Paper |
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TUPSO41 |
The Ultrashort Beam Linac System and Proposed Coherent THz Radiation Sources at NSRRC |
309 |
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- W.K. Lau, A.P. Lee
NSRRC, Hsinchu, Taiwan
- N.Y. Huang, Z.Y. Wei
NTHU, Hsinchu, Taiwan
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The NSRRC ultrashort beam facility is a low energy linac system which is being built to produce femtosecond electron beam for novel light source development. Experiments on prebunched THz FEL and inverse Compton scattering x-ray source are under study. The electron source is a 2998 MHz, 1.5-cell thermionic rf gun with uneven full-cell to half-cell field ratio that is optimized to produce a energy-chirped electron beam. With movable slits in its vacuum vessel, the alpha magnet system is served also as a beam selector. Further bunch compression is done by velocity bunching in the rf linac. Recent progress of the construction of this facility as well as the design study of a prebunched THz FEL with this ultrashort electron beam will be reported.
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