Theoretical and experimental studies of radiative and gas dynamic properties of substances at high energy density in matter

Mathematical modelling of radiative and gas-dynamic processes in substances at high energy density is carried out for experiments, where both laser and heavy ion beams are used. Important features of the theoretical model, known as the ion model (IM), which is used for quantum mechanical calculation...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2015-11, Vol.653 (1), p.12021
Main Authors: Orlov, N Yu, Denisov, O B, Vergunova, G A, Rosmej, O N
Format: Article
Language:English
Subjects:
Admixtures
Experiments
Exploding wires
Flux density
Gold
Heavy ions
Ion beams
Physics
Plasma
Plasma temperature
Quantum mechanics
Radiation
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mathematical modelling of radiative and gas-dynamic processes in substances at high energy density is carried out for experiments, where both laser and heavy ion beams are used. Important features of the theoretical model, known as the ion model (IM), which is used for quantum mechanical calculations of radiative opacity, are discussed. Reliability of (IM) results is tested with experiment, where measurements of x-pinch radiation energy yield for two exploding wire materials, NiCr and Alloy 188 were made. Theoretical estimations of radiative efficiency are compared with experimental results, and (IM) calculations agree well with the experimental data. Subsequently, the theoretical approach was used for temperature diagnostics of CHO plasma target in combined laser-heavy ion beam experiments. Joint radiative and gas-dynamic calculations are performed for comparison with experiment, where hohlraum radiation transmits through the CHO plasma target, and the share of absorbed radiation energy is compared with experiment. Study of radiative properties of CHO plasma with little admixture of gold is carried out as well. Specific dependence of the Rosseland mean on plasma temperature is discussed for gold plasma.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/653/1/012021