COHERENT SPONTANEOUS EMISSION FROM SHORT ELECTRON BUNCHES IN FREE-SPACE

Authors
ROBB GRM GINZBURG NS PHELPS ADR SERGEEV AS
Citation
Grm. Robb et al., COHERENT SPONTANEOUS EMISSION FROM SHORT ELECTRON BUNCHES IN FREE-SPACE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 375(1-3), 1996, pp. 535-538
Citations number
6
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
375
Issue
1-3
Year of publication
1996
Pages
535 - 538
Database
ISI
SICI code
0168-9002(1996)375:1-3<535:CSEFSE>2.0.ZU;2-2
Abstract
We study superradiance of an electron bunch which has a finite transve rse size in the frame of a 2-D model. This model includes effects of o ptical guiding as well as transverse electromagnetic energy dissipatio n and diffraction. Using a nonstationary parabolic equation we describ e SR of a sheet shaped electron bunch in free space. It is shown that the radiation is composed of pulses of electromagnetic radiation which are diffracted after escaping from the channel formed by the electron beam. This process is accompanied by a progressive increase of the el ectron efficiency. This enhancement is caused by the: phenomenon of pe rmanent self supporting resonance due to the variation of the radiatio n angle and frequency.