Power Balance of the Quasi-Stationary Stagnation Phase of Superdense Boron-Proton Plasma

Abstract

The features of high-gain aneutronic p–¹¹B fusion are examined. A comparison of inertial systems with extremely high plasma densities (n ~ 10³⁰–10³¹ m^–3) and stationary systems with magnetic confinement of low-density plasma (n ~ 10²⁰–10²² m^–3) shows that it is also necessary to analyze combined schemes based on magneto-inertial systems with fuel refill. Present work considers limiting modes of the quasi-stationary phase of fusion, which show the maximum plasma gain at plasma density n ~ 10³¹ m^–3 and ion temperatures T_i ~ 200 keV, electron temperatures T_e ~ 100 keV at the beginning of the quasi-stationary phase. The content of reaction products (α-particles) has a significant influence on the parameters of the system. If the confinement time of α-particles is the same as for the fuel components, then due to radiation the energy gain Q ~ 1. In modes with a reduced confinement time of α-particles, the gain reaches a value of Q ~ 6. A further increase in Q requires extremely high plasma energy.