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Simulation analysis and experimental verification of fast neutron radiography

Lu Chang-Bing Xu Peng Bao Jie Wang Zhao-Hui Zhang Kai Ren Jie Liu Yan-Feng

Simulation analysis and experimental verification of fast neutron radiography

Lu Chang-Bing, Xu Peng, Bao Jie, Wang Zhao-Hui, Zhang Kai, Ren Jie, Liu Yan-Feng
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  • Received Date:  30 May 2015
  • Accepted Date:  31 August 2015
  • Published Online:  05 October 2015

Simulation analysis and experimental verification of fast neutron radiography

    Corresponding author: Xu Peng, xupeng76345@163.com.
  • 1. Xi'an Institute of High Technology, Xi'an 710025, China;
  • 2. China Institute of Atomic Energy, Beijing 102413, China;
  • 3. Dongguan Campus, Institute of High Energy Physics, Chinese Academy of Sciences, Dongguan 523803, China
Fund Project:  Project supported by the Prompt Gamma Ray Method Research on Neutron Inelastic Cross Section (Grant No. 11375275).

Abstract: Expression for the formation of the pixel value of fast neutron radiography has been derived. The contrast inequality for the photograph has been established using the derived expression; then the relationships of the image contrast with the source intensity, the exposure time, and the scattering have therefore been obtained through the acquired inequality. A simulation on the process of fast neutron radiography is carried out based on the pixel value analysis, and the spatial resolution and image contrast have also been considered. Simulation results show that the spatial resolution is better than that from experiments and the effect of image contrast is equivalent to that of the experiments. Finally, various samples, such as Pb samples, with slits, Fe samples with square holes and multiple materials-combined samples, are used to test the performance of the simulation. Results demonstrate that the simulations are in agreement with the experiments, thus providing a reference to the future experimental design and engineering application.

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