Propagation of charged particles in laser beams with parabolic intensity profiles with application to isotope separation

1979 ◽  
Vol 11 (3) ◽  
pp. 278-281
Author(s):  
A. K. Ghatak ◽  
J. L. Hughes
Keyword(s):  
Isotope Separation ◽  
Charged Particles ◽  
Laser Beams

An analytical investigation of the optical mixing of two laser beams of identical frequencies in a spatially homogeneous collisionless plasma

1976 ◽  
Vol 54 (24) ◽  
pp. 2387-2395
Author(s):  
Orestes Spyrou ◽  
Jochen Meyer
Keyword(s):  
Electric Field Intensity ◽  
Collisionless Plasma ◽  
Charged Particles ◽  
Elliptic Functions ◽  
Particle Dynamics ◽  
Analytical Investigation ◽  
Laser Beams ◽  
Wave Number ◽  
Optical Mixing ◽  
Spatially Homogeneous

Two laser beams of the same frequency and intensity propagating in opposite directions are mixed in a uniform collisionless plasma.A standing longitudinal wave of wave number k0 = 2kL (kL being the wave number of one of the lasers) is excited and traps charged particles. Including trapped particle dynamics and making use of the properties of the Jacobi elliptic functions, an expression for the power P(t) and the energy. ΔU0 absorbed by the plasma electrons is derived. It is found that the power varies sinusoidally with time. Then the energy density ΔU0 is plotted as a function of the variable E10/kL, E10 being the electric field intensity of the lasers, and the validity of the results is discussed.

scholarly journals Kinematical relations at nonlinear laser field: Free electron interactions

1990 ◽  
Vol 8 (3) ◽  
pp. 451-459 ◽  
Author(s):  
F. F. Körmendi
Keyword(s):  
Particle Acceleration ◽  
Charged Particle ◽  
Kinetic Parameters ◽  
Free Electron ◽  
Nonlinear Interaction ◽  
Laser Field ◽  
Frequency Conversion ◽  
Charged Particles ◽  
Laser Beams ◽  
Electron Interactions

Kinematical relations of nonlinear interaction of laser beams with free charged particles are analyzed. General expressions are found for the number of scattered photons as a function of the number of simultaneously absorbed and/or emitted photons and the kinetic parameters of the charged particle-photon system. The results are applied to the processes of particle acceleration by lasers, frequency conversion, solitonic propagation, and others.

scholarly journals Main physical problems of AVLIS technology in producing ytterbium-168 in weighable amounts

1998 ◽  
Vol 16 (4) ◽  
pp. 541-568 ◽  
Author(s):  
S. I. Yakovlenko
Keyword(s):  
Numerical Simulations ◽  
Isotope Separation ◽  
Laser Beams ◽  
Atomic Vapor ◽  
Vapor Laser ◽  
Vapor Flux ◽  
Physical Problems ◽  
Laser Isotope Separation ◽  
Laser Produced Plasma ◽  
First Time

A review of the AVLIS (atomic vapor laser isotope separation) development performed by GPI and LAD Ltd. (Moscow, Russia) during the last 4–5 years is presented. The processes of laser isotope separation of ytterbium (Yb) have been studied analytically, with numerical simulations, and experimentally. The basic attention is given to the following topics: the selectivity of ionization; the laser beams arrangement in a cavity; the forming of a vapor flux; and the extraction of ions from plasma. Installations to produce highly enriched 168Yb in industrial scales were created. The content of 168Yb in the laser-produced plasma reached 90–95%, in the material deposited on the ion collector up to 62%, and in the washing liquid up to 45%. The rate of the enriched Yb production was up to 5–10 mg/h. For the first time a profitable commodity was produced by the AVLIS method.

Infrared multiphoton dissociation in focused laser beams: II. Application to T/D/H isotope separation

1992 ◽  
Vol 33 (6) ◽  
pp. 505-510 ◽  
Author(s):  
S.K. Sarkar ◽  
A.K. Nayak ◽  
V. Parthasarathy ◽  
K.V.S. RamaRao ◽  
J.P. Mittal
Keyword(s):  
Isotope Separation ◽  
Infrared Multiphoton Dissociation ◽  
Laser Beams ◽  
Multiphoton Dissociation ◽  
Focused Laser Beams

The Jovian ring

1984 ◽  
Vol 75 ◽  
pp. 203-209
Author(s):  
Joseph A. Burns
Keyword(s):  
Equatorial Plane ◽  
Charged Particles ◽  
Dynamical Evolution ◽  
Main Band ◽  
Small Grains ◽  
Three Components

ABSTRACTLying in Jupiter's equatorial plane is a diaphanous ring having little substructure within its three components (main band, faint disk, and halo). Micron-sized grains account for much of the visible ring, but particles of centimeter sizes and larger must also be present to absorb charged particles. Since dynamical evolution times and survival life times are quite short (≲102-3yr) for small grains, the Jovian ring is being continually replenished; probably most of the visible ring is generated by micrometeoroids colliding into unseen parent bodies that reside in the main band.

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