Damghan University Press Iranian Journal of Astronomy and Astrophysics 2322-4924 12 4 2026 07 15 The Effect of Temperature Anisotropy on Ignition Conditions of Advanced Fuel Degenerate Plasma in the Presence of a Magnetic Field in Nuclear Fusion Configurations 335 346 2135 10.22128/ijaa.2026.3311.1247 EN Majid Bakhtiyari Department of Physics, Faculty of Basic Sciences, University of Mazandaran, P.O. Box 47415-416, Babolsar, Iran Mohammad Mahdavi Department of Physics, Faculty of Basic Sciences, University of Mazandaran, P.O. Box 47415-416, Babolsar, Iran Fatemeh Khodadadi Azadboni Department of Physics Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran Journal Article 2026 05 04 The investigation of the impact of effective parameters on optimizing fuel pellet ignition conditions in nuclear fusion is one of the important topics in nuclear power generation cycles. ICF and MIF are two advanced methods for nuclear power generation. This paper investigates the influence of temperature anisotropy and external magnetic fields on the ignition conditions of advanced Deuterium-Helium-3 $(D-^3He)$ fuel pellets within degenerate plasma, specifically under Inertial Confinement Fusion (ICF) and Magneto-Inertial Fusion (MIF) regimes. Since the degeneration condition is fulfilled at low temperatures and high densities, it is expected that better ignition will be achieved by reducing the electron temperature. Calculations show that applying an external magnetic field to the $(D-^3He)$ fuel pellet plasma increases the surface density by a factor of five in the magnetized inertial fusion (MIF) state compared to the inertial confinement fusion (ICF) state, while maintaining the stability of the plasma degenerate conditions. This increase in the surface density of the fuel leads to an increase in the energy deposition of alpha particles into the plasma environment of the fuel pellet. In addition, it has been shown that by applying temperature anisotropy to the fuel pellet, the plasma electron temperature in the MIF mode is reduced by $ 70\% $, surpassing the reduction observed in ICF mode. The reduction in the electron temperature of the plasma environment, decreases the dissipated bremsstrahlung power, while simultaneously increasing the plasma temperature of the fuel pellet thereby facilitating more effective ignition of the $(D-^3He)$ fuel pellet. https://ijaa.du.ac.ir/article_2135_d17c1a35cf9de604a9645219e3e7c816.pdf