Evaluated cross section libraries and kerma factors for neutrons up to 100 MeV on {sup 16}O and {sup 14}N

Technical Report · Sat Jul 01 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/192516· OSTI ID:192516

Chadwick, M B; Young, P G

We present evaluations of the interaction of 20 to 100 MeV neutrons with oxygen and nitrogen nuclei, which follows on from our previous work on carbon. Our aim is to accurately represent integrated cross sections, inclusive emission spectra, and kerma factors, in a data library which can be used in radiation transport calculations. We apply the FKK-GNASH nuclear model code, which includes Hauser-Feshbach, preequilibrium, and direct reaction mechanisms, and use experimental measurements to optimize the calculations. We determine total, elastic, and nonelastic cross sections, angle-energy correlated emission spectra, for light ejectiles with A{<=}4 and gamma-rays, and average energy depositions. Our results for charged-particle emission spectra agree well with the measurements of Subramanian et al.. We compare kerma factors derived from our evaluated cross sections with experimental data, providing an integral benchmarking of our work. The evaluated data libraries are available as electronic files.

• Research Organization: Lawrence Livermore National Lab., CA (United States); Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48; W-7405-ENG-36
• OSTI ID: 192516
• Report Number(s): UCRL-ID--122436; ON: DE96005791
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPILED DATA
CROSS SECTIONS
ENERGY DEPENDENCE
KERMA
NEUTRON REACTIONS
NEUTRON TRANSPORT
NITROGEN 14 TARGET
NUCLEAR DATA COLLECTIONS
OXYGEN 16 TARGET
THEORETICAL DATA