Coherent Edge Radiation Sources in Linac-Based Infrared Free-Electron Laser Facilities

Sei, Norihiro; Hayakawa, Ken; Hayakawa, Yasushi; Nogami, Kyoko; Ogawa, Hiroshi; Ohgaki, Hideaki; Sakai, Takeshi; Sumitomo, Yoske; Tanaka, Toshinari; Zen, Heishun

doi:10.18429/JACoW-LINAC2018-MOPO073

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RIS citation export for MOPO073: Coherent Edge Radiation Sources in Linac-Based Infrared Free-Electron Laser Facilities

TY  - CONF
AU  - Sei, N.
AU  - Hayakawa, K.
AU  - Hayakawa, Y.
AU  - Nogami, K.
AU  - Ogawa, H.
AU  - Ohgaki, H.
AU  - Sakai, T.
AU  - Sumitomo, Y.
AU  - Tanaka, T.
AU  - Zen, H.
ED  - Pei, Guoxi
ED  - Schaa, Volker RW
ED  - Chin, Yong Ho
ED  - Fu, Shinian
ED  - Zhao, Ning
TI  - Coherent Edge Radiation Sources in Linac-Based Infrared Free-Electron Laser Facilities
J2  - Proc. of LINAC2018, Beijing, China, 16-21 September 2018
CY  - Beijing, China
T2  - Linear Accelerator Conference
T3  - 29
LA  - english
AB  - National Institute of Advanced Industrial Science and Technology has been studied far-infrared coherent radiation at Linac-based infrared free-electron laser (FEL) facilities in col-laboration with Nihon University and Kyoto University. To obtain high FEL gain at Laboratory for Electron Beam Research and Application (LEBRA) in Nihon University and at Kyoto Uni-versity Free Electron Laser (KU-FEL), the electron-bunch length is compressed to less than 1 ps in their undulator sections. Short electron bunches are suitable for generating intense coher-ent radiation, and we have already developed some terahertz-wave sources based on the coher-ent synchrotron radiation and the coherent transition radiation [1-3]. However, it was difficult to observe them with sufficient intensity without disturbing the infrared FEL oscillations. Then, we now develop coherent edge radiation emitted from downstream bending magnets in the un-dulator sections. It can be extracted from the undulator sections without disturbing the FEL os-cillations. In this presentation, the observed coherent radiation at LEBRA and KU-FEL will be reported on.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 154
EP  - 156
KW  - FEL
KW  - electron
KW  - radiation
KW  - undulator
KW  - cavity
DA  - 2019/01
PY  - 2019
SN  - 2226-0366
SN  - 978-3-95450-194-6
DO  - DOI: 10.18429/JACoW-LINAC2018-MOPO073
UR  - http://jacow.org/linac2018/papers/mopo073.pdf
ER  -