High-density implosion via suppression of Rayleigh_Taylor instability

9th International Conference on Inertial Fusion Sciences and Applications

Shiroto, Takashi^1 ; Ohnishi, Naofumi^1 ; Sunahara, Atsushi^2 ; Fujioka, Shinsuke^3 ; Sasaki, Akira^4

Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Miyagi, Sendai

980-8579, Japan^1

Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka

565-0871, Japan^2

Osaka University, 2-6 Yamada-oka, Suita, Osaka

565-0871, Japan^3

Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto

619-0215, Japan^4

关键词: Atomic modeling;    Hydrodynamic instabilities;    Hydrodynamic stability;    Implosion dynamics;    Laser facilities;    Plastic-shells;    Radiation hydrodynamics;    Rayleigh-Taylor instabilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/717/1/012051/pdf
DOI  :  10.1088/1742-6596/717/1/012051

来源: IOP

【 摘 要 】

Radiation hydrodynamic simulations of ICF capsules assuming a kJ-class laser facility were conducted to evaluate the hydrodynamic stability of a brominated plastic shell. An opacity table based on a detailed atomic model was employed so that more quantitative forecast of the implosion dynamics could be performed. A lightly doped shell could form a high-density core at the maximum compression by suppressing the hydrodynamic instability.