Measurement of selected differential cross sections in 235U spectrum

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000014" target="_blank" >RIV/26722445:_____/19:N0000014 - isvavai.cz</a>
Result on the web
<a href="https://asmedigitalcollection.asme.org/nuclearengineering/article-abstract/5/3/030906/725875/Measurement-of-Selected-Differential-Cross?redirectedFrom=fulltext" target="_blank" >https://asmedigitalcollection.asme.org/nuclearengineering/article-abstract/5/3/030906/725875/Measurement-of-Selected-Differential-Cross?redirectedFrom=fulltext</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/1.4042850" target="_blank" >10.1115/1.4042850</a>

Result language
angličtina
Original language name
Measurement of selected differential cross sections in 235U spectrum
Original language description
This paper describes the measurement of Mn-55(n,2n) and I-127(n,2n) reaction rates in a well-defined reactor field in a special core of LR-0 reactor. The reaction rates were derived using gamma-spectrometry by measuring gamma activities of irradiated MnO2 and NaI samples at a high purity germanium (HPGe) detector. The spectral average cross section (SACS) in U-235 prompt fission neutron spectrum (PFNS) was experimentally determined to be 0.2393 +/- 0.015 x 10(-3) b for Mn-55 and 1.2087 +/- 0.052 x 10(-3) b for I-127. These obtained results were compared with calculations by MCNP6 code using ENDF/B VII.1, ENDF/B VII, JEFF-3.1, JEFF-3.2, JENDL-3.3, JENDL-4, ROSFOND-2010, CENDL-3.1, and IRDFF nuclear data libraries. In a case of Mn-55, a good agreement with ENDF/B VII.1, JEFF 3.1, JENDL 3.3, JENDL 4, ROSFOND, and CENDL 3.1 nuclear data libraries was found, where C/E-1 is 0.1%, while IRDFF underestimated by about 15.8%. In the case of I-127, more significant discrepancies were found, where JENDL 3.3 and JENDL 4 overestimate the result by about 31.3%.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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