Electron Density Measurements of High Density Plasmas Using Soft X-Ray Laser Interferometry

Journal Article · Mon May 15 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.74.3991· OSTI ID:55283

Da Silva, L B; Barbee, Jr, T W; Cauble, R; Celliers, P; Ciarlo, D; Libby, S; London, R A; Matthews, D; Mrowka, S; Moreno, J C; Ress, D; Trebes, J E; Wan, A S; Weber, F ^[1]

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

We have developed and used for the first time a soft x-ray interferometer to probe a large laser-produced plasma with micron spatial resolutions. A neonlike yttrium x-ray laser operating at 155 A was combined with a multilayer coated Mach-Zehnder interferometer to obtain electron density profiles in a plasma produced by laser irradiation of a CH target. The measured electron density profile has been compared to hydrodynamic simulations and shows good agreement near the ablation surface but some discrepancy exists at lower densities.

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 55283
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON DENSITY
INTERFEROMETRY
IRRADIATION
MACH-ZEHNDER INTERFEROMETER
PLASMA
X-RAY LASERS