Single-shot reconstruction of core 4D phase space of high-brightness electron beams using metal grids

被引:11
作者
Marx, D. [1 ,2 ]
Navarro, J. Giner [3 ]
Cesar, D. [3 ]
Maxson, J. [4 ]
Marchetti, B. [1 ]
Assmann, R. [1 ]
Musumeci, P. [3 ]
机构
[1] DESY, Notkestr 85, D-22607 Hamburg, Germany
[2] Univ Hamburg, Dept Phys, Jungiusstr 9-11, D-20355 Hamburg, Germany
[3] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[4] Cornell Univ, CLASSE, Ithaca, NY 14853 USA
来源
PHYSICAL REVIEW ACCELERATORS AND BEAMS | 2018年 / 21卷 / 10期
基金
美国国家科学基金会;
关键词
DIFFRACTION;
D O I
10.1103/PhysRevAccelBeams.21.102802
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
This paper details the development of a single-shot diagnostic technique for the 4D average and core phase space densities of low-charge, high-brightness electron beams, based on the analysis of shadow point-projection images of metal grids. This technique is similar to the standard pepper pot method, although it allows much greater transmission of the beam and therefore is more suitable for low-charge electron beams. Transverse coupling terms are included in the analysis, allowing the complete 4D transverse beam matrix to be reconstructed. The 4D beam phase space information is extremely important for the characterization of nonround beams. An analysis of the resolution limits and experimental benchmarking of the technique with pepper-pot emittance measurements are presented.
引用
收藏
页数:14
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