EXPERIMENTAL, THEORETICAL, AND NUMERICAL INVESTIGATION OF THE HOMOGENIZATION OF DENSITY NONUNIFORMITIES IN THE PERIODIC TRANSPORT OF A SPACE-CHARGE DOMINATED BEAM

被引:28
作者
HABER, I
KEHNE, D
REISER, M
RUDD, H
机构
[1] UNIV MARYLAND, DEPT ELECT ENGN, COLLEGE PK, MD 20742 USA
[2] UNIV MARYLAND, PLASMA PHYS LAB, COLLEGE PK, MD 20742 USA
[3] BERKELEY RES ASSOCIATES INC, SPRINGFIELD, VA 22150 USA
来源
PHYSICAL REVIEW A | 1991年 / 44卷 / 08期
关键词
D O I
10.1103/PhysRevA.44.5194
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The homogenization of a beam with a transversely nonuniform initial density distribution is examined by masking the output from a Pierce electron gun into five parallel beamlets, which are then propagated down a channel of periodically spaced solenoid focusing magnets. Experimental measurements, theoretical predictions, and PIC simulations are in excellent agreement for averaged beam quantities such as rms emittance and envelope radius. In addition, the fine-structure characteristic of the nonlinear evolution of the beam, including the formation of downstream images, is reproduced in detail by the simulations.
引用
收藏
页码:5194 / 5205
页数:12
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