COMPUTATIONAL RESTRICTIONS OF ORIGEN2 CODE IN SOLVING THE NUCLIDE KINETICS PROBLEMS (PREPRINT IBRAE-2019-01)

Preprint IBRAE-2019-01

Mitenkova, E.F., Solovjeva E.V.

This paper presents the ORIGEN2 code features when solving the nuclide kinetics problems using all fission products with independent yields. It is shown the impossibility to obtain the reliable solutions with the guaranteed accuracy for all calculated nuclides by ORIGEN2 code. The calculation results using MZK program to solve stiff ODE systems, based on SADEL solvers library (Bauman Moscow State Technical University), are presented. The MZK program is adapted to solve the nuclide kinetics problems, providing reliable solutions with guaranteed accuracy for all calculated nuclides. 

Bibliographical reference

E.F. Mitenkova, E.V. Solovjeva. Computational restrictions of ORIGEN2 code in solving the nuclide kinetics problems / Preprint IBRAE-2019-01. — Moscow: NSI RAS, 2019. — 31 p. — Bibliogr.: 15 items. 

© Nuclear Safety Institute, 2019