Impact of local field correction on dynamic characteristics of dense plasma

2024

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DOI 10.1109/icops58192.2024.10625813
Data confidence 70 medium
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Abstract

Studying dense plasma holds significant importance in both inertial confinement fusion (ICF) and astrophysics [1]. Dynamic characteristics serve as crucial parameters to elucidate the interaction between particle beams and matter. Particularly in particle-driven inertial confinement fusion, understanding the interaction of highly charged ions with dense plasmas is pivotal [2]. Precise knowledge of plasma ion dynamics, such as relaxation time and stopping power within ICF, is essential for accurately designing thermonuclear targets. These plasma properties can be accurately computed by considering local field corrections derived from quantum Monte Carlo simulations [3]. The local field function, denoted as $\mathrm{G}(\mathrm{x})$, encompasses exchange-correlation effects across various densities and temperatures [4]. The local field factor quantifies the impact of particle interactions on the exchange and correlation properties of a homogeneous electron gas system, and it correlates with the exchange-correlation factor [5]. Through the local field correction method, we have calculated Coulomb logarithm, relaxation times, and stopping powers. To validate the model’s accuracy, we compare its results with theoretical findings from other researchers.