Journal article Open Access

Analysis of the neutron noise induced by fuel assembly vibrations

Andrea Zoia; Amélie Rouchon; Baptiste Gasse; Christophe Demazière; Paolo Vinai


MARC21 XML Export

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="http://www.loc.gov/MARC21/slim">
  <leader>00000nam##2200000uu#4500</leader>
  <datafield tag="041" ind1=" " ind2=" ">
    <subfield code="a">eng</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">Neutron noise</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">Frequency domain</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">Linearized equations</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">Non-pertubative approach</subfield>
  </datafield>
  <datafield tag="653" ind1=" " ind2=" ">
    <subfield code="a">Harmonics</subfield>
  </datafield>
  <controlfield tag="005">20210217122719.0</controlfield>
  <controlfield tag="001">4545311</controlfield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Université Paris-Saclay, CEA</subfield>
    <subfield code="a">Amélie Rouchon</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Université Paris-Saclay, CEA</subfield>
    <subfield code="a">Baptiste Gasse</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Chalmers University of Technology</subfield>
    <subfield code="a">Christophe Demazière</subfield>
  </datafield>
  <datafield tag="700" ind1=" " ind2=" ">
    <subfield code="u">Chalmers University of Technology</subfield>
    <subfield code="a">Paolo Vinai</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="s">586720</subfield>
    <subfield code="z">md5:f1e3faa745b17944d1aa50e1d0a08575</subfield>
    <subfield code="u">https://zenodo.org/record/4545311/files/2021_Zoia_ANE_paper_V1.pdf</subfield>
  </datafield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  </datafield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2021-02-17</subfield>
  </datafield>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="p">openaire</subfield>
    <subfield code="o">oai:zenodo.org:4545311</subfield>
  </datafield>
  <datafield tag="909" ind1="C" ind2="4">
    <subfield code="v">154</subfield>
    <subfield code="p">Annals of Nuclear Energy</subfield>
    <subfield code="n">108061</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="u">Université Paris-Saclay, CEA</subfield>
    <subfield code="a">Andrea Zoia</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Analysis of the neutron noise induced by fuel assembly vibrations</subfield>
  </datafield>
  <datafield tag="536" ind1=" " ind2=" ">
    <subfield code="c">754316</subfield>
    <subfield code="a">Core monitoring techniques and experimental validation and demonstration</subfield>
  </datafield>
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="u">https://creativecommons.org/licenses/by/4.0/legalcode</subfield>
    <subfield code="a">Creative Commons Attribution 4.0 International</subfield>
  </datafield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="a">cc-by</subfield>
    <subfield code="2">opendefinition.org</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">&lt;p&gt;The investigation of neutron noise is key to several applications in nuclear reactor&lt;br&gt;
physics, such as the detection of control rod or assembly vibrations and&lt;br&gt;
the diagnostic of coolant speed and void fraction. In this paper we will elucidate&lt;br&gt;
some aspects of the noise equations in the Fourier domain, for the case of&lt;br&gt;
periodic fuel rod vibrations with frequency &amp;omega;&lt;sub&gt;0&lt;/sub&gt; in a small symmetrical system&lt;br&gt;
in which the perturbation is centrally located. We will in particular focus on&lt;br&gt;
the double frequency effect, i.e., the emergence of a noise component at 2&amp;omega;&lt;sub&gt;0&lt;/sub&gt;&lt;br&gt;
(possibly stronger than the one at the fundamental frequency &amp;omega;&lt;sub&gt;0&lt;/sub&gt;). Our analysis&lt;br&gt;
will be carried out without truncating the noise source at the first order and in&lt;br&gt;
the context of a non-perturbative approach (i.e., without resorting to linearization).&lt;br&gt;
For this purpose, we will select a simple benchmark configuration that&lt;br&gt;
is amenable to accurate reference solutions obtained by solving the exact timedependent&lt;br&gt;
transport equations. The analysis carried out in this work suggests&lt;br&gt;
that the non-perturbative noise equations are mandatory in order to properly discriminate&lt;br&gt;
the possible emergence of double frequency effects in neutron noise,&lt;br&gt;
especially in view of comparing simulation results to experimental data&lt;/p&gt;</subfield>
  </datafield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1016/j.anucene.2020.108061</subfield>
    <subfield code="2">doi</subfield>
  </datafield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">publication</subfield>
    <subfield code="b">article</subfield>
  </datafield>
</record>
13
22
views
downloads
Views 13
Downloads 22
Data volume 12.9 MB
Unique views 10
Unique downloads 20

Share

Cite as