Properties of the ultrashort gain length, self-amplified spontaneous emission free-electron laser in the linear regime and saturation

被引：26
|
作者：
Murokh, A
Agustsson, R
Babzien, M
Ben-Zvi, I
Bertolini, L
van Bibber, K
Carr, R
Cornacchia, M
Frigola, P
Hill, J
Johnson, E
Klaisner, L
Le Sage, G
Libkind, M
Malone, R
Nuhn, HD
Pellegrini, C
Reiche, S
Rakowsky, G
Rosenzweig, J
Ruland, R
Skaritka, J
Toor, A
Tremaine, A
Wang, X
Yakimenko, V
机构：
[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[2] Brookhaven Natl Lab, Upton, NY 11973 USA
[3] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
[4] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA
来源：
PHYSICAL REVIEW E | 2003年 / 67卷 / 06期
关键词：
D O I：
10.1103/PhysRevE.67.066501
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
VISA (Visible to Infrared SASE Amplifier) is a high-gain self-amplified spontaneous emission (SASE) free-electron laser (FEL), which achieved saturation at 840 nm within a single-pass 4-m undulator. The experiment was performed at the Accelerator Test Facility at BNL, using a high brightness 70-MeV electron beam. A gain length shorter than 18 cm has been obtained, yielding a total gain of 2x10(8) at saturation. The FEL performance, including the spectral, angular, and statistical properties of SASE radiation, has been characterized for different electron beam conditions. Results are compared to the three-dimensional SASE FEL theory and start-to-end numerical simulations of the entire injector, transport, and FEL systems. An agreement between simulations and experimental results has been obtained at an unprecedented level of detail.
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页数：5
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