Analysis of the thermally induced formation of a uniform liquid layer of ternary deuterium--tritium mixture inside a cryogenic spherical shell inertial confinement fusion target
The values of the externally applied thermal gradients that give rise to uniform liquid layers of a ternary deuterium--tritium mixture inside a cryogenic spherical shell inertial confinement fusion target are calculated using a model recently developed by the authors. It is shown that the surface tension gradients induced by the component separation at the liquid--vapor interface pull the liquid upward, thus counteracting the gravity-induced fuel sagging and forming dynamically stable uniform liquid layers. The governing equations are the equations of continuity, momentum, energy, and mass diffusion--convection, which are solved using finite-difference methods. The solutions indicate that one needs fairly large positive thermal gradients, obtained by keeping the top of the target warmer than the bottom, in order to create uniform liquid layers on the inner surface of the target.
- Research Organization:
- Fusion Technology Laboratory, University of Illinois, Urbana, Illinois 61801
- OSTI ID:
- 5181436
- Journal Information:
- J. Vac. Sci. Technol., A; (United States), Vol. 6:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DEUTERIUM
SURFACE TENSION
TEMPERATURE GRADIENTS
LASER TARGETS
FABRICATION
LIQUIDS
TRITIUM
INERTIAL CONFINEMENT
INTERFACES
LAYERS
MATHEMATICAL MODELS
SYNTHESIS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CONFINEMENT
FLUIDS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PLASMA CONFINEMENT
RADIOISOTOPES
STABLE ISOTOPES
SURFACE PROPERTIES
TARGETS
YEARS LIVING RADIOISOTOPES
700208* - Fusion Power Plant Technology- Inertial Confinement Technology
700205 - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems