keff (effective multiplication factor)是什么意思

用法例句

Considering the inversion of the source term for neutron transport in such as fission reaction,the numerical solution of the effective multiplication factor related to k-eigenvalue problem is investigated.

对于包括裂变反应在内的中子输运源项反演问题,研究关于源项有效倍增因子的k-特征值问题的求解。