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A portable fast neutron radiography system for non-destructive analysis of composite materials

Authors
  • Kam, Erol
  • Reyhancan, Iskender A.
  • Biyik, Recep
Type
Published Article
Journal
Nukleonika
Publisher
De Gruyter Open Sp. z o.o.
Publication Date
Jul 18, 2019
Volume
64
Issue
3
Pages
97–101
Identifiers
DOI: 10.2478/nuka-2019-0012
Source
De Gruyter
Keywords
License
Green

Abstract

Depending on the neutron energy used, neutron radiography can be generally categorized as fast and thermal neutron radiography. Fast neutron radiography (FNR) with neutron energy more than 1 MeV opens up a new range of possibilities for a non-destructive examination when the inspected object is thick or dense. Other traditional techniques, such as X-ray, gamma ray and thermal neutron radiography, do not meet penetration capabilities of FNR in this area. Because of these distinctive features, this technique is used in different industrial applications such as security (cargo investigation for contraband such as narcotics, explosives and illicit drugs), gas/liquid flow and mixing and radiography and tomography of encapsulated heavy shielded low Z compound materials. The FNR images are produced directly during exposure as neutrons create recoil protons, which activate a scintillator screen, allowing images to be collected with a computer-controlled charge-coupled device camera. Finally, the picture can be saved on a computer for image processing. The aim of this research was to set up a portable FN R system and to test it for use in non-destructive testing of different composite materials. Experiments were carried out by using a fast portative neutron generator Thermo Scientific MP 320.

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