Measurements of laser plasma coronal conditions and thermal transport with time-resolved x-ray spectroscopy

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.39.6090· OSTI ID:6386422

Willi, O; Tabatabaei, S D; Riley, D; Hauer, A; Delamater, N; Chenais-Popovics, C; Apte, P; Cole, A

This paper presents a detailed characterization of the plasma conditions near the critical density of a laser-produced plasma. Solid spherical plastic targets with small aluminum tracer dots buried below overcoated plastic layers have been uniformly illuminated with green laser light at irradiances of 10/sup 14/--10/sup 15/ W/cm/sup /minus/2/. Time-resolved temperature and density profiles were obtained by using x-ray emission spectroscopy. Detailed comparisons with hydrodynamic simulations show that the thermal transport is well characterized by a flux limit of 0.1.

• Research Organization: The Blackett Laboratory, Imperial College of Science and Technology, London, SW7 2BZ, United Kingdom(GB); Los Alamos National Laboratory, Los Alamos, New Mexico 87545; Centre de Physique Theorique, Ecole Polytechnique, 91128 Palaiseau CEDEX, France; Rutherford Appleton Laboratory, United Kingdom Science Research Council, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
• OSTI ID: 6386422
• Journal Information: Phys. Rev. A; (United States), Vol. 39:11
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
THERMAL CONDUCTIVITY
ALUMINIUM
FLUX DENSITY
NEODYMIUM LASERS
PLASMA DENSITY
TIME RESOLUTION
VISIBLE RADIATION
X-RAY SPECTRA
ELECTROMAGNETIC RADIATION
ELEMENTS
LASERS
METALS
PHYSICAL PROPERTIES
PLASMA
RADIATIONS
RESOLUTION
SOLID STATE LASERS
SPECTRA
THERMODYNAMIC PROPERTIES
TIMING PROPERTIES
700102* - Fusion Energy- Plasma Research- Diagnostics