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Title: Argon X-ray line imaging - A compression diagnostic for inertial confinement fusion targets

The paper describes argon X-ray line imaging which measures the compressed fuel volume directly by forming one-dimensional images of X-rays from argon gas seeded into the D-T fuel. The photon energies of the X-rays are recorded on the film of a diffraction-crystal spectrograph. Neutron activation, which detects activated nuclei produced by the interaction of 14-MeV neutrons with the selected materials of the target, allows to calculate the final compressed fuel density using a hydrodynamics simulation code and the knowledge of the total number of activated nuclei and the neutron yield. Argon X-ray appears to be a valid fuel-compression diagnostic for final fuel densities in the range of 10 to 50 times liquid D-T density.
Authors:
Publication Date:
OSTI Identifier:
5258824
Resource Type:
Journal Article
Resource Relation:
Journal Name: Energy Technol. Rev.; (United States)
Research Org:
California, University, Livermore, Calif.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA DIAGNOSTICS; ACTIVATION ANALYSIS; ARGON; COMPRESSION; DEUTERIUM; HYDROGEN FUELS; ION TEMPERATURE; LASER TARGETS; NEUTRON REACTIONS; PLASMA DENSITY; PULSES; SHIVA FACILITY; THERMONUCLEAR REACTORS; X RADIATION; BARYON REACTIONS; CHEMICAL ANALYSIS; ELECTROMAGNETIC RADIATION; ELEMENTS; FLUIDS; FUELS; GASES; HADRON REACTIONS; HYDROGEN ISOTOPES; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; NONMETALS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-ODD NUCLEI; RADIATIONS; RARE GASES; STABLE ISOTOPES; SYNTHETIC FUELS; TARGETS 700102* -- Fusion Energy-- Plasma Research-- Diagnostics