THE TENDL NEUTRON DATA LIBRARY AND THE TEND1038 38-GROUP NEUTRON CONSTANT SYSTEM

Authors & Affiliations

Abramovich S.N., Gorelov V.P., Gorshikhin A.A., Grebennikov A.N., Il'in V.I., Krut'ko N.A., Farafontov G.G.
Russian Federal Nuclear Centre - All-Russia Scientific Research Institute for Experimental Physics, Sarov, Russia

Abstract

The library contains neutron data for 103 nuclei - i.e. for 38 actinide nuclei (from 232Th to 249Cm), 26 fission fragment nuclei and 39 nuclei in structural and technological materials. The 38-group constants were obtained from TENDL. The high-energy group boundary is 20 MeV. The energy range below 1.2 eV contains 11 groups. Temperature and resonance effects were taken into account. The delayed neutron parameters for 6 groups and the yields of 40 fission fragments were obtained (light and heavy, stable and non-stable). The fast neutron features of spherical critical assemblies were calculated using constants from TEND 1038.

Keywords
neutron data library, TENDL, group constants, spherical critical assemblies, fast neutron

Article Text (PDF, Translated by IAEA)

References

UDC 539.17.013

Problems of Atomic Science and Technology. Series: Nuclear Constants", issue 1, 2001