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Integral tests of neutron activation cross sections in a /sup 9/Be(d,n) field at E/sub d/ = 40 MeV

Journal Article · · Nucl. Sci. Eng.; (United States)
OSTI ID:5563689
Neutron activation measurements are reported for 44 reactions from 14 materials irradiated in a well-characterized neutron field produced by 40-MeV deuterons impinging on /sup 9/Be at the Oak Ridge Isochronous Cyclotron. Foil packets were located at 0 to 15 deg to the beam at 7.62 cm from the source, and additional foil materials were located directly on the deuteron beam stop 6.25 mm from the source. Integral tests were made for 30 reactions using previously measured time-of-flight (TOF) spectra and neutron cross sections, primarily from ENDF/B-IV, extrapolated to 44 MeV. The integral results are excellent, with an overall standard deviation of +- 11% for 25 recommended reactions (+- 14% for 30 reactions), and neutron spectra unfolded with the SAND II code show excellent agreement with TOF measurements.
OSTI ID:
5563689
Journal Information:
Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 72:2; ISSN NSENA
Country of Publication:
United States
Language:
English