The 239 Pu(n,2n) 238 Pu Cross Section: Preliminary Calculations
Abstract
The primary motivation for the present work is to provide theoretical values for the ratio of the partial 239Pu(n,2nxy)238Pu to total 239Pu(n,2n)238Pu cross section for several discrete gamma transitions. Results and conclusions of preliminary calculations from threshold to 20 MeV are presented. Calculations are based on theoretical models with parameters obtained from the literature or from our ad hoc systematics. Optical model cross sections and transmission coefficients were determined using the coupled-channels method. The calculations included a preequilibrium component followed by multiple particle and gamma-ray emissions. Fission competition was included at all stages of de-excitation. Suggestions for further verifications and possible improvements are provided.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 12, 1999
- Accession Number
- ADA362585
Entities
People
- G. Reffo
- Haoze Chen
- M. A. Ross
- R. M. White
Organizations
- Lawrence Livermore National Laboratory