Numerical Simulation on Measurement of Optical and Thermal Properties for Warm Dense Matter Generated by Isochoric Heating with Pulsed Power Discharge Device

8th International Conference on Inertial Fusion Sciences and Applications

Kikuchi, Takashi^1 ; Hayashi, Ryota^1 ; Takahashi, Takuya^1 ; Tamura, Fumihiro^1 ; Takahashi, Kazumasa^1 ; Sasaki, Toru^1 ; Aso, Tsukasa^1 ; Harada, Nob.^1

Nagaoka University of Technology, Japan^1

关键词: Experimental conditions;    Hollow capillaries;    Implosion dynamics;    Isochoric heating;    Optical and thermal properties;    Pulsed power discharge;    Radiation energy;    Warm dense matters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012047/pdf
DOI  :  10.1088/1742-6596/688/1/012047

来源: IOP

【 摘 要 】

Property data in warm dense matter (WDM) are important to optimize implosion dynamics in a fuel pellet of inertial confinement fusion (ICF). A table-top pulsed power discharge device with isochoric heating using a sapphire hollow capillary was proposed, and was used to generate the extreme state of matter with a well-defined condition. We investigated numerically to generate the WDM by using the pulsed power discharge device. The numerical model was developed by time-dependent one-dimensional thermal diffusion with radiative transfer of multi-group approximation, and the numerical simulation was carried out according with the experimental condition. The achieved temperature of the numerical simulation result was confirmed by the previous experimental result. Also, the radiation energy density was shown at each group of the wavelength of emission.