Author/Authors :
Hama، نويسنده , , H. and Kimura، نويسنده , , K. and Hosaka، نويسنده , , M. and Yamazaki، نويسنده , , Andrew J. and Kinoshita، نويسنده , , T.، نويسنده ,
Abstract :
A new helical optical klystron, UNKO-3, for a UV-free electron laser has been installed and commissioned on the UVSOR storage ring, Okazaki. Lasings at a visible wavelength region around 470 nm and a UV region down to 260 nm were obtained in test experiments. It was found that the mirror degradation rate with radiation from a helical mode was several tens of times slower than that with a planar mode.