Subcritical boron experiments in the IPEN/MB-01 reactor

Detalhes bibliográficos
Autor(a) principal: SANTOS, A. dos
Data de Publicação: 2019
Outros Autores: SOUZA, G.S., SANTOS, D.F., ANDRADE, D.A., EUROPEAN RESEARCH REACTOR CONFERENCE
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/30123
Resumo: Macroscopic (APSD and CPSD) and microscopic (Rossi-??) neutron noise experiments were performed in the IPEN/MB-01 reactor in order to measure subcritical reactivities. Subcritical states of up to around -6600 pcm were reached with insertion of boric acid (H3BO3) into the moderator tank. The subcritical kinetic model of Gandini and Salvatores was employed to infer the relative power between two consecutive subcritical cases, the subcritical reactivity (????gen), and the subcriticality index (????). This experimental methodology to measure these parameters was successfully employed in a previous experiment performed in the IPEN/MB-01 reactor. The measured subcritical reactivities are in good agreement for the APSD and Rossi-?? cases. However, some drawbacks were found for the CPSD cases due to difficulties in the establishment of the cutoff frequency. The MCNP6.1 calculated subcritical reactivities were in a good agreement to APSD??s and Rossi-?? measurement values. The ENDF/B-VII.0 nuclear data library was employed in all cases.
id IPEN_f37cdb2c689da96404b830fb518f902f
oai_identifier_str oai:repositorio.ipen.br:123456789/30123
network_acronym_str IPEN
network_name_str Repositório Institucional do IPEN
repository_id_str 4510
spelling 2019-08-27T11:48:10Z2019-08-27T11:48:10ZMarch 24-28, 2019http://repositorio.ipen.br/handle/123456789/301230000-0002-6689-3011Macroscopic (APSD and CPSD) and microscopic (Rossi-??) neutron noise experiments were performed in the IPEN/MB-01 reactor in order to measure subcritical reactivities. Subcritical states of up to around -6600 pcm were reached with insertion of boric acid (H3BO3) into the moderator tank. The subcritical kinetic model of Gandini and Salvatores was employed to infer the relative power between two consecutive subcritical cases, the subcritical reactivity (????gen), and the subcriticality index (????). This experimental methodology to measure these parameters was successfully employed in a previous experiment performed in the IPEN/MB-01 reactor. The measured subcritical reactivities are in good agreement for the APSD and Rossi-?? cases. However, some drawbacks were found for the CPSD cases due to difficulties in the establishment of the cutoff frequency. The MCNP6.1 calculated subcritical reactivities were in a good agreement to APSD??s and Rossi-?? measurement values. The ENDF/B-VII.0 nuclear data library was employed in all cases.Submitted by Pedro Silva Filho (pfsilva@ipen.br) on 2019-08-27T11:48:10Z No. of bitstreams: 1 25917.pdf: 1131259 bytes, checksum: a945f05be4efc1fe632b0fe75559790b (MD5)Made available in DSpace on 2019-08-27T11:48:10Z (GMT). No. of bitstreams: 1 25917.pdf: 1131259 bytes, checksum: a945f05be4efc1fe632b0fe75559790b (MD5)European Nuclear Societyboronreactor noiseamplifierscriticalitysubcritical assembliesipen-mb-1 reactorneutronsresearch reactorsdata processingSubcritical boron experiments in the IPEN/MB-01 reactorinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectRRFMIBrussels, BelgiumJordan355972112721258600600600600SANTOS, A. dosSOUZA, G.S.SANTOS, D.F.ANDRADE, D.A.EUROPEAN RESEARCH REACTOR CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN259172019ANDRADE, D.A.SANTOS, D.F.SOUZA, G.S.SANTOS, A. dos19-08Proceedings125811272597235ANDRADE, D.A.:1258:420:NSANTOS, D.F.:11272:420:NSOUZA, G.S.:5972:420:NSANTOS, A. dos:35:420:SORIGINAL25917.pdf25917.pdfapplication/pdf1131259http://repositorio.ipen.br/bitstream/123456789/30123/1/25917.pdfa945f05be4efc1fe632b0fe75559790bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/30123/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/301232020-01-08 17:01:42.265oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102020-01-08T17:01:42Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv Subcritical boron experiments in the IPEN/MB-01 reactor
title Subcritical boron experiments in the IPEN/MB-01 reactor
spellingShingle Subcritical boron experiments in the IPEN/MB-01 reactor
SANTOS, A. dos
boron
reactor noise
amplifiers
criticality
subcritical assemblies
ipen-mb-1 reactor
neutrons
research reactors
data processing
title_short Subcritical boron experiments in the IPEN/MB-01 reactor
title_full Subcritical boron experiments in the IPEN/MB-01 reactor
title_fullStr Subcritical boron experiments in the IPEN/MB-01 reactor
title_full_unstemmed Subcritical boron experiments in the IPEN/MB-01 reactor
title_sort Subcritical boron experiments in the IPEN/MB-01 reactor
author SANTOS, A. dos
author_facet SANTOS, A. dos
SOUZA, G.S.
