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Validation of the Fast Neutron Field in the Radial Channel of the VR-1 Reactor

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F21%3AN0000077" target="_blank" >RIV/26722445:_____/21:N0000077 - isvavai.cz</a>

  • Alternative codes found

    RIV/60162694:G43__/21:00557389 RIV/68407700:21340/21:00344272

  • Result on the web

    <a href="https://asmedigitalcollection.asme.org/nuclearengineering/article-abstract/7/2/021503/1089043/Validation-of-the-Fast-Neutron-Field-in-the-Radial?redirectedFrom=fulltext" target="_blank" >https://asmedigitalcollection.asme.org/nuclearengineering/article-abstract/7/2/021503/1089043/Validation-of-the-Fast-Neutron-Field-in-the-Radial?redirectedFrom=fulltext</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1115/1.4048906" target="_blank" >10.1115/1.4048906</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Validation of the Fast Neutron Field in the Radial Channel of the VR-1 Reactor

  • Original language description

    This work aims to characterize the neutron spectrum in the beam going out of the university research reactor (VR-1) using tubular-type of the nuclear fuel, version 4M (IRT-4M) fuel. Thanks to its variability, the core is often rearranged to fulfill different research tasks. Measurements with new core configuration have been carried out to confirm the spectrum shape in the neutron beam of the radial channel remains unchanged even though the core has been rearranged. Based on this finding, the VR-1 can be considered as a mockup for other IRT-4M fueled reactors, even with higher power. The neutron spectrum stability has been proven by measurement and by comparison of measurements done on the C12 and C13 cores. Fast neutron spectrum in the channel has been evaluated by means of neutron spectrometry by scintillation detector and activation materials (Au, Co, Ni, Al, Fe, and NaI). If the neutron field stability is proven, the radial channel beam can be used for evaluation of spectrum weighted cross section disregarding changes in the core configuration. Assuming reactions with higher threshold, their rates can be compared with rates obtained in the pure prompt fission neutron spectrum (PFNS), since earlier measurements have shown that the neutron spectrum in the light water reactor cavity is equal to the PFNS above 6 MeV threshold. Result 1.1831 mb for 127I(n,2n) reaction evaluated from the VR-1 activation measurement demonstrates good agreement of the measured reaction rate with tabulated rate averaged in 235U PFNS, confirming the neutron spectrum stability and equality to the PFNS.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Result continuities

  • 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)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Nuclear Engineering and Radiation Science

  • ISSN

    2332-8983

  • e-ISSN

    2332-8975

  • Volume of the periodical

    7

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    1-9

  • UT code for WoS article

    000630005800029

  • EID of the result in the Scopus database

    2-s2.0-85097469480