Recirculated Wave Undulators for Compact FELs
نویسندگان
چکیده
منابع مشابه
Traveling Wave Undulators for FELs and Synchrotron Radiation Sources
We study the use of a traveling wave waveguide as an undulator for short wavelength free-electron lasers (FELs) and synchrotron radiation sources. This type of undulator -which we will call TWUcan be useful when a short electron oscillation period and a large aperture for the propagation of the beam are needed. The availability of high power X-band microwave sources, developed for the electron-...
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RF undulators, suggested long time ago, has the advantage of fast dynamic control of polarization, undulator strength and wavelength. However, RF undulators require very strong RF fields in order to produce radiation of the same order as conventional static devices. Very high power RF energy confined inside a waveguide or a cavity can provide the necessary RF fields to undulate the electron bea...
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The so-called in-vacuum undulators, in which magnet arrays are installed inside the vacuum chamber, have been proved to be a promising way toward shorter wavelength of synchrotron radiation (SR). Especially, it has been adopted in lots of medium-scale SR facilities to provide angstrom x rays to carry out protein-crystallography experiments. Needless to say, there have been a number of technical...
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A range of elliptical undulators (EU) has recently been constructed at ELETTRA, whose main parameters are listed in Table 1 below. They are all based on the APPLE-II scheme [1], but two different terminations have been used due to specific installation requirements. Also, one of them (EU12.5) features a quasi-periodic field to suit special beamline needs. The minimum magnetic gap corresponds to...
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Simple formulas for optimization of VUV and X-ray SASE FELs are presented. The FEL gain length and the optimal beta-function are explicitly expressed in terms of the electron beam and undulator parameters. The FEL saturation length is estimated taking into account quantum diffusion in the undulator. Examples of the FEL optimization are given. Parameters of a SASE FEL, operating at the Compton w...
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ژورنال
عنوان ژورنال: Applied Sciences
سال: 2021
ISSN: 2076-3417
DOI: 10.3390/app11135936