skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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

Abstract

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.

Authors:
; ;
Publication Date:
Research Org.:
Fusion Technology Laboratory, University of Illinois, Urbana, Illinois 61801
OSTI Identifier:
5181436
Resource Type:
Journal Article
Journal Name:
J. Vac. Sci. Technol., A; (United States)
Additional Journal Information:
Journal Volume: 6:3
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 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

Citation Formats

Varadarajan, V, Kim, K, and Bernat, T P. 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. United States: N. p., 1988. Web. doi:10.1116/1.575232.
Varadarajan, V, Kim, K, & Bernat, T P. 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. United States. https://doi.org/10.1116/1.575232
Varadarajan, V, Kim, K, and Bernat, T P. Sun . "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". United States. https://doi.org/10.1116/1.575232.
@article{osti_5181436,
title = {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},
author = {Varadarajan, V and Kim, K and Bernat, T P},
abstractNote = {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.},
doi = {10.1116/1.575232},
url = {https://www.osti.gov/biblio/5181436}, journal = {J. Vac. Sci. Technol., A; (United States)},
number = ,
volume = 6:3,
place = {United States},
year = {1988},
month = {5}
}