Measurement of As-75(n,2n) cross section in well-defined spectrum of LR-0 special core

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F17%3AN0000041" target="_blank" >RIV/26722445:_____/17:N0000041 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0306454916309306" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0306454916309306</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.anucene.2016.10.012" target="_blank" >10.1016/j.anucene.2016.10.012</a>

Result language
angličtina
Original language name
Measurement of As-75(n,2n) cross section in well-defined spectrum of LR-0 special core
Original language description
The article describes measurement of the As-75(n,2n)As-74 reaction rate in a well-defined reactor spectrum of a special core assembled in the LR-0 reactor. It presents a comparison of this value with results of calculations. The reaction rate is derived from activity of As-74 which is determined using gamma spectrometry of an irradiated As2O3 sample. The resulting value averaged in reactor spectrum is 77.0 +/- 3.90 mu b. This cross section is important as it is included as neutron flux monitor in the International Reactor Dosimetry and Fusion File. The calculations were carried out with the MCNP6 code using ENDF/B-VII.0, ENDF/B-VII.1 JEFF-3.1, JEFF-3,2, JENDL-3.3, JENDL-4, ROSFOND-2010 and CENDL-3.1 nuclear data libraries. The comparison between calculation and experiment shows very good agreement. The relative difference between calculation and experiment is lower than the related uncertainty in all cases. The discrepancy is even below 1% with ENDF/B-VII.1 and JEFF-3.2.
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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