Title :
Radiation effect on pellet implosion in LIB ICF
Author :
Kawata, S. ; Sato, T. ; Teramoto, T. ; Bandoh, E. ; Masubuchi, Y. ; Watanabe, H. ; Takahashi, I.
Author_Institution :
Dept. of Electr. Eng., Nagaoka Univ. of Technol., Nagaoka, Japan
Abstract :
In this paper the radiation transport effect on pellet implosion is studied in a Light-Ion-Beam(LIB) inertial Confinement Fusion(ICF) by numerical simulation and analyses. First we present the nonuniformity-smoothing effect of the radiation transport on an implosion symmetry of the LIB-ICF fuel pellet. Then the radiation effect on the Rayleigh-Taylor instability is studied. The numerical studies present the following results: The 2-dimensional implosion simulation shows that the initial nonuniformity can be smoothed out well in a LIB ICF pellet in which the electron temperature is low, for example several hundreds eV, compared with that in a Laser fusion; For example the initial nonuniformity of 6% is smoothed down to 0.07% during the implosion phase. In addition, the linear analyses for the Rayleigh-Taylor instability shows the damping effect of the radiation transport.
Keywords :
Rayleigh-Taylor instability; explosions; fusion reactors; plasma inertial confinement; proton effects; LIB ICF; Rayleigh-Taylor instability; damping effect; implosion symmetry; light ion beam inertial confinement fusion; nonuniformity smoothing effect; pellet implosion; radiation effect; radiation transport effect; Equations; Fuels; Lead; Mathematical model; Particle beams; Radiation effects; Smoothing methods;
Conference_Titel :
High-Power Particle Beams, 1990 8th International Conference on
Conference_Location :
Novosibirsk
Print_ISBN :
9.7898102055e+012
