,Non-equilibrium ignition criterion for magnetized deuterium–tritium fuel

• 作 者: E. Ghorbanpour A. Ghasemizad S. Khoshbinfar
• 机 构: Department of Physics, Faculty of Science, University of Guilan, P.O. Box 41335-1914, Rasht, Iran
• 出 处: 核技术（英文版）
• 发表日期: 2019年4期
• 关键词: Magnetized plasma Two-temperature model Ion–electron non-equilibrium Axial magne

In this paper, non-equilibrium ignition condi-tions for magnetized cylindrical deuterium–tritium plasma in the presence of an axial magnetic field have been investigated. It is expected that temperature imbalance between ions and electrons as well as the axial magnetic field will relax the threshold of ignition conditions. Therefore, ignition conditions for this model are derived numerically involving the energy balance equation at the stagnation point. It has been derived using parametric space including electron and ion temperature (Te, Ti), areal den-sity (ρR), and seed magnetic field-dependent free param-eters of B/ρ, mB, and BR. For B/ρ 0.25 g cm-2, and ρR > 0.02 g cm-2, respectively. The practical equilibrium conditions also addressed which is in good agreement with the corre-sponding one-temperature magnetized mode proposed in previous studies. Moreover, it has been shown that the typical criterion of BR ≥ (6.13–4.64) × 105 G cm would be expectable. It is also confirmed that the minimum pro-duct of areal density times fuel temperature in equilibrium model is located in the range of T = 6–8 keV for all these free parameters, depending on the magnitude of the mag-netic field. This is the entry point for the non-equilibrium model consistent with equilibrium model.