The kilo-tesla-class converging magnetic field effects on the core heating properties and the energy and duration of relativistic electron beam (REB) required for ignition in fast ignition laser fusion has been evaluated by parametric 2D hybrid simulations where a uniformly compressed DT core with ρ = 300 g/cm³ is heated by REB with T_REB = 3 MeV, I_REB = 0.69 × 10²⁰ W/cm² and θ_REB = 40° under sufficiently strong magnetic field (B_ext = 3 kT at the REB injection position). The kilo-tesla-class converging magnetic field can intensify REB and then enhances the core heating power drastically. As the results, the fusion ignition can be initiated by the REB with E_REB ≧ 50 kJ and τ_REB = 10 ~ 30 ps. With increasing mirror ratio R_M, the negative effect of converging field, i.e., mirror reflection, becomes significant, which enhances the REB energy required for ignition (E_REB,ig = 49 kJ for R_M = 3 → E_REB,ig =77 kJ for R_M = 20).

千特斯拉级会聚磁场对铁心加热特性以及快速点火激光聚变中点火所需的相对论电子束（REB）的能量和持续时间的影响已通过参数二维混合仿真进行了评估，其中均匀压缩的DT铁芯具有ρ  = 300克/厘米³是由与REB加热Ť _REB  = 3兆电子伏，我_REB  = 0.69×10 ²⁰  W /厘米²和θ _REB  = 40°下足够强的磁场（乙_分机 =在REB注入位置为3 kT）。千特斯拉级会聚磁场可以增强REB，然后显着提高堆芯的加热功率。作为结果，融合点火可以通过与REB发起Ë _REB ≧50千焦和τ _REB  = 10〜30皮秒。随着镜面比率R _M的增加，会聚场的负面影响（即镜面反射）变得很明显，从而增强了点火所需的REB能量（ 对于R _M  = 3→  E _REB，ig = 77 _，E _REB，ig = 49 kJ R _M  = 20时的kJ ）。