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Nuclear data needs for studies of accelerator induced neutron transmutation of nuclear waste

Conference ·
OSTI ID:10107304
;
Recent activities in accelerator-driven neutron transmutation problems have required the further development of both codes and data. In our treatment of transmutation in these medium-energy accelerator problems, the reactions of the incident beam and secondary particles are modeled with the LAHET Monte-Carlo program using online nuclear cross-section models. The position, direction and energy of neutrons born or slowing below 20 MeV are recorded for subsequent MCNP Monte-Carlo calculations with evaluated cross-section libraries. Transmutation calculations with CINDER`90 use high-energy fission and spallation product-nuclide formation rates and target-nuclide destruction rates from LAHET and the MCNP flux below 20 MeV to obtain temporal inventories of nuclides in the accelerator or target materials. These problems are characterized by the production and decay of spallation products scattered over the familiar chart of the nuclides below the compound system, plus the more familiar neutron activation of common metals and alloys. The former heavily taxes the breadth of available decay data, while the later demands precision in cross-section data common to many less-demanding neutron activation problems.
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
10107304
Report Number(s):
LA-UR--92-3761; CONF-9205198--4; ON: DE93003829
Country of Publication:
United States
Language:
English

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Related Subjects

052001
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
663430
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
CROSS SECTIONS
MONTE CARLO METHOD
NEUTRON REACTIONS
NUCLEAR DATA COLLECTIONS
NUCLEON-INDUCED REACTIONS AND SCATTERING
RADIOACTIVE WASTES
TRANSMUTATION
WASTE PROCESSING