Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 41 / Number 1 / Pages 56-62
J. B. Czirr, J. S. Lindsey
Nuclear Science and Engineering / Volume 41 / Number 1 / Pages 56-62
Format:electronic copy (download)
The ratio of the neutron capture to fission cross section (α) has been measured for 239Pu in the energy range from 100 eV to 30 keV. Neutron time-of-flight techniques were used to obtain data with an energy resolution of approximately 10% at 10 keV. The data yield an average α = 0.80 ± 0.05 between 0.10 and 10 keV for an energy-independent incident neutron spectrum. Also, α data were obtained in the resolved resonance region below 100 eV.
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