聚变—裂变混合堆是运用聚变反应和裂变反应产生能量并同时生产裂变核燃料的堆型。它通过聚变反应与裂变反应的耦合,使聚变产生的高能中子在包层中倍增,经过倍增的大量中子把包层中的~(238)u或~(232)Th转化成裂变材料,把锂同位素转化为氚。裂变材料再用作裂变堆的核燃料,氚用来支持混合堆堆芯所需的氚的消耗。以磁约束Tokamak聚变—裂变混合堆来 Fusion - fission hybrid reactor is the use of fusion and fission reaction to generate energy and production of fissile nuclear fuel at the same time. Through the fusion reaction and the fission reaction, the high energy neutron produced by fusion is doubled in the cladding. The large number of doubled neutrons transform ~ (238) u or ~ (232) Th in the cladding into fissile material, The lithium isotope into tritium. Fissile material is reused as nuclear fuel for fission reactors and tritium is used to support the depletion of tritium required for the core of the mixed reactor. Magnetic confinement Tokamak fusion - fission hybrid reactor