CEPXS

Software · Mon Oct 19 00:00:00 EDT 2015

OSTI ID:1241524

CEPXS is a multigroup-Legendre cross-section generating code. The cross sections produced by CEPXS enable coupled electron-photon transport calculations to be performed with multigroup radiation transport codes, e.g. MITS and SCEPTRE. CEPXS generates multigroup-Legendre cross sections for photons, electrons and positrons over the energy range from 100 MeV to 1.0 keV. The continuous slowing-down approximation is used for those electron interactions that result in small-energy losses. The extended transport correction is applied to the forward-peaked elastic scattering cross section for electrons. A standard multigroup-Legendre treatment is used for the other coupled electron-photon cross sections. CEPXS extracts electron cross-section information from the DATAPAC data set and photon cross-section information from Biggs-Lighthill data. The model that is used for ionization/relaxation in CEPXS is essentially the same as that employed in ITS.

• Short Name / Acronym: CEPXS; 004596MLTPL00
• Version: 00
• Programming Language(s): Medium: X; OS: various
• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE
• Contributing Organization: L. J. Lorence, Jr., J. E. Morel, G. D. Valdez, B. C. Franke, R. P. Kensek, T. W. Laub, W. C. Fan and C. R. Drumm
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1241524
• Country of Origin: United States