Optimum angle-cut of collimator for dense objects in high-energy proton radiography

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Hai-Bo Xu and Na Zheng. Optimum angle-cut of collimator for dense objects in high-energy proton radiography[J]. Chinese Physics C, 2016, 40(2): 028201. doi: 10.1088/1674-1137/40/2/028201
Hai-Bo Xu and Na Zheng. Optimum angle-cut of collimator for dense objects in high-energy proton radiography[J]. Chinese Physics C, 2016, 40(2): 028201.  doi: 10.1088/1674-1137/40/2/028201 shu
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Received: 2015-04-08
Revised: 2015-09-18
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    Supported by NSAF (11176001) and Science and Technology Developing Foundation of China Academy of Engineering Physics (2012A0202006)

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Optimum angle-cut of collimator for dense objects in high-energy proton radiography

    Corresponding author: Na Zheng,
  • 1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
Fund Project:  Supported by NSAF (11176001) and Science and Technology Developing Foundation of China Academy of Engineering Physics (2012A0202006)

Abstract: The use of minus identity lenses with an angle-cut collimator can achieve high contrast images in high-energy proton radiography. This article presents the principles of choosing the angle-cut aperture of the collimator for different energies and objects. Numerical simulation using the Monte Carlo code Geant4 has been implemented to investigate the entire radiography for the French test object. The optimum angle-cut apertures of the collimators are also obtained for different energies.

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