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

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
Plateau measurements at 700V, source in and source out overlaid.	Plateau measurements at 700V, source in minus source out.	Signal to Noise ratio for 700V at different discriminator voltages

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 Quad Linear Fan In - Fan Out Model N25

This is present to duplicate the

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 #1572

Discriminator output used to start timer

Timer output used to trigger scalar

Pulse width as measured on scope: 100ns

Scope Images

Background Measurements

2/24/22 ~8:45am

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	32	100
2	Detector on 3D printed stands at +1250V	255	No	33	100
3	Detector on 3D printed stands at +1250V	255	No	25	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	2809	100
2	Detector on 3D printed stands at +1250V	255	Yes	2782	100
3	Detector on 3D printed stands at +1250V	255	Yes	2788	100
4	Detector on 3D printed stands at +1250V	255	Yes	2916	100
5	Detector on 3D printed stands at +1250V	255	Yes	2782	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 #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

Lecroy Discriminator Model 821

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

Purple: CAEN Dual Timer using Lecroy Disc as input. 100ns pulse width. Aqua: Lecroy Disc Output. 20ns pulse width.
Purple: CAEN Dual Timer using Lecroy Disc as input. 100ns pulse width. Aqua: Lecroy Disc Output. 20ns pulse width. Lime:: Ortec Spec Amp 672 output.

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

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	2636	100
2	Detector on 3D printed stands at +1250V	255	Yes	2610	100
3	Detector on 3D printed stands at +1250V	255	Yes	2591	100
4	Detector on 3D printed stands at +1250V	255	Yes	2717	100
5	Detector on 3D printed stands at +1250V	255	Yes	2589	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

CH He3 Attenuation Measurements Revisited

Experimental Setup

Polyethylene Structure

Detector

He3 Tube Plateau

Measurements

Repeat of Initial Experimental Setup #1

Experimental Setup

Polyethylene Structure

Detector

Electronics Chain

Components

Scope Images

Background Measurements

Attenuation Measurements

Open Source

2" Green poly (one brick) no thermalizer

3" Green poly (one brick & sheet)

4" Green poly (two bricks)

6" Green poly (three bricks)

8" Green poly (four bricks)

Repeat of Initial Experimental Setup #2

Experimental Setup

Polyethylene Structure

Detector

Electronics Chain

Components

Scope Images

Background Measurements

Attenuation Measurements

Open Source

2" Green poly (one brick) no thermalizer

3" Green poly (one brick & sheet)

4" Green poly (two bricks)

6" Green poly (three bricks)

8" Green poly (four bricks)

Attenuation Experiment using HPGe Lynx System as PSU/DAQ

Experimental Setup

Polyethylene Structure

Detector

Electronics Chain

Components

Measurements

Attenuation Experiment using New Modules in Electronics Chain

Electronics Chain

Components

Scope Images

Background Measurements

Attenuation Measurements

Open Source

2" Green poly (one brick)

3" Green poly (one brick & sheet)

4" Green poly (two bricks)

6" Green poly (three bricks)

8" Green poly (four bricks)

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