THPI013 　光源加速器　 8月1日 国際科学イノベーション棟5階 ホワイエ 13:30-15:30

高強度単色放射源開発のための共鳴条件下におけるコヒーレント回折放射に関する研究

Investigation of Coherent Diffraction Radiation in resonant conditions for developing of an intense monochromatic radiation source

○アリセフ アレクサンダー，荒木 栄（高エネルギー加速器研究機），アルチュモフ コンスタンチン（トムスク工科大学），福田 将史，森川 祐（高エネルギー加速器研究機），森田 遼介（早稲田大学），ナウメンコ ゲナデ，ポチリツィン アレクサンダー（トムスク工科大学），セルゲエワ ダリア（国立研究核大学（MEPhI）），シェヴェレフ ミハイル，シキトフ ヅミツリ，スヒフ レオニド（トムスク工科大学），蓼沼 優一，丹波 智明（早稲田大学），照沼 信浩（高エネルギー加速器研究機），チシェンコ アェクセイ（国立研究核大学（MEPhI）），浦川 順治（高エネルギー加速器研究機），鷲尾 方一（早稲田大学）

○Alexander Aryshev, Sakae Araki (High Energy Accelerator Research Organization), Konstantin Artyumov (Tomsk Polytechnic University), Masafumi Fukuda, Yu Morikawa (High Energy Accelerator Research Organization), Ryosuke Morita (Waseda University), Gennady Naumenko, Alexander Potylitsyn (Tomsk Polytechnic University), Daria Sergeeva (National Research Nuclear University (MEPhI)), Mikhail Shevelev, Dmitry Shkitov, Leonid Sukhikh (Tomsk Polytechnic University), Yuichi Tadenuma, Tomoaki Tanba (Waseda University), Nobuhiro Terunuma (High Energy Accelerator Research Organization), Alexey Tischenko (National Research Nuclear University (MEPhI)), Junji Urakawa (High Energy Accelerator Research Organization), Masakazu Washio (Waseda University)

The motivation for developing intensive THz source at KEK LUCX is coming from the growing interest to THz radiation from various scientific communities worldwide. High gradient photo-cathode RF gun and few tens of femtosecond laser system are used to generate a pre-bunched electron beam of a few hundred femtoseconds. We are investigating the production and properties of the intense radiation beams in the range of 0.1-5 THz based on Grating Diffraction Radiation (GDR) in a single bunch regime of the 8 MeV electron beam at KEK LUCX accelerator. GDR is generated when a charged particle moves in the vicinity of a periodical pattern or grating. The grating type and period can be chosen to make quasi-monochromatic GDR spectrum. In the contrast to conventional Smith-Purcell radiation, GDR has much higher frequency tunability with comparable output pulse energy. In this reports the status of the experiment and GDR basic properties (including polarization characteristics) will be presented. This work was supported by the JSPS-RFBR grant # 18-52-50002 YaF-a under the Japan-Russia Research Cooperative Program.