Determination of energy-dependent neutron backgrounds using shadow bars
S. N. Paneru, K. W. Brown, F.C.E Teh, K. Zhu, M.B. Tsang, D., DellAquila, Z. Chajecki, W.G. Lynch, S. Sweany, C.Y. Tsang, A.K. Anthony, J., Barney, J. Estee, I. Gasparic, G. Jhang, O.B. Khanal, J. Mandredi, C.Y. Niu,, R.S. Wang, J.C. Zamora
TL;DR
This paper presents a method using shadow bars to measure energy-dependent neutron backgrounds, improving the accuracy of neutron yield assessments in nuclear reactions.
Contribution
It introduces a technique employing shadow bars to determine neutron background fractions as a function of energy, addressing systematic uncertainties and background modeling.
Findings
Neutron background fractions vary with energy.
Shadow bars effectively isolate background contributions.
Systematic uncertainties depend on background models.
Abstract
Understanding the neutron background is essential for determining the neutron yield from nuclear reactions. In the analysis presented here, the shadow bars are placed in front of neutron detectors to determine the energy dependent neutron background fractions. The measurement of neutron spectra with and without shadow bars is important to determine the neutron background more accurately. The neutron background, along with its sources and systematic uncertainties, are explored with a focus on the impact of background models and their dependence on neutron energy.
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Taxonomy
TopicsNuclear Physics and Applications · Nuclear reactor physics and engineering · Radiation Detection and Scintillator Technologies