抄録
In the field of the reactor computational physics, the burnup equation is established according to the burnup chain, and the solution of burnup equation is the core of the burnup calculation. A point-depletion code for PWR is developed based on Chebyshev Rational Approximation Method (CRAM). There are two burnup libraries applied in this code: the 1487-isotopes library used for the coupling with Monte Carlo code and the simplified library used for the coupling with deterministic transport code. A series of benchmark problems are performed for the verification of the point-depletion code. Numerical results show that this code can obtain high accuracy in the burnup calculation compared with the reference results.