DEVELOPMENT OF COMPACT THZ-FEL SYSTEM AT KYOTO UNIVERSITY
DEVELOPMENT OF COMPACT THZ-FEL SYSTEM AT KYOTO UNIVERSITY
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京都大学紧凑型 THZ-FEL 系统的开发
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
H. Ohgaki
中科院分区：
文献类型：
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作者：
Suphakul Sikharin;Yusuke Tsugamura;H. Zen;T. Kii;H. Ohgaki
京都大学先进能源研究所正在开发一种基于自由电子激光器的小型加速器太赫兹辐射源。该系统由一个1.6室的S波段BNL型光阴极射频电子枪、聚焦螺线管磁铁、磁聚束压缩器、聚焦四极杆和波荡器组成。该系统将产生比辐射波长短几百飞秒的超短电子脉冲，期望从波荡器产生超辐射发射。目标辐射波长为100至300 μm。利用PARMELA和通用粒子跟踪器（GPT）程序进行了跟踪仿真和优化。用一维自由电子激光理论分析了自由电子激光辐射。文中给出了设计参数、仿真结果和现状。
We are developing a compact accelerator based terahertz (THz) radiation source by free-electron laser (FEL) at the Institute of Advanced Energy, Kyoto University. The system consists of a 1.6-cell S-band BNL-type photocathode RF-gun, a focusing solenoid magnet, a magnetic bunch compressor, focusing quadrupoles and an undulator. The system will generates an ultra-short electron pulse in a few hundred femtoseconds shorter than radiation wavelength, expecting for a super-radiant emission from the undulator. The target radiation wavelength is 100 to 300 μm. A tracking simulation and optimization are performed by using PARMELA and General Particle Tracer (GPT) code. The FEL radiations are analyzed by a 1 dimensional FEL theory. The design parameters, simulation results and status are reported and discussed in this paper.