Progress in applyiong the FKK multistep reaction theory to intermediate-energy data evaluation

Conference · Fri Jul 01 00:00:00 EDT 1994

OSTI ID:10162804

Chadwick, M B ^[1]; Young, P G ^[2]

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1. Lawrence Livermore National Lab., CA (United States)
2. Los Alamos National Lab., NM (United States)

Recent developments to the physics modeling in the FKK-GNASH code system are reviewed. We describe modifications to include a linking of multistep direct and multistep compound processes, which are important when the incident energy is less than about 30 MeV. A model for multiple preequilibrium emission is given, and compared with experimental measurements of proton reactions on {sup 90}Zr at 160 MeV. We also give some preliminary observations concerning FKK calculations which use both normal and non-normal DWBA matrix elements. We describe the application of the FKK-GNASH code to a range of nuclear data applications, including intermediate energy reactions of importance in the accelerator transmutation of waste, and fast neutron and proton cancer radiation treatment. We outline areas where further work is needed for the accurate modeling of nuclear reactions using the FKK theory.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36; W-7405-ENG-48
• OSTI ID: 10162804
• Report Number(s): LA-UR-94-1907; UCRL-JC-117460; CONF-9405188-1; ON: DE94014458; TRN: 94:014589
• Resource Relation: Conference: Organization for Economic Co-Operation and Development conference meeting on intermediate energy nuclear data,Issy-les-Moulineaux (France),30 May - 1 Jun 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
PRECOMPOUND-NUCLEUS EMISSION
F CODES
ZIRCONIUM 90 TARGET
PROTON REACTIONS
DWBA
NUCLEAR DATA COLLECTIONS
CARBON 12 TARGET
NEUTRON REACTIONS
663430
990200
663560
NUCLEON-INDUCED REACTIONS AND SCATTERING
MATHEMATICS AND COMPUTERS
A = 90-149