SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter

Y. Yehuda-Zada; D. Vartsky; G. Martínez-Lema; I. Mor; E. Cohen; A. Roy; A. Beck; L. Arazi

doi:https://doi.org/10.1016/j.nima.2024.169143

SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter

Y. Yehuda-Zada, D. Vartsky, G. Martínez-Lema, I. Mor, E. Cohen, A. Roy, A. Beck, L. Arazi

Ben-Gurion University of the Negev, Weizmann Institute of Science

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

Abstract

We present a new design of a fast-neutron camera based on SiPM array readout. This design has advantages over previous optical-readout designs, such as compactness and modularity. In this Part I contribution we evaluate by Geant4 Monte-Carlo simulations the hierarchy and neutron-energy-dependence of the contribution of various fast-neutron interactions and secondary processes to the creation of light and their influence on the intrinsic spatial resolution and radiographic contrast in a 200 × 200 × 50 mm³ organic scintillator screen. Specifically, the contribution of proton recoils, delta electrons, carbon recoils, high-energy electrons, positrons, alpha particles and Cherenkov radiation to the total light and their influence on the intrinsic spatial resolution was evaluated in the 2.5–14-MeV neutron energy range. In a 50-mm-thick scintillator camera the limiting intrinsic spatial resolution was about 450 μm for 14-MeV neutrons and appreciably better for lower neutron energies.

Original language	American English
Article number	169143
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1061
Early online date	1 Feb 2024
DOIs	https://doi.org/10.1016/j.nima.2024.169143
State	Published - 1 Apr 2024

Keywords

Fast neutron camera
Geant4 simulations
Neutron radiography position resolution
SiPM readout

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

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https://doi.org/10.1016/j.nima.2024.169143

Cite this

Yehuda-Zada, Y., Vartsky, D., Martínez-Lema, G., Mor, I., Cohen, E., Roy, A., Beck, A., & Arazi, L. (2024). SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1061, Article 169143. Advance online publication. https://doi.org/10.1016/j.nima.2024.169143

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title = "SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter",

abstract = "We present a new design of a fast-neutron camera based on SiPM array readout. This design has advantages over previous optical-readout designs, such as compactness and modularity. In this Part I contribution we evaluate by Geant4 Monte-Carlo simulations the hierarchy and neutron-energy-dependence of the contribution of various fast-neutron interactions and secondary processes to the creation of light and their influence on the intrinsic spatial resolution and radiographic contrast in a 200 × 200 × 50 mm3 organic scintillator screen. Specifically, the contribution of proton recoils, delta electrons, carbon recoils, high-energy electrons, positrons, alpha particles and Cherenkov radiation to the total light and their influence on the intrinsic spatial resolution was evaluated in the 2.5–14-MeV neutron energy range. In a 50-mm-thick scintillator camera the limiting intrinsic spatial resolution was about 450 μm for 14-MeV neutrons and appreciably better for lower neutron energies.",

keywords = "Fast neutron camera, Geant4 simulations, Neutron radiography position resolution, SiPM readout",

author = "Y. Yehuda-Zada and D. Vartsky and G. Mart{\'i}nez-Lema and I. Mor and E. Cohen and A. Roy and A. Beck and L. Arazi",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2024",

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Yehuda-Zada, Y, Vartsky, D, Martínez-Lema, G, Mor, I, Cohen, E, Roy, A, Beck, A & Arazi, L 2024, 'SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1061, 169143. https://doi.org/10.1016/j.nima.2024.169143

SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter. / Yehuda-Zada, Y.; Vartsky, D.; Martínez-Lema, G. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1061, 169143, 01.04.2024.

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

TY - JOUR

T1 - SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter

AU - Yehuda-Zada, Y.

AU - Vartsky, D.

AU - Martínez-Lema, G.

AU - Mor, I.

AU - Cohen, E.

AU - Roy, A.

AU - Beck, A.

AU - Arazi, L.

PY - 2024/4/1

Y1 - 2024/4/1

N2 - We present a new design of a fast-neutron camera based on SiPM array readout. This design has advantages over previous optical-readout designs, such as compactness and modularity. In this Part I contribution we evaluate by Geant4 Monte-Carlo simulations the hierarchy and neutron-energy-dependence of the contribution of various fast-neutron interactions and secondary processes to the creation of light and their influence on the intrinsic spatial resolution and radiographic contrast in a 200 × 200 × 50 mm3 organic scintillator screen. Specifically, the contribution of proton recoils, delta electrons, carbon recoils, high-energy electrons, positrons, alpha particles and Cherenkov radiation to the total light and their influence on the intrinsic spatial resolution was evaluated in the 2.5–14-MeV neutron energy range. In a 50-mm-thick scintillator camera the limiting intrinsic spatial resolution was about 450 μm for 14-MeV neutrons and appreciably better for lower neutron energies.

AB - We present a new design of a fast-neutron camera based on SiPM array readout. This design has advantages over previous optical-readout designs, such as compactness and modularity. In this Part I contribution we evaluate by Geant4 Monte-Carlo simulations the hierarchy and neutron-energy-dependence of the contribution of various fast-neutron interactions and secondary processes to the creation of light and their influence on the intrinsic spatial resolution and radiographic contrast in a 200 × 200 × 50 mm3 organic scintillator screen. Specifically, the contribution of proton recoils, delta electrons, carbon recoils, high-energy electrons, positrons, alpha particles and Cherenkov radiation to the total light and their influence on the intrinsic spatial resolution was evaluated in the 2.5–14-MeV neutron energy range. In a 50-mm-thick scintillator camera the limiting intrinsic spatial resolution was about 450 μm for 14-MeV neutrons and appreciably better for lower neutron energies.

KW - Fast neutron camera

KW - Geant4 simulations

KW - Neutron radiography position resolution

KW - SiPM readout

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SN - 0168-9002

VL - 1061

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 169143

ER -

Yehuda-Zada Y, Vartsky D, Martínez-Lema G, Mor I, Cohen E, Roy A et al. SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2024 Apr 1;1061:169143. Epub 2024 Feb 1. doi: https://doi.org/10.1016/j.nima.2024.169143

SiPM-based fast-neutron resonance radiography camera part I- evaluation of intrinsic factors influencing image quality in a thick neutron converter

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