New delayed neutron group constants and covariances for LWR core applications, combining summation calculations and integral experiments
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DOI: 10.1016/j.anucene.2019.107250
Abstract: 2019 Elsevier Ltd. All rights reserved. P R1 R1 read more here.
Keywords: constants covariances; neutron group; group constants; new delayed ... See more keywords
Sensitivities of delayed neutron fractions in the framework of SCALE 6.2
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DOI: 10.1016/j.anucene.2020.108068
Abstract: Abstract The paper presents different methods for evaluating sensitivities and uncertainties of the effective delayed neutron fraction (βeff) with respect to microscopic nuclear data in the framework of the SCALE 6.2 code system. The prompt… read more here.
Keywords: fractions framework; framework scale; neutron fractions; delayed neutron ... See more keywords
Evaluation of βeff measurements from BERENICE programme with Tripoli4® and uncertainty qualification
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DOI: 10.1016/j.pnucene.2017.03.003
Abstract: Abstract The effective delayed neutron fraction ( β eff ) is an important characteristic of nuclear reactors since it affects transients significantly. It is therefore important to characterise it correctly. The use of best-estimate codes… read more here.
Keywords: uncertainty; delayed neutron; eff measurements; evaluation eff ... See more keywords
Scaling beta-delayed neutron measurements to large detector areas
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Physics"
DOI: 10.1063/1.4986382
Abstract: We explore the performance of a cargo screening system that consists of two large-sized composite scintillation detectors and a high-energy neutron interrogation source by modeling and simulation. The goal of the system is to measure… read more here.
Keywords: neutron; neutron measurements; measurements large; beta delayed ... See more keywords
Validation of several sets of delayed-neutron group parameters for thermal fission of 235U by a Feynman-α analysis
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Nuclear Science and Technology"
DOI: 10.1080/00223131.2021.1965049
Abstract: ABSTRACT Time-sequence count data of a neutron counter were acquired at subcritical states of UTR-KINKI reactor and then a Feynman-α analysis considering delayed neutrons was carried out to determine a measured ratio of delayed to… read more here.
Keywords: delayed neutron; group; measured ratio; feynman analysis ... See more keywords
Pygmy Gamow-Teller resonance in the N = 50 region: New evidence from staggering of β -delayed neutron-emission probabilities
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DOI: 10.1103/physrevc.95.054320
Abstract: We report on the β-delayed neutron emission probability (P1n) measurements of the Ga82,83,84 (N=51,52,53) precursors performed in one single experiment using the He3 neutron-counter TETRA at the ALTO facility in Orsay. Altogether our results for… read more here.
Keywords: teller resonance; neutron emission; pygmy gamow; gamow teller ... See more keywords
Impact of Tensor Interaction on Beta-Delayed Neutron Emission from Neutron-Rich Nickel Isotopes
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DOI: 10.1134/s1063778818010192
Abstract: The Skyrme energy density functional including tensor interaction is used to describe microscopically multineutron delayed-neutron emission accompanying beta decay of even–even neutron-rich nickel isotopes of mass number in the range of A = 74−80. The… read more here.
Keywords: tensor; beta; tensor interaction; delayed neutron ... See more keywords