Chinese Physics C > 2016, Vol. 40 > Issue(2): 028201 DOI: 10.1088/1674-1137/40/2/028201

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

Hai-Bo Xu,
Na Zheng^,

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 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.
- proton radiography,
- multiple Coulomb scattering,
- angular collimator,
- French test object,
- Geant4

References

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[3]	C. L. Morris, J. W. Hopson, P. Goldstone, Proton Radiography, Los Alamos National Laboratory, LA-UR-06-0331 (2006)
[4]	C. T. Mottershead, J. D. Zumbro, Magnetic Optics for Proton Radiography, in Proceedings of the 1997 Particle Accelerator Conference (Canada: Vancouver B C, 1997), p. 1397
[5]	J. D. Zumbro, Angle-cuts for the Brookhaven Proton Radiography Experiments E955 and E963 Calculated with MCNPm TM (U), Los Alamos National Laboratory, LA-UR-05-7370 (2005)
[6]	H. B. Xu, High Power Laser and Particle Beams, 18(3): 477-482 (2006) (in Chinese)
[7]	M. B. Aufderheide, H. S. Park, E. P. Hartouni et al, Proton Radiography as a Means of Material Characterization, Lawrence Livermore National Laboratory, UCRL-JC-134595 (1999)
[8]	F. Neri, P. L. Walstrom, Nuclear Instruments and Methods in Physics Research B, 229: 425-435 (2005)
[9]	C. L. Morris, E. Ables, K. R. Alrick et al, Journal of Applied Physics, 109: 104905 (2011)
[10]	X. Z. He, G. J. Yang, C. J. Liu, High Power Laser and Particle Beams, 20(2): 297-300 (2008) (in Chinese)
[11]	H. B. Xu, N. Zheng, Chinese Physics C, 39 (7): 078201 (2015)
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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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通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

Hai-Bo Xu
Na Zheng^,

Corresponding author:Na Zheng,

1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date:2015-04-08
Accepted Date:2015-09-18
Available Online:2016-02-20

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.