Value-Assigned Pulse Shape Discrimination for Neutron Detectors

F. C.E. Teh; J. W. Lee; K. Zhu; K. W. Brown; Z. Chajecki; W. G. Lynch; M. B. Tsang; A. Anthony; J. Barney; D. Dell'aquila; J. Estee; B. Hong; G. Jhang; O. B. Khanal; Y. J. Kim; H. S. Lee; J. W. Lee; J. Manfredi; S. H. Nam; C. Y. Niu; J. H. Park; S. Sweany; C. Y. Tsang; R. Wang; H. Wu

doi:10.1109/TNS.2021.3091126

Value-Assigned Pulse Shape Discrimination for Neutron Detectors

F. C.E. Teh, J. W. Lee, K. Zhu, K. W. Brown, Z. Chajecki, W. G. Lynch, M. B. Tsang, A. Anthony, J. Barney, D. Dell'aquila, J. Estee, B. Hong, G. Jhang, O. B. Khanal, Y. J. Kim, H. S. Lee, J. W. Lee, J. Manfredi, S. H. Nam, C. Y. NiuJ. H. Park, S. Sweany, C. Y. Tsang, R. Wang, H. Wu

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Using the waveforms from a digital electronic system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve the neutron-gamma separation in a bar-shaped NE-213 scintillator that couples to a photomultiplier tube (PMT) at each end. The new improved method, called the 'valued-assigned PSD' (VPSD), assigns a normalized fitting residual to every waveform as the PSD value. This procedure then facilitates the incorporation of longitudinal position dependence of the scintillator, which further enhances the PSD capability of the detector system. In this article, we use radiation emitted from an AmBe neutron source to demonstrate that the resulting neutron-gamma identification has been much improved when compared to the traditional technique that uses the geometric mean (GM) of light outputs from both PMTs. The new method has also been modified and applied to a recent experiment at the National Superconducting Cyclotron Laboratory (NSCL) that uses an analog electronic system.

Original language	English
Article number	9461745
Pages (from-to)	2294-2300
Number of pages	7
Journal	IEEE Transactions on Nuclear Science
Volume	68
Issue number	8
DOIs	https://doi.org/10.1109/TNS.2021.3091126
Publication status	Published - 2021 Aug
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 1963-2012 IEEE.

Keywords

NE-213
neutron detection
neutron-gamma discrimination
pulse shape discrimination (PSD)

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

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10.1109/TNS.2021.3091126

Cite this

Teh, F. C. E., Lee, J. W., Zhu, K., Brown, K. W., Chajecki, Z., Lynch, W. G., Tsang, M. B., Anthony, A., Barney, J., Dell'aquila, D., Estee, J., Hong, B., Jhang, G., Khanal, O. B., Kim, Y. J., Lee, H. S., Lee, J. W., Manfredi, J., Nam, S. H., ... Wu, H. (2021). Value-Assigned Pulse Shape Discrimination for Neutron Detectors. IEEE Transactions on Nuclear Science, 68(8), 2294-2300. Article 9461745. https://doi.org/10.1109/TNS.2021.3091126

Teh, FCE, Lee, JW, Zhu, K, Brown, KW, Chajecki, Z, Lynch, WG, Tsang, MB, Anthony, A, Barney, J, Dell'aquila, D, Estee, J, Hong, B, Jhang, G, Khanal, OB, Kim, YJ, Lee, HS, Lee, JW, Manfredi, J, Nam, SH, Niu, CY, Park, JH, Sweany, S, Tsang, CY, Wang, R & Wu, H 2021, 'Value-Assigned Pulse Shape Discrimination for Neutron Detectors', IEEE Transactions on Nuclear Science, vol. 68, no. 8, 9461745, pp. 2294-2300. https://doi.org/10.1109/TNS.2021.3091126

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abstract = "Using the waveforms from a digital electronic system, an offline analysis technique on pulse shape discrimination (PSD) has been developed to improve the neutron-gamma separation in a bar-shaped NE-213 scintillator that couples to a photomultiplier tube (PMT) at each end. The new improved method, called the 'valued-assigned PSD' (VPSD), assigns a normalized fitting residual to every waveform as the PSD value. This procedure then facilitates the incorporation of longitudinal position dependence of the scintillator, which further enhances the PSD capability of the detector system. In this article, we use radiation emitted from an AmBe neutron source to demonstrate that the resulting neutron-gamma identification has been much improved when compared to the traditional technique that uses the geometric mean (GM) of light outputs from both PMTs. The new method has also been modified and applied to a recent experiment at the National Superconducting Cyclotron Laboratory (NSCL) that uses an analog electronic system.",

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AU - Lee, J. W.

AU - Manfredi, J.

AU - Nam, S. H.

AU - Niu, C. Y.

AU - Park, J. H.

AU - Sweany, S.

AU - Tsang, C. Y.

AU - Wang, R.

AU - Wu, H.

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Value-Assigned Pulse Shape Discrimination for Neutron Detectors

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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