X-ray spectroscopic measurements of high densities and temperatures from indirectly driven inertial confinement fusion capsules

Time-resolved X-ray spectroscopy is used to study the implosion of indirectly driven inertial confinement fusion capsules on the Nova laser. Through the use of Ar dopant in the fuel, measurements of the peak temperature, from emission line ratios, and density, from line broadening, are obtained. The...

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Bibliographic Details
Published in:Physical review letters 1993-03, Vol.70 (9), p.1263-1266
Main Authors: HAMMEL, B. A, KEANE, C. J, CABLE, M. D, KANIA, D. R, KILKENNY, J. D, LEE, R. W, PASHA, R
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320 - Plasma Diagnostic Techniques & Instrumentation- (1992-)
700411 - Inertial Confinement Devices- (1992-)
ARGON
CONFINEMENT
DATA
ELECTRON TEMPERATURE
ELEMENTS
Exact sciences and technology
EXPERIMENTAL DATA
FLUIDS
FUELS
GASES
HELIUM
IMPLOSIONS
INERTIAL CONFINEMENT
INFORMATION
LASER IMPLOSIONS
LASER-PRODUCED PLASMA
NONMETALS
NUMERICAL DATA
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA DIAGNOSTICS
Plasma production and heating
RARE GASES
RESOLUTION
SPECTRA
STARK EFFECT
STARS
TIME RESOLUTION
TIMING PROPERTIES
X-RAY SPECTRA
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Summary:Time-resolved X-ray spectroscopy is used to study the implosion of indirectly driven inertial confinement fusion capsules on the Nova laser. Through the use of Ar dopant in the fuel, measurements of the peak temperature, from emission line ratios, and density, from line broadening, are obtained. These measurements indicate peak electron temperatures of about 1 - 1.6 keV and electron and deuteron densities in the range of (1.0 - 2.0) x 10 exp 24/cu cm, depending on the type of laser drive used. These ion densities, which approach those of stellar interiors, are the highest inferred by direct analysis of Stark-broadened line profiles. (Author)
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.70.1263