A 4-channel multiplex analyzer for real-time, parallel processing of fast scintillators

Joyce, Malcolm J.; Gamage, Kelum A. A.; Aspinall, Michael; Cave, Frank; Lavietes, Anthony D.

doi:10.1109/nssmic.2012.6551077

Cited by 9 publications

(8 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using a curve fitting tool a power trend was realized (4). = 1121.58 • −1.003 (4) Rearranged to make W the subject produces the model used to determine the bin width, W, required to scale the mode pulse height of the real data to the specified pulse height, M (5). Fig.…”

Section: Epj Web Of Conferences 170 07001 (2018)mentioning

confidence: 99%

See 1 more Smart Citation

Modeling Photo-multiplier Gain and Regenerating Pulse Height Data for Application Development

Aspinall¹,

Jones²

2018

EPJ Web Conf.

View full text Add to dashboard Cite

Abstract-Systems that adopt organic scintillation detector arrays often require a calibration process prior to the intended measurement campaign to correct for significant performance variances between detectors within the array. These differences exist because of low tolerances associated with photo-multiplier tube technology and environmental influences. Differences in detector response can be corrected for by adjusting the supplied photo-multiplier tube voltage to control its gain and the effect that this has on the pulse height spectra from a gamma-only calibration source with a defined photo-peak. Automated methods that analyze these spectra and adjust the photomultiplier tube bias accordingly are emerging for hardware that integrate acquisition electronics and high voltage control. However, development of such algorithms require access to the hardware, multiple detectors and calibration source for prolonged periods, all with associated constraints and risks. In this work, we report on a software function and related models developed to rescale and regenerate pulse height data acquired from a single scintillation detector. Such a function could be used to generate significant and varied pulse height data that can be used to integration-test algorithms that are capable of automatically response matching multiple detectors using pulse height spectra analysis. Furthermore, a function of this sort removes the dependence on multiple detectors, digital analyzers and calibration source. Results show a good match between the real and regenerated pulse height data. The function has also been used successfully to develop auto-calibration algorithms.

show abstract

Section: Epj Web Of Conferences 170 07001 (2018)mentioning

confidence: 99%

“…ANY application systems adopt multiple organic scintillation detectors for fast neutron assay [1][2][3][4][5][6][7][8][9][10][11]. Detector arrays of this sort can consist of tens of detectors that rely on photo-multiplier tube (PMT) technology for scintillation light capture, voltage conversion and signal amplification.…”

Section: Introductionmentioning

confidence: 99%

Modeling Photo-multiplier Gain and Regenerating Pulse Height Data for Application Development

Aspinall¹,

Jones²

2018

EPJ Web Conf.

View full text Add to dashboard Cite

show abstract

“…The maturity of these two technologies, their ability to detect fast neutrons directly, perform neutron/gamma discrimination reliably and low deadtime have made them a popular choice for helium-3 alternatives [1], enhanced nuclear safeguards and security monitoring [2][3][4][5][6][7][8][9] and fast neutron imaging appli-20 cations [10,11]. Besides the choice of detector and DAQ, all these measurements analyse data from multiple detectors.…”

mentioning

confidence: 99%

“…1 functions and sensitivities [7]. In the past, this has been achieved by monitoring the detector count rates, visually inspecting the PSD scatter plots and neutron/gamma ratios derived from measurements with a Cf-252 source [4,13] (NB. PHS analysis was unavailable in this instance).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Automated response matching for organic scintillation detector arrays

Aspinall

Joyce

Cave

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

This paper identifies a digitizer technology with unique features that facilitates feedback control for the realization of a software-based technique for automatically calibrating detector responses. Three such auto-calibration techniques have been developed and are described along with an explanation of the main configuration settings and potential pitfalls. Automating this process increases repeatability, simplifies user operation, enables remote and periodic system calibration where consistency across detectors' responses are critical.

show abstract

Sector-shaped fast organic liquid scintillation detectors based neutron coincidence counter

Gamage

Joyce

Cave

2014

Applied Radiation and Isotopes

View full text Add to dashboard Cite

A 4-channel multiplex analyzer for real-time, parallel processing of fast scintillators

Cited by 9 publications

References 5 publications

Modeling Photo-multiplier Gain and Regenerating Pulse Height Data for Application Development

Modeling Photo-multiplier Gain and Regenerating Pulse Height Data for Application Development

Automated response matching for organic scintillation detector arrays

Sector-shaped fast organic liquid scintillation detectors based neutron coincidence counter

Contact Info

Product

Resources

About