Abstract
The gas filling and retention of inertial confinement fusion (ICF) hohlraum is an important issue in ICF studies. In this study, a theoretical model of gas filling and leaking processes for ICF hohlraum is developed based on the unified flow theory. The effects of the fill tube size and the filling pressure on the gas filling and leaking performance are investigated. The results indicate that an increase in the variation rate of the filling/leaking pressure leads to a larger maximum pressure difference between the inside and outside of the ICF hohlraum during the filling/leaking process. The critical pressure difference of the filling process is nearly equal to that of the leaking process. Increase in fill tube diameter and decrease in its length both lead to a lower probability of the rupture of polymeric films at two ends of the hohlraum, and thus increases the security of the hohlraum. In addition, a departure in cross sectional shape of fill tube from circle to rectangle triggers an increase in pressure difference between the inside and outside of the ICF hohlraum, which raises the risk of polymeric films rupture and decreases the security of the hohlraum structure.
Highlights
Inertial confinement fusion (ICF) [1,2,3] is considered as a promising way to achieve controlled thermonuclear fusion that can provide individuals with high-quality sustainable energy [4,5,6]
The current study provides a deep understanding of the gas filling and leaking processes of the ICF hohlraum
To further insight into the gas flow behaviors in ICF hohlraum, a theoretical model of gas filling and leaking processes of ICF hohlraum are developed in this study
Summary
Inertial confinement fusion (ICF) [1,2,3] is considered as a promising way to achieve controlled thermonuclear fusion that can provide individuals with high-quality sustainable energy [4,5,6]. In order to optimally design the gas fill tube and the hohlraum, the gas flow behaviors as well as the dependences of the geometries of the gas fill tube and the hohlraum on the performance of the gas filling and leaking processes are still waiting to be explored For these reasons, it is extremely important to develop a quantitative analysis and prediction method that considers the gas rarefaction effect, to provide a guideline for the parameters selection and optimization of gas filling and leaking processes in the ICF hohlraum. To provide a guideline for the parameters selection and optimization of gas filling and leaking processes in the ICF hohlraum, it is extremely important to develop a quantitative analysis and prediction method that considers the gas rarefaction effect. The current study provides a deep understanding of the gas filling and leaking processes of the ICF hohlraum
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
