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Proceedings Paper

A few hundred femtosecond FEL with a few kW average and one GW peak power for academic and industrial applications
Author(s): Eisuke J. Minehara; Ryoichi Hajima; Masaru Sawamura; Ryoji Nagai; Nobuyuki Nishimori; Nobuhiro Kikuzawa; Masayoshi Sugimoto; Toshihiko Yamauchi; Taketo Hayakawa; Toshiyuki Shizuma
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Paper Abstract

The JAERI FEL group has successfully discovered, and realized the brand-new FEL lasing of 255fs ultrafast pulse, 6-9% high-efficiency, one gigawatt high peak power, a few kilowatts average power, and wide tenability of medium and far infrared wavelength regions at the same time. The new lasing was named to be “high-degeneracy superradianct lasing of FEL”. Using the new lasing, we could realize a powerful and efficient free-electron laser(FEL) for industrial uses, for examples, pharmacy, medical, defense, shipbuilding, semiconductor industry, chemical industries, environmental sciences, space-debris, power beaming and so on. In order to realize such a tunable, highly-efficient, high average power, high peak power and ultra-short pulse FEL, we need the efficient and powerful FEL driven by JAERI compact, stand-alone and zero-boil-off super-conducting rf linac with an energy-recovery geometry. Our discussions on the FEL will cover market-requirements and roadmap for the industrial FELs, some answers from the JAERI compact, stand-alone and zero-boil-off cryostat concept and operational experience over these 10 years, our discovery of the new highly-efficient, high-power, and ultra-short pulse lasing mode, and the energy-recovery geometry.

Paper Details

Date Published: 19 February 2003
PDF: 10 pages
Proc. SPIE 4830, Third International Symposium on Laser Precision Microfabrication, (19 February 2003); doi: 10.1117/12.486533
Show Author Affiliations
Eisuke J. Minehara, Japan Atomic Energy Research Institute (Japan)
Ryoichi Hajima, Japan Atomic Energy Research Institute (Japan)
Masaru Sawamura, Japan Atomic Energy Research Institute (Japan)
Ryoji Nagai, Japan Atomic Energy Research Institute (Japan)
Nobuyuki Nishimori, Japan Atomic Energy Research Institute (Japan)
Nobuhiro Kikuzawa, Japan Atomic Energy Research Institute (Japan)
Masayoshi Sugimoto, Japan Atomic Energy Research Institute (Japan)
Toshihiko Yamauchi, Japan Atomic Energy Research Institute (Japan)
Taketo Hayakawa, Japan Atomic Energy Research Institute (Japan)
Toshiyuki Shizuma, Japan Atomic Energy Research Institute (Japan)


Published in SPIE Proceedings Vol. 4830:
Third International Symposium on Laser Precision Microfabrication
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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