Absolute Measurement of the Cross Section for 23-keV Neutron Activation of Thorium

George T. Baldwin; Glenn F. Knoll

doi:dx.doi.org/10.13182/NSE84-A28396

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 88 / Number 2

Absolute Measurement of the Cross Section for 23-keV Neutron Activation of Thorium

George T. Baldwin, Glenn F. Knoll

Nuclear Science and Engineering / Volume 88 / Number 2 / October 1984 / Pages 123-128

Technical Paper / dx.doi.org/10.13182/NSE84-A28396

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Absolute measurement of the thorium radiative capture cross section has been made using antimony-beryllium photoneutrons and an activation method. The average of two determinations is 606 mb near 23-keV neutron energy with a 3.2% estimated error from all sources. This value is ∼10% higher than those reported from recent measurements employing iron-filtered neutron beams.