Optimum angle-cut of collimator for dense objects in high-energy proton radiography |
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Authors: | Hai-Bo Xu Na Zheng |
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Institution: | 1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China |
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Abstract: | The use of minus identity lenses with an angle-cut collimator can achieve high contrast images in highenergy 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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Keywords: | proton radiography multiple Coulomb scattering angular collimator French test object Geant4 |
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