
4 | Detector on poly blocks at +1250V | 60 | Yes | 3989 | 100 | ||
5 | Detector on poly blocks at +1250V | 70 | Yes | 3932 | 100 | ||
6 | Detector on poly blocks at +1250V | 80 | Yes | 3969 | 100 | ||
7 | Detector on poly blocks at +1250V | 90 | Yes | 3757 | 100 | ||
8 | Detector on poly blocks at +1250V | 100 | Yes | 3795 | 100 |
Background Measurements
1250V Background Measurements | |||||||
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 | No | 100 | |||
2 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
3 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
4 | Detector on 3D printed stands at +1250V | 255 | No | 100 | |||
5 | Detector on 3D printed stands at +1250V | 255 | No | 100 |
Poly Box 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 poly at +1250V | 80 | Yes | 3873 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 3909 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 3859 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 3944 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 3812 | 100 |
2" Green poly (one brick) in Box
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 764 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 819 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 818 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 815 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 913 | 100 |
4" Green poly (two bricks) in Box
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 486 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 509 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 531 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 544 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 530 | 100 |
6" Green poly (three bricks) in Box
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 415 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 373 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 380 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 397 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 419 | 100 |
8" Green poly (four bricks) in Box
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 371 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 396 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 351 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 366 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 394 | 100 |
Lead Attenuation Measurements
4/5/22
Lead 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 poly at +1250V | 80 | Yes | 3873 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 3909 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 3859 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 3944 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 3812 | 100 |
1" Lead
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 4152 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 3945 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 4141 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 3974 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 4154 | 100 |
2" Lead
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 3509 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 3472 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 3387 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 3488 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 3463 | 100 |
3" Lead
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 2995 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 2921 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 2956 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 2916 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 3015 | 100 |
4" Lead
1250V source in | |||||||
Run Number | Configuration | Discriminator Threshold (mV) | Cf-252 Source | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
1 | Detector on poly at +1250V | 80 | Yes | 2630 | 100 | ||
2 | Detector on poly at +1250V | 80 | Yes | 2601 | 100 | ||
3 | Detector on poly at +1250V | 80 | Yes | 2558 | 100 | ||
4 | Detector on poly at +1250V | 80 | Yes | 2629 | 100 | ||
5 | Detector on poly at +1250V | 80 | Yes | 2650 | 100 |