Simulation of the SASE FEL: the PAL-XFEL

被引：3

作者：

Lee, Tae-Yeon ^{[1
]}

Kang, Heung Sik ^{[1
]}

Choi, Jinhyuk ^{[1
]}

机构：

[1] Pohang Accelerator Lab, Kyungbuk 790784, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2007年 / 50卷 / 04期

关键词：

simulation; free electron laser; SASE; saturation;

D O I：

10.3938/jkps.50.992

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The X-ray free electron laser (FEL) based on the self-amplified spontaneous emission (SASE) scheme is now one of the most important subjects in the light source community. Although its theoretical understanding has seen a big progress, a simulation code is the ultimate tool for studying the SASE process. This paper simulates an example of the SASE FEL, focusing on the process leading to the saturation and beyond. The synchrotron oscillation is shown to be responsible for the behavior of SASE in the non-linear region. The difference from the conventional FEL amplifier is discussed. It is shown that the saturation point and the linear region's endpoint are defined unambiguously by use of the bunching factor.

引用

页码：992 / 996

页数：5

共 14 条

[1] COLLECTIVE INSTABILITIES AND HIGH-GAIN REGIME IN A FREE-ELECTRON LASER [J].

BONIFACIO, R ;

PELLEGRINI, C ;

NARDUCCI, LM .

OPTICS COMMUNICATIONS, 1984, 50 (06) :373-378

[2]

Choi J, 2006, J KOREAN PHYS SOC, V48, P801

[3]

CHOI J, IN PRESS J KOREAN PH

[4] SYNCHROTRON INSTABILITY FOR LONG PULSES IN FREE-ELECTRON LASER-OSCILLATORS [J].

COLSON, WB ;

FREEDMAN, RA .

OPTICS COMMUNICATIONS, 1983, 46 (01) :37-42

[5] ONE-BODY ELECTRON DYNAMICS IN A FREE-ELECTRON LASER [J].

COLSON, WB .

PHYSICS LETTERS A, 1977, 64 (02) :190-192

[6] Influence of electron beam halos on the FEL performance [J].

Faatz, B ;

Reiche, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 429 (1-3) :238-242

[7]

KROLL NM, 1980, PHYS QUANTUM ELECT, V7

[8]

Lee TY, 2006, J KOREAN PHYS SOC, V48, P791

[9] FREE-ELECTRON LASERS FOR THE XUV SPECTRAL REGION [J].

MURPHY, JB ;

PELLEGRINI, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 237 (1-2) :159-167

[10]

Park JH, 2004, J KOREAN PHYS SOC, V44, P1303

← 1 2 →