Undulator interruption in high-gain free-electron lasers

被引：12
|
作者：
Kim, KJ [1 ]
机构：
[1] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 407卷 / 1-3期
关键词：
D O I：
10.1016/S0168-9002(97)01381-8
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The effect of interrupting an undulator on the performance of high-gain free-electron lasers (FELs) is evaluated by analyzing 1-D Maxwell-Vlasov equations. It is found that the effect is small for a reasonable length of the interruptions for FEL parameters envisaged for short-wavelength self-amplified spontaneous emission (SASE). Since the interruptions provide valuable space for quadrupoles and diagnostics, and at the same time permit a greater flexibility in mechanical design, the result of this paper is encouraging for construction of long undulator magnets required for SASE. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：126 / 129
页数：4
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