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Separating the contributions of electric and magnetic fields in deflecting the probes in proton radiography with multiple proton energies
Matter and Radiation at Extremes ( IF 5.1 ) Pub Date : 2021-04-08 , DOI: 10.1063/5.0033834
Bao Du 1 , Hong-Bo Cai 1, 2, 3 , Wen-Shuai Zhang 1 , Xiao-Fang Wang 4 , Dong-Guo Kang 1 , Luan Deng 5 , En-Hao Zhang 5 , Pei-Lin Yao 6 , Xin-Xin Yan 2 , Shi-Yang Zou 1 , Shao-Ping Zhu 1, 5, 7
Affiliation  

In proton radiography, degeneracy of electric and magnetic fields in deflecting the probe protons can prevent full interpretation of proton flux perturbations in the detection plane. In this paper, theoretical analyses and numerical simulations suggest that the contributions of the electric and magnetic fields can be separately obtained by analyzing the difference between the flux distributions of two discriminated proton energies in a single shot of proton radiography. To eliminate the influence of field evolution on the separation, a strategy is proposed in which slow field evolution is assumed or an approximate estimate of field growth is made. This could help achieve a clearer understanding of the radiographic process and allow further quantitative analysis.

中文翻译:

分离电场和磁场对质子射线照相中具有多个质子能量的探头偏转的贡献

在质子射线照相中,使探针质子偏转的电场和磁场的退化会阻止对检测平面中质子通量扰动的完整解释。在本文中,理论分析和数值模拟表明,通过分析一次质子射线照相中两个已区分的质子能量的通量分布之间的差异,可以分别获得电场和磁场的贡献。为了消除场演化对分离的影响,提出了一种假设场演化缓慢或对场增长进行近似估计的策略。这可以帮助您更清晰地了解射线照相过程,并允许进行进一步的定量分析。
更新日期:2021-05-14
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