Fission-product gamma-ray line pairs sensitive to fissile material and neutron energy

The beta-delayed gamma-ray spectra from the fission of 235U, 238U, and 239Pu by thermal and near-14-MeV neutrons have been measured for delay times ranging from 1 min to 14 h. Spectra at all delay times contain sets of prominent gamma-ray lines with intensity ratios that identify the fissile materia...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2008-07, Vol.592 (3), p.463-471
Main Authors: Marrs, R.E., Norman, E.B., Burke, J.T., Macri, R.A., Shugart, H.A., Browne, E., Smith, A.R.
Format: Article
Language:English
Subjects:
Fission-product gamma-ray spectroscopy
Nuclear forensics
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Summary:The beta-delayed gamma-ray spectra from the fission of 235U, 238U, and 239Pu by thermal and near-14-MeV neutrons have been measured for delay times ranging from 1 min to 14 h. Spectra at all delay times contain sets of prominent gamma-ray lines with intensity ratios that identify the fissile material and distinguish between fission induced by low-energy or high-energy neutrons.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2008.04.032