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Zhang, Rui; Zhou, Xiangyu; Natsui, Takuya; Yoshida, Mitsuhiro; Ogawa, Yujiro, E-mail: rui.zhang@kek.jp
Proceedings of the 12th annual meeting of Particle Accelerator Society of Japan2015
Proceedings of the 12th annual meeting of Particle Accelerator Society of Japan2015
AbstractAbstract
[en] SuperKEKB project is aimed at the generation of electron beams with a charge of 5 nC and a normalized emittance of 10 μm at injector linac. According to these demands, an Ytterbium (Yb) laser system is selected for RF-gun. For realizing the laser system operating under 25 Hz with double pulses or 50 Hz under single pulse operation, Yb-doped fiber and Yb:YAG thin-disk hybrid laser system with a central wavelength of 259 nm and a pulse width of 20 ps is developed. 3.0 nC bunch charge has been gotten by use of current laser system. In order to achieve more stable and efficient electron beam, improvements has been being done. In this letter, some improvements are introduced for optimizing the laser system. (author)
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Particle Accelerator Society of Japan, Tokyo (Japan); 1419 p; Aug 2015; p. 834-837; 12. annual meeting of Particle Accelerator Society of Japan; Tsuruga, Fukui (Japan); 5-7 Aug 2015; Available from Particle Accelerator Society of Japan, 2-62-8-507 Higashi-Ikebukuro, Toshima-ku, Tokyo, 170-0013 Japan; Also available from the Internet at URL http://www.pasj.jp/web_publish/pasj2015/proceedings/index.html; 5 refs., 11 figs., 1 tab.
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