Analytical solution of phase space evolution of electrons in a SASE FEL

Nishimori, Nobuyuki

The phase space evolution of electrons in a self-amplified spontaneous emission (SASE) FEL operating in the linear regime before saturation is solved analytically from the one dimensional (1D) FEL equaiton. The analytical solution agrees well with a time-dependent numerical simulation which solves the 1D FEL equation in an exact manner and includes a shot-noise effect. The radiation field reaches saturation when the optimum bunching of the electrons is formed on the scale of the resonant wavelength. The optimum bunching leads to the well known saturation condition Nw 1.

Language	:	English
Journal	:	Proceedings of 26th International Free Electron Laser Conference (FEL 2004) and 11th FEL Users Workshop (CD-ROM)
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Pages	:	p.41 - 44
Publication Year/Month	:	2004/00
Meeting title	:	26th International Free Electron Laser Conference (FEL 2004) and 11th FEL Users Workshop
Held date	:	2004/08
Location (city)	:	Trieste
Location (country)	:	Italy
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DOI for research data	:
Keywords	:	SASE; Phase Space; FEL
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Article of JAEA R&D Review	:
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Registration No. : B20040731
JAEA Abstracts No. :
Paper Submission No. : 1048

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