Neutron Cross section Covariances in the Resonance region [electronic resource] : 50,53Cr, 54,57Fe and 60Ni

• Ngôn ngữ: eng
• Ký hiệu phân loại: 539.7 Atomic and nuclear physics
• Thông tin xuất bản: Upton, N.Y. : Oak Ridge, Tenn. : Brookhaven National Laboratory ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010
• Mô tả vật lý: Medium: ED : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 262388
• Chủ đề: 1. 73 nuclear physics and radiation physics; 2. Approximations; 3. Chromium 50; 4. Chromium 53; 5. Cross sections; 6. Data covariances; 7. Elastic scattering; 8. Et al; 9. Iron 54; 10. Iron 57; 11. Kernels

Tóm tắt

We evaluated covariances in the neutron resonance region for capture and elastic scattering cross sections on minor structural materials, {sup 50,53}Cr, {sup 54,57}Fe and {sup 60}Ni. Use was made of the recently developed covariance formalism based on kernel approximation along with data in the Atlas of Neutron Resonances. Our results of most interest for advanced fuel cycle applications, elastic scattering cross section uncertainties at energies around 100 keV, are on the level of about 7-10%.