2014
DOI: 10.1063/1.4890586
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Flying radio frequency undulator

Abstract: A concept for the room-temperature rf undulator, designed to produce coherent X-ray radiation by means of a relatively low-energy electron beam and pulsed mm-wavelength radiation, is proposed. The “flying” undulator is a high-power short rf pulse co-propagating together with a relativistic electron bunch in a helically corrugated waveguide. The electrons wiggle in the rf field of the −1st spatial harmonic with the phase velocity directed in the opposite direction in respect to the bunch velocity, so that parti… Show more

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Cited by 41 publications
(13 citation statements)
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“…To do this, it suffices to synchronize properly the magnetic field source and the electron accelerator, which can be performed online from pulse to pulse. Alongside a prospective BWOs applications in recently proposed research studies (see [28], [49]- [51]), the above described method of the beam path variation could be of interest for numerous HPM experiments with Cherenkov-type beam-wave interaction.…”
Section: Discussionmentioning
confidence: 99%
“…To do this, it suffices to synchronize properly the magnetic field source and the electron accelerator, which can be performed online from pulse to pulse. Alongside a prospective BWOs applications in recently proposed research studies (see [28], [49]- [51]), the above described method of the beam path variation could be of interest for numerous HPM experiments with Cherenkov-type beam-wave interaction.…”
Section: Discussionmentioning
confidence: 99%
“…The principle of the MU can be found in [3,[11][12][13]. The highfrequency FEL radiation is generated from the stimulated Compton counter scattering of the backward traveling wave by the relativistic electron bunch, which has a high Doppler upshift frequency [14].…”
Section: The Principle Of the Flying Microwave Undulatormentioning
confidence: 99%
“…It has interesting features as it can couple two operating modes in the circular waveguide to generate new eigenmodes. It has attracted considerable interest and found its applications in gyrotron backward wave oscillators (gyro-BWOs) [15,16], gyrotron traveling wave amplifiers (gyro-TWAs) [17][18][19], mode converters [20,21], microwave pulse compressors [22,23], and as a microwave undulator [11]. The inner surface of an HCW can be expressed in cylindrical coordinates as ( , ) = 0 + 1 ( + 2 / ) (5) where R 0 is the mean radius of the circular waveguide, R 1 is the corrugation depth, m B is the fold number, and d is the axial period of the corrugation.…”
Section: Hcw As Microwave Undulatormentioning
confidence: 99%
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“…The microwave undulator can either operate in the standing wave mode by using a cavity structure or the backward traveling wave mode by using a waveguide structure [8][9][10][11]. A microwave undulator using a cavity composed of a corrugated waveguide operating at X-band has been designed and tested in SLAC.…”
Section: Introductionmentioning
confidence: 99%