Compact Waveguide-mode Terahertz Free-electron Lasers in KAERI

分類加速器セミナー
開始2015/02/12(木)13:30
終了
会場3号館5階会議室
講演タイトル
講演者Prof. Young Uk Jeong (Korea Atomic Energy Research Institute (KAERI))
言語英語/English
連絡先陳 栄浩 (5268)
ウェブサイト
食堂・売店利用予定なし/0

概要

We have developed compact terahertz (THz) free electron lasers (FELs) by using classical microtrons driven by magnetrons. The main advantages of the magnetron-driven microtron are compactness, cost-effectiveness, and high beam quality (relatively low emittance and energy spread). However, the peak current of the microtron is less than 1 A (~10 pC for 15 ps bunch duration) and it is not easy to get enough gain for FEL operation with the beam. To enhance the interaction between electrons and electromagnetic waves in the FEL oscillators, we used a parallel-plate waveguide for our first THz FEL (100-300 micro-meter light with linear polarization) and a circular waveguide for the second THz FEL (400-600 micro-meter, circular polarization). I will introduce some technical points for the waveguide-mode FEL oscillators, for example, mode size and loss in the waveguides, undulators, outcoupling of the radiation, applications, and so on.

会議とセミナー一覧

2018年9月

            1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30