Study and Development of Extremely Short Pulse Coherent Terahertz Light Source Employing an Electron Isochronous Ring

采用电子等时环的极短脉冲相干太赫兹光源的研究与开发

• 批准号: 20226003
• 负责人: HAMA Hiroyuki
• 金额: $ 132.54万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (S)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008-05-12 至 2013-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20226003/
• 关键词: コヒーレント放射; テラヘルツ光; アイソクロナスリング; 熱陰極高周波電子銃; 空間電荷効果; 時間領域差分法; バンチ圧縮; アルファ磁石; 電子加速器

Production method for short-pulse electron beam with its bunch length around 100 fs or less has been mostly established. The method employs the velocity bunching mechanism in a traveling-wave accelerating structure and an original electron gun. The gun is composed of two independent cavity cells so as to manipulate and optimize the longitudinal phase space electron distribution for the velocity bunching scheme. The accelerator system was completed, after which the electron beam was successfully accelerated up to 50 MeV, thereby it might be possible to produce coherent terahertz (THz) radiation using bending magnets and/or undulators. It can be concluded that a light source accelerator facility for THz science, in which radiation safety program was accurately approved by the national regulation, is established.

束团长度在100 fs左右或更小的短脉冲电子束的产生方法已经基本建立。该方法采用行波加速结构和原始电子枪中的速度聚束机制。该电子枪由两个独立的腔室组成，以操纵和优化速度聚束方案的纵向相空间电子分布。加速器系统完成后，电子束被成功加速到50 MeV，从而有可能使用弯曲磁铁和/或波荡器产生相干太赫兹（THz）辐射。由此可以得出结论，建立了辐射安全方案符合国家规定的太赫兹科学光源加速器设施。

项目成果

Space Charge Effect for Short Electron Bunches in an Alpha Magnet

阿尔法磁体中短电子束的空间电荷效应

• 发表时间: 2008
• 期刊: Proc. International Free Electron Lasers 2008
• 作者: H.Hama;F.Hinode;K Kasamsook;M.Kawai;K.Nanbu;M.Yasuda
• 通讯作者: M.Yasuda

THz Coherent Synchrotron Radiation Project Employing Isochronous Ring with Femtosecond Electron Pulse at Tohoku University

东北大学采用飞秒电子脉冲等时环的太赫兹相干同步辐射项目

• 发表时间: 2010
• 作者: K.Kutsukake;T.Abe;N.Usami;K.Fujiwara;K.Morishita;K.Nakajima;Hiroyuki Hama
• 通讯作者: Hiroyuki Hama

Test-Accelerator as Coherent Terahertz Source Program (t-ACTS) at Tohoku University

东北大学的测试加速器作为相干太赫兹源程序 (t-ACTS)

• 发表时间: 2011
• 期刊: Energy Procedia
• 作者: H.Hama;M.Kawai;S.Kashiwagi;F.Hinode;F.Miyahara;K.Nanbu;T.Muto;Y.Tanaka;X.Li;N-Y.Huang
• 通讯作者: N-Y.Huang

Coherent synchrotron radiation source based on an isochronous accumulator ring with femtosecond electron pulse

基于飞秒电子脉冲等时累加环的相干同步辐射源

• 发表时间: 2011
• 期刊: Proceedings of IPAC2011
• 作者: N.Y. Huang;H. Hama;M. Kawai;S. Kashiwagi;F. Hinode;K. Nanbu;T. Muto;F. Miyahara;Y. Tanaka;X. Li
• 通讯作者: X. Li

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