Analysis of First-Harmonic Eigenvalue Separation Experiments on KUCA Coupled-Core
The first-harmonic eigenvalue separation, the difference between the fundamental and the first order eigenvalues of the higher harmonic neutron transport equations, which were measured at the Kyoto University Critical Assembly (KUCA) has been analyzed. A method was proposed to calculate the first order eigenvalue based on the discrete ordinate method. The 3-D effect, energy group effect, mesh size effect, and transport effect were investigated. Among these effects, the transport effect was significant and when it was taken into account, the calculated eigenvalue separation approached the measured value on the KUCA coupled-core.
- Journal of nuclear science and technology
Journal of nuclear science and technology 35(3), 216-225, 1998-03-25
Atomic Energy Society of Japan