Development of an asymmetric multiple-position neutron source (AMPNS) method to monitor the criticality of a degraded reactor core
Identifieur interne : 002673 ( Istex/Corpus ); précédent : 002672; suivant : 002674Development of an asymmetric multiple-position neutron source (AMPNS) method to monitor the criticality of a degraded reactor core
Auteurs : S. H. Levine ; S. S. KimSource :
- Annals of Nuclear Energy [ 0306-4549 ] ; 1985.
Abstract
Tne analytical/experimental method has been developed to to monitor the subcritical reactivity and unfold the k∞ distribution of a degraded reactor core. The method uses several fixed neutron detectors and a 252Cfneutron source placed sequentially in multiple positions in the core. Therefore, it is called the asymmetric multiple-position neutron source (AMPNS) method. The AMPNS method employs the nucleonic codes to analyze in two dimensions the neutron multiplication of a 252Cf neutron source. An optimization program, GPM, was utilized to unfold the k∞ distribution of the degraded core, in which the desired performance measure minimizes the error between the calculated and the measured count rates of the degraded reactor core. The analytical/experimental approach is validated by performing experiments using the Penn. State Breazeale TRIGA reactor (PSBR). A significant result of this study has been to provide a means to plan the source and detector placements and assign core cells to the damaged TMI-2 core as well as to monitor the criticality during the recovery period.
Url:
DOI: 10.1016/0306-4549(85)90026-X
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Kim</name><affiliation><mods:affiliation>The Pennsylvania State University, University Park, PA 16802, U.S.A.</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:1DDE89A29C20E3AF90F2834A5A3211D95409C595</idno><date when="1985" year="1985">1985</date><idno type="doi">10.1016/0306-4549(85)90026-X</idno><idno type="url">https://api.istex.fr/document/1DDE89A29C20E3AF90F2834A5A3211D95409C595/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002673</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Development of an asymmetric multiple-position neutron source (AMPNS) method to monitor the criticality of a degraded reactor core</title><author><name sortKey="Levine, S H" sort="Levine, S H" uniqKey="Levine S" first="S. H." last="Levine">S. H. Levine</name><affiliation><mods:affiliation>The Pennsylvania State University, University Park, PA 16802, U.S.A.</mods:affiliation></affiliation></author><author><name sortKey="Kim, S S" sort="Kim, S S" uniqKey="Kim S" first="S. S." last="Kim">S. S. Kim</name><affiliation><mods:affiliation>The Pennsylvania State University, University Park, PA 16802, U.S.A.</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Annals of Nuclear Energy</title><title level="j" type="abbrev">ANE</title><idno type="ISSN">0306-4549</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1985">1985</date><biblScope unit="volume">12</biblScope><biblScope unit="issue">10</biblScope><biblScope unit="page" from="517">517</biblScope><biblScope unit="page" to="533">533</biblScope></imprint><idno type="ISSN">0306-4549</idno></series><idno type="istex">1DDE89A29C20E3AF90F2834A5A3211D95409C595</idno><idno type="DOI">10.1016/0306-4549(85)90026-X</idno><idno type="PII">0306-4549(85)90026-X</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0306-4549</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Tne analytical/experimental method has been developed to to monitor the subcritical reactivity and unfold the k∞ distribution of a degraded reactor core. The method uses several fixed neutron detectors and a 252Cfneutron source placed sequentially in multiple positions in the core. Therefore, it is called the asymmetric multiple-position neutron source (AMPNS) method. The AMPNS method employs the nucleonic codes to analyze in two dimensions the neutron multiplication of a 252Cf neutron source. An optimization program, GPM, was utilized to unfold the k∞ distribution of the degraded core, in which the desired performance measure minimizes the error between the calculated and the measured count rates of the degraded reactor core. The analytical/experimental approach is validated by performing experiments using the Penn. State Breazeale TRIGA reactor (PSBR). A significant result of this study has been to provide a means to plan the source and detector placements and assign core cells to the damaged TMI-2 core as well as to monitor the criticality during the recovery period.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>S.H. Levine</name><affiliations><json:string>The Pennsylvania State University, University Park, PA 16802, U.S.A.</json:string></affiliations></json:item><json:item><name>S.S. Kim</name><affiliations><json:string>The Pennsylvania State University, University Park, PA 16802, U.S.A.</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><abstract>Tne analytical/experimental method has been developed to to monitor the subcritical reactivity and unfold the k∞ distribution of a degraded reactor core. The method uses several fixed neutron detectors and a 252Cfneutron source placed sequentially in multiple positions in the core. Therefore, it is called the asymmetric multiple-position neutron source (AMPNS) method. The AMPNS method employs the nucleonic codes to analyze in two dimensions the neutron multiplication of a 252Cf neutron source. An optimization program, GPM, was utilized to unfold the k∞ distribution of the degraded core, in which the desired performance measure minimizes the error between the calculated and the measured count rates of the degraded reactor core. The analytical/experimental approach is validated by performing experiments using the Penn. State Breazeale TRIGA reactor (PSBR). 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