Measurements and calculations of {sup 238}U(n, xn{gamma}) partial {gamma}-ray cross sections.

Technical Report · Tue Jun 17 04:00:00 EDT 2003

OSTI ID:820192

Fotiades, N.; Johns, G. D.; Nelson, R. O.; Chadwick, M. B.; Devlin, M.; Wilburn, W. S.; Young, P. G.; Becker, J. A.; Archer, D. E.; Bernstein, L. A.; Garret, P. E.; McGrath, C. A.; McNabb, D. P.

Absolute partial cross sections for production of 45 discrete gamma rays in the [sup 238]U(n, xn[gamma]) reactions with x [less than or equal to] 4 are reported for incident-neutron energies in the range 1 MeV< E[sub n] < 100 MeV. A germanium-detector array (GEANIE) for gamma-ray detection and the "white"-neutron source at LANSCE/WNR were used for the measurement. The energy of the incident neutrons was determined using the time-of-flight technique. The data are compared with previous measurements and with theoretical predictions up to E[sub n] = 30 MeV from the GNASH reaction model. The combination of experimental results with theoretical calculations provides a means to deduce the [sup 238]U(n, n’) reaction cross section.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 820192
• Report Number(s): LA-UR-03-3989
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS