Compact narrow-band THz radiation source based on photocathode rf gun

被引：1
|
作者：
Li Wei-Wei [1 ]
He Zhi-Gang [1 ]
Jia Qi-Ka [1 ]
机构：
[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
来源：
CHINESE PHYSICS C | 2014年 / 38卷 / 04期
关键词：
photocathode rf gun; subpicosecond electron bunch; coherent Cherenkov radiation; THz source; FREE-ELECTRON LASER; GENERATION;
D O I：
10.1088/1674-1137/38/4/047003
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Narrow-band THz coherent Cherenkov radiation can be driven by a subpicosecond electron bunch traveling along the axis of a hollow cylindrical dielectric-lined waveguide. We present a scheme of compact THz radiation source based on the photocathode rf gun. On the basis of our analytic result, the subpicosecond electron bunch with high charge (800 pC) can be generated directly in the photocathode rf gun. According to the analytical and simulated results, a narrow emission spectrum peaked at 0.24 THz with 2 megawatt (MW) peak power is expected to gain in the proposed scheme (the length of the facility is about 1.2 m).
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页数：5
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