TRIDENT colliding plasma experiments and modeling

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:42963

Wilke, M; Jones, M E; Obst, A W ^[1]

---

1. and others

The TRIDENT laser facility at Los Alamos is being used to study the interaction of plasmas produced from dual beam interactions with planar foils. The energetic plasmas produced in this way span the parameter regime from interpenetrating to collisional stagnation. Stagnation is accompanied by copious production of x-rays. In addition, the ions are energetic enough to produce nuclear reactions. The authors describe experiments with gold foils and with deuterated polyethylene irradiated by {approximately}100J, 0.5 and 1.0 nsec 2{omega} Nd-glass laser beams. Instrumentation consisted of time-integrated and gated x-ray imagers, time-integrated x-ray spectrographs, x-ray diodes, neutron detectors, an ion spectrometer and a faraday cup, a Thomson scattering spectrometer with probe beam and a holographic interferometer. They have obtained multi-frame 100 ps x-ray images of the collision. In addition they have measured > 10{sup 6} neutrons from CD coated foil collisions. Scattered Au ions with > 100 keV energies have been detected. Inter comparisons of the data with Lasnex and ISIS, a particle-in-cell code with massless fluid electrons and inter particle (classical) collisions, are underway. They will describe the current status of the experiments, results and modeling effort.

• OSTI ID: 42963
• Report Number(s): CONF-940604--; ISBN 0-7803-2006-9
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
INTERACTIONS
LASER-PRODUCED PLASMA
NEODYMIUM LASERS
PLASMA DIAGNOSTICS
PLASMA PRODUCTION
X RADIATION