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High power THz source based on coherent radiation of picosecond relativistic electron bunch train 被引量:6

High power THz source based on coherent radiation of picosecond relativistic electron bunch train
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摘要 Tunable and compact high power terahertz (THz) radiation based on coherent radiation (CR) of the picosecond relativistic electron bunch train is under development at the Tsinghua accelerator lab. Coherent synchronization radiation (CSR) and coherent transition radiation (CTR) are researched based on an S-band compact electron linac, a bending magnet or a thin foil. The bunch train's form factors, which are the key factor of THz radiation, are analyzed by the PARMELA simulation. The effects of electron bunch trains under different conditions, such as the bunch number, bunch charges, micro-pulses inter-distance, and accelerating gradient of the gun are investigated separately in this paper. The optimal radiated THz power and spectra should take these factors as a whole into account. Tunable and compact high power terahertz (THz) radiation based on coherent radiation (CR) of the picosecond relativistic electron bunch train is under development at the Tsinghua accelerator lab. Coherent synchronization radiation (CSR) and coherent transition radiation (CTR) are researched based on an S-band compact electron linac, a bending magnet or a thin foil. The bunch train’s form factors, which are the key factor of THz radiation, are analyzed by the PARMELA simulation. The effects of electron bunch trains under different conditions, such as the bunch number, bunch charges, micro-pulses inter-distance, and accelerating gradient of the gun are investigated separately in this paper. The optimal radiated THz power and spectra should take these factors as a whole into account.
出处 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第S2期197-200,共4页 中国科学:物理学、力学、天文学(英文版)
基金 supported by the National Natural Science Foundation of China (Grant No. 10975088)
关键词 THZ radiation high power RELATIVISTIC ELECTRONS CR PARMELA THz radiation high power relativistic electrons CR PARMELA
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