SANTOS, D.F.
ANDRADE, D.A.
EUROPEAN RESEARCH REACTOR CONFERENCE
author_role author
author2 SOUZA, G.S.
SANTOS, D.F.
ANDRADE, D.A.
EUROPEAN RESEARCH REACTOR CONFERENCE
author2_role author
author
author
author
dc.contributor.author.fl_str_mv SANTOS, A. dos
SOUZA, G.S.
SANTOS, D.F.
ANDRADE, D.A.
EUROPEAN RESEARCH REACTOR CONFERENCE
dc.subject.por.fl_str_mv boron
reactor noise
amplifiers
criticality
subcritical assemblies
ipen-mb-1 reactor
neutrons
research reactors
data processing
topic boron
reactor noise
amplifiers
criticality
subcritical assemblies
ipen-mb-1 reactor
neutrons
research reactors
data processing
description Macroscopic (APSD and CPSD) and microscopic (Rossi-??) neutron noise experiments were performed in the IPEN/MB-01 reactor in order to measure subcritical reactivities. Subcritical states of up to around -6600 pcm were reached with insertion of boric acid (H3BO3) into the moderator tank. The subcritical kinetic model of Gandini and Salvatores was employed to infer the relative power between two consecutive subcritical cases, the subcritical reactivity (????gen), and the subcriticality index (????). This experimental methodology to measure these parameters was successfully employed in a previous experiment performed in the IPEN/MB-01 reactor. The measured subcritical reactivities are in good agreement for the APSD and Rossi-?? cases. However, some drawbacks were found for the CPSD cases due to difficulties in the establishment of the cutoff frequency. The MCNP6.1 calculated subcritical reactivities were in a good agreement to APSD??s and Rossi-?? measurement values. The ENDF/B-VII.0 nuclear data library was employed in all cases.
publishDate 2019
dc.date.evento.pt_BR.fl_str_mv March 24-28, 2019
dc.date.accessioned.fl_str_mv 2019-08-27T11:48:10Z
dc.date.available.fl_str_mv 2019-08-27T11:48:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ipen.br/handle/123456789/30123
dc.identifier.orcid.pt_BR.fl_str_mv 0000-0002-6689-3011
url http://repositorio.ipen.br/handle/123456789/30123
identifier_str_mv 0000-0002-6689-3011
dc.relation.authority.fl_str_mv 35
5972
11272
1258
dc.relation.confidence.fl_str_mv 600
600
600
600
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.coverage.pt_BR.fl_str_mv I
dc.publisher.none.fl_str_mv European Nuclear Society
publisher.none.fl_str_mv European Nuclear Society
dc.source.none.fl_str_mv reponame:Repositório Institucional do IPEN
instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron:IPEN
instname_str Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron_str IPEN
institution IPEN
reponame_str Repositório Institucional do IPEN
collection Repositório Institucional do IPEN
bitstream.url.fl_str_mv http://repositorio.ipen.br/bitstream/123456789/30123/1/25917.pdf
http://repositorio.ipen.br/bitstream/123456789/30123/2/license.txt
bitstream.checksum.fl_str_mv a945f05be4efc1fe632b0fe75559790b
8a4605be74aa9ea9d79846c1fba20a33
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
repository.name.fl_str_mv Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)
repository.mail.fl_str_mv bibl@ipen.br
_version_ 1767254247876853760

Registros relacionados