High Power THz Radiation From Electron Storage Ring By Means Of Beam Instability

电子存储环通过束流不稳定性产生高功率太赫兹辐射

• 批准号: 18560046
• 负责人: SHOJI Yoshihiko
• 金额: $ 2.31万
• 依托单位: University of Hyogo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560046/
• 关键词: (1)Tera Hertz; (2)coherent radiation; (3)synchrotron radiation; (4)accelerator; (5)electron synchrotron; (6)storaee ring

The time structure of a burst of coherent synchrotron radiation (CSR) emitted from a high-peak-current beam in the electron storage ring NewSUBARU has been investigated. The source of this CSR burst is fine time structure in a bunch produced by longitudinal beam instability. This burst is unstable but very easy to obtain, so it can be used for some experimental applications with appropriate averaging of data. With an averaging period of 10 ms, the fluctuation of the integrated power was about 10%.This fluctuation had a small dependence on the stored current, momentum compaction factor, and the rf acceleration voltage. However when the rf phase was modulated with 2fs (twice of the synchrotron oscillation frequency), the burst structure was modulated with 2fs and the fluctuation of radiation power was reduces at time scale of the synchrotron oscillation. In multi-bunch operation of the ring, there was a correlation of the bursts from bunches in different bucket, which was not expected.

研究了电子存储环 NewSUBARU 中高峰值电流束发射的相干同步辐射 (CSR) 爆发的时间结构。这种 CSR 爆发的来源是由纵梁不稳定性产生的束中的精细时间结构。这种突发不稳定，但很容易获得，因此可以将其用于一些对数据进行适当平均的实验应用。平均周期为10 ms时，积分功率的波动约为10%。这种波动对存储电流、动量压缩因子和射频加速电压的依赖性很小。然而，当射频相位以2fs（同步加速器振荡频率的两倍）调制时，突发结构以2fs调制，并且辐射功率的波动在同步加速器振荡的时间尺度上减小。在环的多束操作中，不同桶中的束的突发存在相关性，这是意料之外的。

项目成果

「研究成果報告書概要(和文)」より

摘自《研究结果报告摘要（日文）》

• 发表时间: 2005
• 作者: Kawauchi;et. al.;Nishimura et al.;Dezawa et al.;Yoshizawa et al.;星野 幹雄;星野 幹雄
• 通讯作者: 星野 幹雄

Coherent THz radiation at NewSUBARU

NewSUBARU 的相干太赫兹辐射

• 发表时间: 2007
• 作者: Yoshihiko;Shoji;庄司 善彦;Yoshihiko Shoji
• 通讯作者: Yoshihiko Shoji

Measurement of the Time Structure of a Coherent Synchrotron Radiation Burst in NewSUBARU

NewSUBARU相干同步加速器辐射爆发时间结构的测量

• 发表时间: 2008
• 期刊: Infrared Physics and Technologies 51
• 作者: Yoshihiko Shoji

Measurement of the Time Structure of a Coherent Synchrotron Radiation Burst in New SUBARU

新斯巴鲁相干同步加速器辐射爆发时间结构的测量

• 发表时间: 2008
• 期刊: Infrared Physics and Technologies Vol. 51
• 作者: Yoshihiko;Shoji
• 通讯作者: Shoji

ニュースバルにおけるCSRバーストの時間構造

新斯巴鲁CSR爆发的时间结构

• 发表时间: 2007
• 作者: Yoshihiko;Shoji;庄司 善彦
• 通讯作者: 庄司 善彦