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Magnetic Field Generation in High-Intensity-Laser{endash}Matter Interactions

Journal Article · · Physical Review Letters
 [1];  [2]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
A multifluid implicit plasma simulation code has been used to study the transport of hot electrons generated by an intense ({ge}3{times}10{sup 1 8} W/cm {sup 2}) short-pulse 1.06{mu}m laser into plasma targets over a broad range of densities [(0.35-200)n{sub crit}], as arising in the Fast Ignitor approach to inertial confinement fusion. The most intense (16-250MG) magnetic fields generated in this interaction are traced to the ponderomotive push on background electrons, and tardy electron shielding. These fields can focus the heated electrons toward the axis of the beam, while impeding the direct return flow of background electrons. {copyright} {ital 1998} {ital The American Physical Society}
OSTI ID:
573889
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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