High energy bremsstrahlung in an intense laser field
The cross section for bremsstrahlung emission and absorption by electrons in an intense laser field has been calculated in the Born approximation for the electron-ion potential. Typical numerical results are presented as a function of the ratio of the electron guiver energy to its energy and the ratio of the bremsstrahlung energy to the electron energy. The intense field correction factor for the rate of bremsstrahlung emission and absorption for electrons with a Boltzmann distribution of energies has been calculated. Numerical results for the correction factor are presented for the Boltzmann case as a function of the ratio of the electron quiver energy to its thermal energy and the ratio of the bremsstrahlung energy to the thermal energy. For typical laser fusion parameters, this correction factor which is the ratio of the thermal bremsstrahlung emission rate in the intense laser field to the rate at zero field can be quite significant. For a laser of wavelength 1.06 ..mu..m at an intensity of 3 x 10/sup 15/ w/cm/sup 2/ and an electron temperature of 1 keV, the correction factor varies from 0.98 at a bremsstrahlung energy of 100 V to greater than 5 at a bremsstrahlung energy of 10 keV.
- Research Organization:
- R and D Associates, Marina del Rey, CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5403772
- Report Number(s):
- UCRL-15200
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ABSORPTION
BOLTZMANN EQUATION
BORN APPROXIMATION
BREMSSTRAHLUNG
CORRECTIONS
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION
ENERGY TRANSFER
EQUATIONS
FERMIONS
LASER RADIATION
LASER-PRODUCED PLASMA
LEPTONS
PLASMA
RADIATIONS