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Hexagonal uniformly redundant arrays (HURAs) for scintillator based coded aperture neutron imaging

Research output: Contribution to conference - Without ISBN/ISSN Conference paper

Published
  • Kelum Gamage
  • Qi Zhou
  • Sean Hayes
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Publication date04/2015
Number of pages4
Pages1-4
Original languageEnglish
EventIEEE Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA-2015) - Lisbon, Portugal
Duration: 20/04/201524/04/2015

Conference

ConferenceIEEE Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA-2015)
CountryPortugal
CityLisbon
Period20/04/1524/04/15

Abstract

A series of Monte Carlo simulations have been conducted, making use of the EJ-426 neutron scintillator detector, to investigate the potential of using hexagonal uniformly redundant arrays (HURAs) for scintillator based coded aperture neutron imaging. This type of scintillator material has a low sensitivity to gamma rays, therefore, is of particular use in a system with a source that emits both neutrons and gamma rays. The simulations used an AmBe source, neutron images have been produced using different coded-aperture materials (boron-10, cadmium-113 and gadolinium-157) and location error has also been estimated. In each case the neutron image clearly shows the location of the source with a relatively small location error. Neutron images with high resolution can be easily used to identify and locate nuclear materials precisely in nuclear security and nuclear decommissioning applications.