Effect of beam emittance on chromatic blur for proton radiography

Yang Guojun; Zhang Zhuo; Wei Tao; Shi Jinshui

doi:10.3788/HPLPB20132503.0778

Volume 25 Issue 03

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(03): 778-782

Lu Jianxin, Lan Xiaofei, Huang Yongsheng, et al. Energy spectra of protons driven by ultra-short laser interaction with thin gold foils[J]. High Power Laser and Particle Beams, 2012, 24: 1879-1881. doi: 10.3788/HPLPB20122408.1879

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Yang Guojun, Zhang Zhuo, Wei Tao, et al. Effect of beam emittance on chromatic blur for proton radiography[J]. High Power Laser and Particle Beams, 2013, 25: 778-782. doi: 10.3788/HPLPB20132503.0778

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Effect of beam emittance on chromatic blur for proton radiography

doi: 10.3788/HPLPB20132503.0778

1.
Institute of Fluid Physics,CAEP,P.O.Box 919-106,Mianyang 621900,China

Received Date: 2012-05-29
Rev Recd Date: 2012-11-02
Publish Date: 2013-03-05

Abstract

Abstract

The process of emittance increase in proton radiography is analyzed. A radiographic system is designed, and based on it the factors affecting emittance increase are studied with theoretical analysis and Monte Carlo simulation. The results show that the extracted emittance from the accelerator is neglectable for high energy proton radiography, and cannot be neglected for medium energy proton radiography. The extracted emittance could be reduced through decreasing the thickness of the diffuser and enhancing the focusing ability of the accelerators extraction system.
- proton radiography,
- emittance,
- chromatic aberration,
- blur

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