High energy laser wakefield acceleration.

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Bibliographic Details
Title:	High energy laser wakefield acceleration.
Authors:	Kotaki, Hideyuki, Kando, Masaki, Hosokai, Tomonao, Kondo, Shuji, Masuda, Shinichi, Kanazawa, Shuhei, Yokoyama, Takashi, Matoba, Toru, Nakajima, Kazuhisa
Source:	International Journal of Applied Electromagnetics & Mechanics. 2001, Vol. 14 Issue 1-4, p255. 8p.
Subjects:	Electron beams, Microtrons, Free electron lasers
Abstract:	Abstract. Laser wakefield acceleration (LWFA) experiment using 100TW laser is planned at JAERI-Kansai. High quality short pulse electron beams and the precise electron-laser synchronization are necessary to accelerate the electron beam by the laser. A microtron with a photocathode rf-gun was developed as a high quality electron injector. The quantum efficiency(QE) of the photocathode was measured to be 2 x 10[sup-5]. Emittance and a pulse width of the electron beams were 6π mm-mrad and 10ps, respectively. In order to produce a short pulse electron beam, and to synchronize between the electron beam and the laser pulse, the inverse free electron laser (IFEL) is planed. A gas jet was set up and a density of the gas was measured by Mach-Zehnder interferometer. In order to overcome a short acceleration length of the LWFA, the Z-pinch plasma waveguide has been developed for 1 GeV laser wakefield acceleration. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	Abstract. Laser wakefield acceleration (LWFA) experiment using 100TW laser is planned at JAERI-Kansai. High quality short pulse electron beams and the precise electron-laser synchronization are necessary to accelerate the electron beam by the laser. A microtron with a photocathode rf-gun was developed as a high quality electron injector. The quantum efficiency(QE) of the photocathode was measured to be 2 x 10[sup-5]. Emittance and a pulse width of the electron beams were 6π mm-mrad and 10ps, respectively. In order to produce a short pulse electron beam, and to synchronize between the electron beam and the laser pulse, the inverse free electron laser (IFEL) is planed. A gas jet was set up and a density of the gas was measured by Mach-Zehnder interferometer. In order to overcome a short acceleration length of the LWFA, the Z-pinch plasma waveguide has been developed for 1 GeV laser wakefield acceleration. [ABSTRACT FROM AUTHOR]
ISSN:	13835416
DOI:	10.3233/jae-2002-383