Accession Number:

ADA083913

Title:

Accurate Analytic Approximations and Numerical Solutions for the Structure of Quasi-Static Laser Driven Ablation Layers.

Descriptive Note:

Memorandum rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1980-02-29

Pagination or Media Count:

22.0

Abstract:

Time dependent simulations of a laser driven accelerating shell ad ablation layer have shown the presence of long lived quasi-static density and pressure profiles. This paper models the equilibrium solutions for a laser ablation layer both analytically and numerically and develops a detailed understanding of the nature of this flow. Such a model enables the calculation of the quantitative dependence of the shell thickness and acceleration, the peak density, velocity, and temperature of the shell, the width of the Rayleigh-Taylor region, and the distance to the critical surface on the total plasma mass, the critical density, and the absorbed and reflected laser flow. Author

Subject Categories:

  • Lasers and Masers
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE