scholarly journals Accurate calculation of radiation damping parameters in the interaction between very intense laser beams and relativistic electron beams

2014 ◽  
Vol 32 (3) ◽  
pp. 477-486 ◽  
Author(s):  
Alexandru Popa
Keyword(s):  
Electromagnetic Field ◽  
Laser Beam ◽  
Relativistic Electron ◽  
Electron Energy ◽  
Electron Beams ◽  
Radiation Reaction ◽  
Radiation Damping ◽  
Intense Laser ◽  
Laser Beams ◽  
Relativistic Electron Beams

AbstractWe prove that the radiation damping force and the rate of change of the damping energy, in the Landau-Lifshitz forms, in interactions between very intense laser beams and relativistic electron beams, are periodic functions of only one variable, that is the phase of the electromagnetic field. The property is proved without using any approximation, in the most general case, when the degree of polarization of the electromagnetic field, the initial phase of the incident field and the initial energy of the electron have arbitrary values. This property leads to a strong simplification of the calculation of the radiation reaction parameters and of their dependence on the initial electron energy and angular frequency of the laser beam. Our analysis is performed in the proper inertial system of the electron. The radiation reaction is significant for laser beam intensities of the order 1022 W/cm2, and for electron energy greater than 1 GeV. The calculations reveal limitations of the method of generating hard radiations by interactions between laser beams and relativistic electron beams.

scholarly journals Longitudinal and transverse cooling of relativistic electron beams in intense laser pulses

2015 ◽  
Vol 17 (5) ◽  
pp. 053025 ◽  
Author(s):  
Samuel R Yoffe ◽  
Yevgen Kravets ◽  
Adam Noble ◽  
Dino A Jaroszynski
Keyword(s):  
Relativistic Electron ◽  
Electron Beams ◽  
Laser Pulses ◽  
Intense Laser ◽  
Relativistic Electron Beams ◽  
Intense Laser Pulses

Focusing of an Intense Relativistic Electron Beam by a Hollow Conical Laser Beam

1975 ◽  
Vol 30 (8) ◽  
pp. 976-980
Author(s):  
F. Winterberg
Keyword(s):  
Laser Beam ◽  
Relativistic Electron ◽  
Radiation Pressure ◽  
Relativistic Electron Beam ◽  
Laser Light ◽  
Electron Beams ◽  
The Self ◽  
Intense Laser ◽  
Power Laser ◽  
Self Focusing

Abstract Estimates suggest that the nonlinear transverse radiation pressure produced within a plasma by a convergent annular high power laser beam may lead to the focusing of an intense relativistic electron down to a radius of ~10-4 cm. The transverse radiation pressure results from the dielectric property of a plasma in conjunction with the phenomena of the self-focusing of intense laser light. The tightly focused electron beams would make possible the release of thermonuclear energy by micro-explosions.

scholarly journals Polarization effects in collisions between very intense laser beams and relativistic electrons

2012 ◽  
Vol 30 (4) ◽  
pp. 591-603 ◽  
Author(s):  
Alexandru Popa
Keyword(s):  
Electron Beams ◽  
Intense Laser ◽  
Laser Beams ◽  
Relativistic Electrons ◽  
X Rays ◽  
Relativistic Electron Beams ◽  
Linearly Polarized ◽  
Promising Source ◽  
Good Agreement ◽  
Scattered Beam

AbstractThe interaction between laser and relativistic electron beams is a promising source of very energetic X rays. We present an accurate model for the collisions between very intense linearly polarized laser beams, corresponding to relativistic parameters of the order of unity or greater, and electrons having energies up to 100 MeV. Our approach uses only one approximation, namely it neglects the radiative corrections. We consider the two cases in which the laser field polarization is either perpendicular or parallel to the plane defined by the directions of propagation of the laser beam and electron beam, and calculate accurately the properties of the σ and π polarized scattered beams. The angle between the directions of the laser and electron beams, denoted by θL, is allowed to have arbitrary values, so that the widely analyzed 180° and 90° geometries, in which the two beams collide, respectively, head on and perpendicularly, are particular cases. We prove that the polarization properties of the scattered beam depend on the angle θL. By varying this angle, the polarization of the scattered beam can be varied between the two limit configurations in which the electromagnetic field of the scattered beam is σ or π polarized with respect to the scattering plane. Our theoretical results are in good agreement with experimental results published in literature. Our model shows that current technologies can be used to produce hard harmonics of the scattered radiations. These harmonics can have relatively high intensities comparable to the intensities of the first harmonics, and energies higher than 1 MeV. Our results lead to the possibility to realize an adjustable photon source with both the energy and polarization of the scattered radiations accurately controlled by the value of the θL angle.

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