Difference between revisions of "CH Discriminator Dual Pulsing"
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| Run Number || Configuration || Generator Rate || Generator Pulse Amplitude (Set) || Generator Pulse Height (Measured) || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | | Run Number || Configuration || Generator Rate || Generator Pulse Amplitude (Set) || Generator Pulse Height (Measured) || Counts || Run Time (Sec) || Count Rate (Hz) || Uncertainty | ||
|- | |- | ||
| − | | 1 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || | + | | 1 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || || |
|- | |- | ||
| − | | 2 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || | + | | 2 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || || |
|- | |- | ||
| − | | 3 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || | + | | 3 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || || |
|- | |- | ||
| − | | 4 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || | + | | 4 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || || |
|- | |- | ||
| − | | 5 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || | + | | 5 || Function Gen, Lecroy Disc, Scalar || 1.00 KHz || 1.00V || ~1V || || 100 || || |
|- | |- | ||
|} | |} | ||
Revision as of 19:47, 3 March 2022
Discriminators
All needed specifications can be found within the appropriate manual
CAEN N841 Leading Edge Discriminator
Modes: Update and Non-Update
- For use with He3 tube, Update vs Non-update mode did not seem to make a difference in discriminator output.
- See pages 10 & 12 in user manual
Lecroy 821 Quad Discriminator
File:LRS 821 Specifications.pdf
Tektronix DPO 4104 Digital Phosphor Oscilloscope
For reference: Input to discriminators is spec amp output with the following settings
Course gain: 10
Fine gain: 1
Shaping type: Gaussian
Shaping time: 2us
Purple: Input signal from spec amp. Yellow: CAEN Dual Timer using Lecroy Disc as input. Aqua: Lecroy Disc Output. Lime:: CAEN Update Mode Disc Output.
Purple: Input signal from spec amp. Yellow: CAEN Dual Timer using Lecroy Disc as input. Aqua: Lecroy Disc Output. Lime:: CAEN Update Mode Disc Output.
Purple: Input signal from spec amp. Yellow: CAEN Dual Timer using CAEN Disc as input. Aqua: Lecroy Disc Output. Lime:: CAEN Update Mode Disc Output.
Continued Investigations
03/01/2022
- Sourced a function generator
Function generator: Protek 93120 Digital Synthesis Arbitrary Function Generator/Counter
Measurements
I used a DC offset to create a purely negative pulse using a square wave signal ranging from 0 to -1V
| Run Number | Configuration | Generator Rate | Generator Pulse Amplitude (Set) | Generator Pulse Height (Measured) | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
| 1 | Function Gen feeding Scalar | 1.00 KHz | 1.00V | ~1V | 100000 | 100 | 1.000KHz | |
| 2 | Function Gen feeding Scalar | 1.00 KHz | 1.00V | ~1V | 100000 | 100 | 1.000KHz | |
| 3 | Function Gen feeding Scalar | 1.00 KHz | 1.00V | ~1V | 100000 | 100 | 1.000KHz | |
| 4 | Function Gen feeding Scalar | 1.00 KHz | 1.00V | ~1V | 100000 | 100 | 1.000KHz | |
| 5 | Function Gen feeding Scalar | 1.00 KHz | 1.00V | ~1V | 100000 | 100 | 1.000KHz |
I used a DC offset to create a purely negative pulse using a sine wave signal ranging from 0 to -1V that is discriminated by the Lecroy disc.
| Run Number | Configuration | Generator Rate | Generator Pulse Amplitude (Set) | Generator Pulse Height (Measured) | Counts | Run Time (Sec) | Count Rate (Hz) | Uncertainty |
| 1 | Function Gen, Lecroy Disc, Scalar | 1.00 KHz | 1.00V | ~1V | 100 | |||
| 2 | Function Gen, Lecroy Disc, Scalar | 1.00 KHz | 1.00V | ~1V | 100 | |||
| 3 | Function Gen, Lecroy Disc, Scalar | 1.00 KHz | 1.00V | ~1V | 100 | |||
| 4 | Function Gen, Lecroy Disc, Scalar | 1.00 KHz | 1.00V | ~1V | 100 | |||
| 5 | Function Gen, Lecroy Disc, Scalar | 1.00 KHz | 1.00V | ~1V | 100 |