Coated Micro-Particle Simulations with 6LiF/ZnS(Ag) and 10B/ZnS(Ag) for Improved Neutron Detection Efficiency

Faruk Logoglu, Douglas Wolfe, Marek Flaska

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Coated micro-particle scintillation detectors are a promising technology to improve the neutron detection by enhancing both the charged particle energy deposition in the scintillator and the optical photon propagation inside the active detection medium. The incentive is to maximize the energy deposition in the scintillator by coating the neutron converter (such as6LiF or 10B) and to maximize the light transport efficiency by making the relatively opaque scintillator (ZnS(Ag)) as thin as possible. In this work, coated micro-particles were modeled as concentric spheres. Single-particle simulations were performed to find the optimal radius of the neutron converters and optimal thickness of the scintillator. Multi-particle simulations were also performed to determine the optimal pitch (particle-to-particle distance) and the optimal detector thickness (the number of particle layers). 6LiF/ZnS(Ag) detectors are shown to perform better than 10B/ZnS(Ag) detectors in terms of neutron detection by allowing more mass of neutron converters in the active volume. However, it is also shown in the results that the 10B-based coated micro-particle detectors would be more efficient per unit mass of the neutron converter. The results obtained in this work are being used in the manufacturing processes aimed at producing initial samples of coated micro-particle detectors.

Original languageEnglish (US)
Title of host publication2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728141640
DOIs
StatePublished - Oct 2019
Event2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019 - Manchester, United Kingdom
Duration: Oct 26 2019Nov 2 2019

Publication series

Name2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019

Conference

Conference2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2019
CountryUnited Kingdom
CityManchester
Period10/26/1911/2/19

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics

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