Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Physics of Plasmas
5 (1998), S. 4366-4372
ISSN:
1089-7674
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The interaction of ultra-short intense laser with a thin foil has been studied by one- and two-dimensional particle simulations, which include the collisional absorption and the hard x-ray bremsstrahlung processes. The bremsstrahlung processes are modeled in a fully relativistic way in the frame work of quantum electrodynamics and integrated by the Monte Carlo method in particle-in-cell code. For carbon thin foils in which electron density is 200 times critical density, a laser pulse with an intensity greater than 1018 W/cm2 irradiates the foil normally to accelerate electrons on the surface along the laser propagation direction by the oscillating ponderomotive force. As a result, hard x rays over the range of 100 keV are emitted strongly toward the laser direction. The spectrum of the photon energy and scaling of the hard x-ray emission with respect to the various laser intensity are investigated by the newly developed simulation code. © 1998 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.873173
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