Author:
COWAN T.E.,PERRY M.D.,KEY M.H.,DITMIRE T.R.,HATCHETT S.P.,HENRY E.A.,MOODY J.D.,MORAN M.J.,PENNINGTON D.M.,PHILLIPS T.W.,SANGSTER T.C.,SEFCIK J.A.,SINGH M.S.,SNAVELY R.A.,STOYER M.A.,WILKS S.C.,YOUNG P.E.,TAKAHASHI Y.,DONG B.,FOUNTAIN W.,PARNELL T.,JOHNSON J.,HUNT A.W.,KÜHL T.
Abstract
The Petawatt laser at Lawrence Livermore National
Laboratory (LLNL) has opened a new regime of laser matter
interactions in which the quiver motion of plasma electrons
is fully relativistic with energies extending well above
the threshold for nuclear processes. In addition to ∼few
MeV ponderomotive electrons produced in ultra intense laser-solid
interactions, we have found a high energy component of
electrons extending to ∼100 MeV apparently from relativistic
selffocusing and plasma acceleration in the underdense
preformed plasma. The generation of hard bremsstrahlung,
photonuclear reactions, and preliminary evidence for positron-electron
pair production will be discussed.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Cited by
145 articles.
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