Acceleration of relativistic electrons by an intense focused laser radiation combined with a static homogeneous almost collinear magnetic field

Interaction of electrons with a focused laser field combined with a static magnetic field is considered. The gain of energy acquired by the electron after crossing the laser focus is found. Optimal conditions for efficient acceleration of electrons are determined. The efficiency of acceleration is s...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1992-01, Vol.28 (1), p.265-271
Main Authors: Apollonov, V.V., Fedorov, M.V., Prokhorov, A.M., Suzdal'tsev, A.G.
Format: Article
Language:English
Subjects:
661220 > Particle Beam Production & Handling
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340 > Plasma Waves, Oscillations, & Instabilities-- (1992-)
700350 > Plasma Production, Heating, Current Drive, & Interactions-- (1992-)
ACCELERATION
AMPLIFICATION
BEAM INJECTION
BEAMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ENGINEERING
Exact sciences and technology
Free electron lasers
Fundamental areas of phenomenology (including applications)
GAIN
Geometrical optics
INTERACTIONS
Laser modes
LASER RADIATION
Laser theory
LASER-PRODUCED PLASMA
LEPTON BEAMS
MAGNETIC FIELDS
Optical propagation
Optics
PARTICLE BEAMS
Physics
PLASMA
PLASMA ACCELERATION
Plasma accelerators
Plasma waves
RADIATIONS 426002 > Engineering-- Lasers & Masers-- (1990-)
RELATIVISTIC BEAM INJECTION
Ta
Targets > (1992-)
Wave optics
Wave propagation in random media
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Summary:Interaction of electrons with a focused laser field combined with a static magnetic field is considered. The gain of energy acquired by the electron after crossing the laser focus is found. Optimal conditions for efficient acceleration of electrons are determined. The efficiency of acceleration is shown to be maximal in the case of almost, but not exactly, coinciding directions of a static magnetic field and of propagation of the laser radiation (almost collinear geometry). A small optimal angle between these two directions is shown to be on the order of the inverse relativistic factor 1/ gamma . An optimal ratio of the 'transverse to longitudinal' electron energy in a static magnetic field and optimal conditions of light focusing are found. The optimized electron energy gain Delta epsilon /sub opt/ is shown to be a linear function of gamma . It is shown that Delta epsilon /sub opt/ can be rather large at a moderately high intensity of the laser radiation in the focus.< >
ISSN:0018-9197
1558-1713
DOI:10.1109/3.119522