Electron density measurement of a colliding plasma using soft-x-ray laser interferometry

Journal Article · Thu May 01 00:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.55.6293· OSTI ID:565329

Wan, A S; Barbee, Jr, T W; Cauble, R; Celliers, P; Da Silva, L B; Moreno, J C; Rambo, P W; Stone, G F; Trebes, J E; Weber, F ^[1]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)

We have used a soft-x-ray laser interferometer to study the collision and subsequent interaction of counterstreaming high-density plasmas. The measured density profiles show the evolution of the colliding plasmas from interpenetration, when the low-density edge of the plasmas first collide, to stagnation at the symmetry plane with density building at the symmetry plane. We compare the measured profiles with density profiles calculated by the radiation hydrodynamic code LASNEX, which predicts plasma stagnation as soon as the plasmas collide, and a particle-in-cell code, which allows for interpenetration, softening the stagnation. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 565329
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 55, Issue 5; Other Information: PBD: May 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
PLASMA DIAGNOSTICS
ELECTRON DENSITY
COLLISIONS
STREAMS
X-RAY LASERS
INTERFEROMETRY