| SASE自由电子激光 |
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| 引用本文： | 张令翊,庄杰佳,赵夔,陈佳洱.SASE自由电子激光[J].强激光与粒子束,2001,13(2):173-176. |
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| 作者姓名： | 张令翊 庄杰佳 赵夔 陈佳洱 |
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| 作者单位： | 1. 北京大学 重离子物理研究所，北京 100871；2. 中科院 高能物理研究所，北京100080；3. 中国科学院 空间科学与应用研究中心，北京100080 |
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| 基金项目： | 国家教育部资助课题 !(1998-0 0 7)，国家自然科学基金!(497742 45 )资助 |
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| 摘 要： | SASE自由电子激光可以产生短至0.1nm的高亮度（峰值亮度比当前的第三代同步辐射高10个量级；平均亮度高3~5个量级）、短脉冲（脉冲长度小于2个量级、达到亚皮秒水平）硬X射线相干光。因而被称为是继第三代同步辐射之后的第四代光源。SASE依据的是高增益自由电子激光原理，利用了光阴极微波电子枪技术和电子直线加速器技术。综述了SASE的历史发展、基本原理、基本结构、主要物理特征和对电子束的要求。
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| 关 键 词： | SASE 高增益自由电子激光 第四代光源 |
| 文章编号： | 1001—4322(2001)02—0173—04 |
| 收稿时间： | 2000/11/14 |
| 修稿时间： | 2000年11月14 |
SASE free-electron lasers |
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| ZHANG Ling yi ,ZHUANG Jie jia ,ZHAO Kui ,CHEN Jia er.SASE free-electron lasers[J].High Power Laser and Particle Beams,2001,13(2):173-176. |
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| Authors: | ZHANG Ling yi ZHUANG Jie jia ZHAO Kui CHEN Jia er |
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| Institution: | 1. Institute of Heavy Ion Physics, Peking University, Beijing 100871, China;2. Institute of High Energy Physics, the Chinese Academy of Sciences, P. O. Box 2732, Beijing 100080, China;3. Center for Space Science and Applied Research, The Chinese Academy of Sciences, P. O. Box 8701, Beijing 100080, China |
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| Abstract: | As the fourth generation light source hard X-ray SASE free-electron laser has many unique properties superior to the 3rd synchrotron radiation: higher brightness (ten orders of magnitude of peak spectral bribhteness and three～five orders of magnitude of average brightness greater than the 3rd synchrotron radiation currently acjhieved), shorter pulse (two orders of magnitude of pulse duration shorter than the 3rd synchrotron radiation, down to sub-picosecond), shorter wavelength down to 0.1nm etc.. SASE is based on the principle of high gain free electron lasers, and technologies of photoinjector and linear accelerator. The development history of SASE, the basic theory, the typical configuration, the main physical characteristics and the requirements for electron beam is described. |
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| Keywords: | SASE free electron lasers fourth generation light sources |
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