Spatial distribution measurements of fission neutrons in water as an oxygen data test

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The spatial distribution of the total neutron density from a /sup 252/Cf source in pure water was measured to high statistical precision at distances from 11 to 80 cm from the source. Assuming the adequacy of the ENDF/B-IV hydrogen, and reasonable constraints on the fission spectrum mean energy, good agreement between experiment and a one-dimensional transport calculation was obtained for both ENDF/B-III and IV oxygen, with Version III slightly better. However, small residual differences remained that could not be removed by adjustment of the spectrum mean energy alone.

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49 pages

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Green, L. & Ullo, J.J. February 1978.

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  • Main Title: Spatial distribution measurements of fission neutrons in water as an oxygen data test
  • Series Title: AWBA Development Program

Description

The spatial distribution of the total neutron density from a /sup 252/Cf source in pure water was measured to high statistical precision at distances from 11 to 80 cm from the source. Assuming the adequacy of the ENDF/B-IV hydrogen, and reasonable constraints on the fission spectrum mean energy, good agreement between experiment and a one-dimensional transport calculation was obtained for both ENDF/B-III and IV oxygen, with Version III slightly better. However, small residual differences remained that could not be removed by adjustment of the spectrum mean energy alone.

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49 pages

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Dep. NTIS, PC A03/MF A01.

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 1978

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  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 24, 2021, 8:48 p.m.

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Green, L. & Ullo, J.J. Spatial distribution measurements of fission neutrons in water as an oxygen data test, report, February 1978; West Mifflin, Pennsylvania. (https://digital.library.unt.edu/ark:/67531/metadc1061616/: accessed September 27, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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