Optimization of an X-ray SASE-FEL
نویسندگان
چکیده
منابع مشابه
Optimization of an X-ray SASE-FEL
The most important characteristics of an X-ray SASE-FEL are determined by the electron beam energy, transverse and longitudinal emittance, and by choice of the undulator period, field, and gap. Among them are the gain and saturation length, the amount and spectral characteristics of the spontaneous radiation, the wake fields due to the vacuum pipe. The spontaneous radiation intensity is very la...
متن کاملDesign considerations for a SASE X-ray FEL
The well developed theory of short wavelength SASE-FELs is now being used to design two X-ray lasers, LCLS and Tesla-FEL. However, the physics and technology of these projects present some unique challenges, related to the very high peak current of the electron beam, the very long undulator needed to reach saturation, and the importance of preserving the beam phase-space density even in the pre...
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We present a statistical analysis of the temporal and spectral properties of SASE radiation from an energy-chirped electron beam passing through a long undulator. It is found that the coherence time is independent of the chirp, while the range of spectral coherence is linearly proportional to it. We consider the use of a monochromator to pick out a small temporal slice of the radiation output. ...
متن کاملParametric study of an X-ray FEL
An FEL utilizing a high energy, high current and low emittance beam to prtduce radiation shorter than 2 A is investigated in this paper. This device is an extension of the previously proposed 40 A Linac Coherent Light Source based on the Stanford linear accelerator. Here we investigate the performance characteristics and parameter sensitivities of this single pass, high gain FEL amplifier opera...
متن کاملDevelopment of a Femtosecond Soft X-ray SASE FEL at DESY
In this paper we describe the extension of the soft X-ray SASE FEL at the TESLA Test Facility (TTF) at DESY for generation of femtosecond pulses. The idea is based on a technique of \manipulating" the energy spread along the electron bunch. Since the radiation ampli cation process is extremely sensitive to the value of the energy spread, only that part of the electron bunch radiates which has l...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 2001
ISSN: 0168-9002
DOI: 10.1016/s0168-9002(01)01611-4