Pulse shape discrimination performance of a pixelated plastic scintillator (EJ-299-34) for a coded-aperture based dual particle imaging system

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Scintillators, Gamma detectors, Neutron detectors, Particle identification

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Pulse shape discrimination performance of a pixelated plastic scintillator (EJ-299-34) for a coded-aperture based dual particle imaging system. / Cieslak, Michal; Akurugoda Gamage, Kelum; Glover, Robert et al.
In: Journal of Instrumentation, Vol. 14, P07017, 31.07.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{a0a3e82855474b6fbda52b1907591c7e,

title = "Pulse shape discrimination performance of a pixelated plastic scintillator (EJ-299-34) for a coded-aperture based dual particle imaging system",

abstract = "The pulse shape discrimination performance of a pixelated organic plastic scintillator has been investigated. The scintillator has been built using 169 plastic scintillator blocks (arranged into a 13 x 13 square array) of 2.8 x 2.8 x 15 mm each. The scintillator was coupled with a single-channel photomultiplier tube. The scintillator was exposed to a mixed-field environment provided by 252Cf and its pulse shape discrimination capabilities are presented in this paper. Initial results revealed that a 150 MS/s digitising system was insufficient to separate neutrons from gamma-ray photons. Therefore, the experiment was repeated with a 500 MS/s system, which provided improved pulse shape discrimination performance. In order to validate the performance of the pixelated plastic scintillator, it was compared to that of a cylindrical plastic sample. Tests were also carried out in moderated neutron and gamma-ray fields of 252Cf. The results indicate that acceptable levels of pulse shape discrimination are obtained for the case of a pixelated scintillator, when the higher sampling rate digitiser was used.",

keywords = "Scintillators, Gamma detectors, Neutron detectors, Particle identification",

author = "Michal Cieslak and {Akurugoda Gamage}, Kelum and Robert Glover and Taylor, {C. James}",

year = "2019",

month = jul,

day = "31",

doi = "10.1088/1748-0221/14/07/P07017",

language = "English",

volume = "14",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "Institute of Physics Publishing",

}

RIS

TY - JOUR

T1 - Pulse shape discrimination performance of a pixelated plastic scintillator (EJ-299-34) for a coded-aperture based dual particle imaging system

AU - Cieslak, Michal

AU - Akurugoda Gamage, Kelum

AU - Glover, Robert

AU - Taylor, C. James

PY - 2019/7/31

Y1 - 2019/7/31

N2 - The pulse shape discrimination performance of a pixelated organic plastic scintillator has been investigated. The scintillator has been built using 169 plastic scintillator blocks (arranged into a 13 x 13 square array) of 2.8 x 2.8 x 15 mm each. The scintillator was coupled with a single-channel photomultiplier tube. The scintillator was exposed to a mixed-field environment provided by 252Cf and its pulse shape discrimination capabilities are presented in this paper. Initial results revealed that a 150 MS/s digitising system was insufficient to separate neutrons from gamma-ray photons. Therefore, the experiment was repeated with a 500 MS/s system, which provided improved pulse shape discrimination performance. In order to validate the performance of the pixelated plastic scintillator, it was compared to that of a cylindrical plastic sample. Tests were also carried out in moderated neutron and gamma-ray fields of 252Cf. The results indicate that acceptable levels of pulse shape discrimination are obtained for the case of a pixelated scintillator, when the higher sampling rate digitiser was used.

AB - The pulse shape discrimination performance of a pixelated organic plastic scintillator has been investigated. The scintillator has been built using 169 plastic scintillator blocks (arranged into a 13 x 13 square array) of 2.8 x 2.8 x 15 mm each. The scintillator was coupled with a single-channel photomultiplier tube. The scintillator was exposed to a mixed-field environment provided by 252Cf and its pulse shape discrimination capabilities are presented in this paper. Initial results revealed that a 150 MS/s digitising system was insufficient to separate neutrons from gamma-ray photons. Therefore, the experiment was repeated with a 500 MS/s system, which provided improved pulse shape discrimination performance. In order to validate the performance of the pixelated plastic scintillator, it was compared to that of a cylindrical plastic sample. Tests were also carried out in moderated neutron and gamma-ray fields of 252Cf. The results indicate that acceptable levels of pulse shape discrimination are obtained for the case of a pixelated scintillator, when the higher sampling rate digitiser was used.

KW - Scintillators

KW - Gamma detectors

KW - Neutron detectors

KW - Particle identification

U2 - 10.1088/1748-0221/14/07/P07017

DO - 10.1088/1748-0221/14/07/P07017

M3 - Journal article

VL - 14

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

M1 - P07017

ER -

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