A Monte Carlo study of the effect of coded-aperture material and thickness on neutron imaging

Hayes, Sean and Gamage, Kelum (2014) A Monte Carlo study of the effect of coded-aperture material and thickness on neutron imaging. Radiation Protection Dosimetry, 161 (1-4). pp. 265-268. ISSN 1742-3406

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Abstract

In this paper, a coded-aperture design for a scintillator-based neutron imaging system has been simulated using a series of Monte Carlo simulations. Using Monte Carlo simulations, work to optimise a system making use of the EJ-426 neutron scintillator detector has been conducted. This type of scintillator has a low sensitivity to gamma rays and is therefore particularly useful for neutron detection in a mixed radiation environment. Simulations have been conducted using varying coded-aperture materials and different coded-aperture thicknesses. From this, neutron images have been produced, compared qualitatively and quantitatively for each case to find the best material for the MURA (modified uniformly redundant array) pattern. The neutron images generated also allow observations on how differing thicknesses of coded-aperture impact the system.

Item Type: Journal Article
Journal or Publication Title: Radiation Protection Dosimetry
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3108
Subjects:
Departments: Faculty of Science and Technology > Engineering
ID Code: 67685
Deposited By: ep_importer_pure
Deposited On: 25 Nov 2013 11:04
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:43
URI: https://eprints.lancs.ac.uk/id/eprint/67685

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