Determination of radiation direction in environmental monitoring

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dc.contributor.authorCAMPOS, VICENTE de P. dept_BR
dc.contributor.authorMOURA, EDUARDO S.pt_BR
dc.contributor.authorROCHA, FELICIA D.G.pt_BR
dc.contributor.authorMANZOLI, JOSE E.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1stpt_BR
dc.date.accessioned2014-11-17T17:05:36Zpt_BR
dc.date.accessioned2014-11-18T19:27:51Zpt_BR
dc.date.accessioned2015-04-02T00:28:51Z
dc.date.available2014-11-17T17:05:36Zpt_BR
dc.date.available2014-11-18T19:27:51Zpt_BR
dc.date.available2015-04-02T00:28:51Z
dc.date.eventoSeptember 27 - October 2, 2009pt_BR
dc.description.abstractThe assessment of environmental exposure has been performed in Brazil using the thermoluminescence technique at Thermoluminescence Dosimetry Laboratory (LDT), at Nuclear and Energetic Research Institute (IPEN/CNEN-SP). To carry out these measurements, several thermoluminscent dosimeters (TLD's) were used to measure the expose. In this procedure, very few information of direction where the radiation came from is available. A vague supposition about the direction from where the radiation came from could be inferred only by evaluation of multiple dosimeters displaced at entire region of monitoring, but this demand to much effort or sometimes become impractical for certain situations. In this work, a single device is used to provide information about the direction from where the radiation came through. This device is called directional dosimeter (DD)[1]. Using more than one DD it is possible to reduce the uncertainty of the measurements and determine the radiation source position. The DD basically consists of a regular solid with high effective atomic number, where one TLD is positioned at each face. The DD allows evaluating the environmental exposure and the direction of the radiation by a simple vector sum. At each face of the DD, it is associated an orthogonal vector, and modulus of this vector represents the correspond exposure measured by the TLD. The direction of the radiation source is the sum of these faces vectors. The prototype used in this work was a lead cube with six TLDs of CaSO4:Dy/Teflon. The TLDs have high sensibility and are already used in area, environmental and personal monitoring. The measurements had shown the correct environmental exposure and a good indication of the radiation direction.
dc.event.siglaINAC; ENAN; ENFIR; ENINpt_BR
dc.identifier.citationCAMPOS, VICENTE de P. de; MOURA, EDUARDO S.; ROCHA, FELICIA D.G.; MANZOLI, JOSE E. Determination of radiation direction in environmental monitoring. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st, September 27 - October 2, 2009, Rio de Janeiro, RJ. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/12017.
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/12017pt_BR
dc.local.eventoRio de Janeiro, RJpt_BR
dc.publisherSao Paulo: ABEN, 2009pt_BR
dc.rightsopenAccesspt_BR
dc.subjectcalcium sulfatespt_BR
dc.subjectenvironmental exposurept_BR
dc.subjectexperimental datapt_BR
dc.subjectradiation monitoringpt_BR
dc.subjectradiation sourcespt_BR
dc.subjectthermoluminescent dosemeterspt_BR
dc.subjectthermoluminescent dosimetrypt_BR
dc.titleDetermination of radiation direction in environmental monitoringpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorJOSE EDUARDO MANZOLI
ipen.autorFELICIA DEL GALLO ROCHA
ipen.autorEDUARDO SANTANA DE MOURA
ipen.autorVICENTE DE PAULO DE CAMPOS
ipen.codigoautor894
ipen.codigoautor1806
ipen.codigoautor5860
ipen.codigoautor753
ipen.contributor.ipenauthorJOSE EDUARDO MANZOLI
ipen.contributor.ipenauthorFELICIA DEL GALLO ROCHA
ipen.contributor.ipenauthorEDUARDO SANTANA DE MOURA
ipen.contributor.ipenauthorVICENTE DE PAULO DE CAMPOS
ipen.date.recebimento09-10pt_BR
ipen.event.datapadronizada2009pt_BR
ipen.identifier.ipendoc15007pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublicationdfb00f48-ec5f-4d13-9050-7097d6232849
relation.isAuthorOfPublicationfa668b29-92e1-43e8-b9db-5c151ab7d93d
relation.isAuthorOfPublication5d1e1489-cd98-41a8-b4b3-0adef2712441
relation.isAuthorOfPublication.latestForDiscovery5d1e1489-cd98-41a8-b4b3-0adef2712441
sigepi.autor.atividadeCAMPOS, VICENTE P.:753:330:Spt_BR
sigepi.autor.atividadeMOURA, EDUARDO S.:5860:230:Npt_BR
sigepi.autor.atividadeROCHA, FELICIA D.G.:1806:330:Npt_BR
sigepi.autor.atividadeMANZOLI, JOSE E.:894:220:Npt_BR
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