{sup 252}Cf-source-driven frequency analysis measurements with subcritical arrays of PWR fuel pins [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 12 pages : digital, PDF file
Additional Creators:: Oak Ridge National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Experiments with fresh PWR fuel assemblies were performed to assess the ²⁵²Cf-source-driven frequency analysis method for measuring the subcriticality of spent fuel. The measurements at the Babcox and Wilcox Critical Experiments Facility mocked up between 17x17 fuel pins (single assembly) and a full array of 4961 fuel pins (about 17 fuel assemblies) in borated water with a fixed B concentration. For the full array, the B content of the water was varied from 1511 at delayed criticality to 4303 ppM. Measurements were done for various source-detector-fuel pin configurations; they showed high sensitivity of frequency analysis parameters to B content and fissile mass. Parameters such as auto and cross power spectral densities can be calculated directly by a more general model of the Monte Carlo code (MCNP-DSP). Calculation-measurement comparisons are presented. This model permits the validation of neutron and gamma ray transport calculational methods with subcritical measurements using the ²⁵²Cf-source-driven frequency analysis method.

Report Numbers:

E 1.99:conf-960924--4
conf-960924--4

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Note:

Published through SciTech Connect.
08/01/1996.
"conf-960924--4"
"DE96013787"
PHYSOR 96: international conference on the physics of reactors, Mito (Japan), 16-20 Sep 1996.
King, W.T.; Mihalczo, J.T.; Valentine, T.E.; Blakeman, E.D.

Funding Information:

AC05-96OR22464

View MARC record | catkey: 14113106