Femtosecond electron beam generation by S-band laser photocathode RF gun and linac
- Nuclear Engineering Research Laboratory, University of Tokyo, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1106 (Japan)
- High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba-shi, Ibaraki-ken, 305 (Japan)
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-1106 (Japan)
A laser photocathode RF electron gun was installed in the second linac of the S-hand twin linac system of Nuclear Engineering Research Laboratory (NERL) of University of Tokyo in August in 1997. Since then, the behavior of the new gun has been tested and the characteristic parameters have been evaluated. At the exit of the gun, the energy is 3.5 MeV, the charge per bunch 1{approximately}2&hthinsp;nC, the pulse width is 10 ps(FWHM), respectively, for 6 MW RF power supply from a klystron. The electron bunch is accelerated up to 17 MeV and horizontal and vertical normalized emittances of 3 {pi} mm.mrad are achieved. Then, the bunch is compressed to be 440 fs(FWHM) with 0.35 nC by the chicane-type magnetic pulse compressor. The linac with the gun and a new femto- and picosecond laser system is planned to be installed for femtosecond pulseradiolysis for radiation chemistry in 1999. {copyright} {ital 1999 American Institute of Physics.}
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 704154
- Report Number(s):
- CONF-980742-; ISSN 0094-243X; TRN: 9922M0070
- Journal Information:
- AIP Conference Proceedings, Vol. 472, Issue 1; Conference: 8. workshop on advanced accelerator concepts, Baltimore, MD (United States), 6-11 Jul 1998; Other Information: PBD: Jul 1999
- Country of Publication:
- United States
- Language:
- English
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