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.
- Publication Date:
- OSTI Identifier:
- Resource Type:
- Journal Article
- Resource Relation:
- Journal Name: Energy Technol. Rev.; (United States)
- Research Org:
- California, University, Livermore, Calif.
- Country of Publication:
- United States
- 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