Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras

Autores
Rodríguez Colmeiro, Ramiro G.; Verrastro, Claudio A.
Año de publicación
2018
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the sensibility of photomultiplier tubes. The selection of these variables have a strong impact on the final performance of the scintillation camera. A new method to select photomultiplier is presented in this paper, regarding its gain, making use of k-means clustering and genetic algorithms. The proposed algorithm was tested and applied in the construction of six scintillation cameras for the Argentinean positron emission tomogaph prototype (AR-PET), a problem with more than 10+600 possible configurations. The resulting configuration of the scintillation cameras reduced the software-freecalibration FWHM of the camera from 20% to 15% average.
Facultad de Informática
Materia
Ciencias Informáticas
anger camera
genetic algorithms
pet tomography
photomultiplier placement
scintillation cameras
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/66712
Acceder
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network_name_str SEDICI (UNLP)
spelling Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation CamerasRodríguez Colmeiro, Ramiro G.Verrastro, Claudio A.Ciencias Informáticasanger cameragenetic algorithmspet tomographyphotomultiplier placementscintillation camerasThe construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the sensibility of photomultiplier tubes. The selection of these variables have a strong impact on the final performance of the scintillation camera. A new method to select photomultiplier is presented in this paper, regarding its gain, making use of k-means clustering and genetic algorithms. The proposed algorithm was tested and applied in the construction of six scintillation cameras for the Argentinean positron emission tomogaph prototype (AR-PET), a problem with more than 10+600 possible configurations. The resulting configuration of the scintillation cameras reduced the software-freecalibration FWHM of the camera from 20% to 15% average.Facultad de Informática2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf12-17http://sedici.unlp.edu.ar/handle/10915/66712spainfo:eu-repo/semantics/altIdentifier/url/http://journal.info.unlp.edu.ar/JCST/article/view/690/220info:eu-repo/semantics/altIdentifier/issn/1666-6038info:eu-repo/semantics/altIdentifier/doi/10.24215/16666038.18.e02info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:50:56Zoai:sedici.unlp.edu.ar:10915/66712Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:50:56.494SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
title Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
spellingShingle Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
Rodríguez Colmeiro, Ramiro G.
Ciencias Informáticas
anger camera
genetic algorithms
pet tomography
photomultiplier placement
scintillation cameras
title_short Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
title_full Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
title_fullStr Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
title_full_unstemmed Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
title_sort Heuristic Method for Photo-detectors Localization over Continuous Crystal Scintillation Cameras
dc.creator.none.fl_str_mv Rodríguez Colmeiro, Ramiro G.
Verrastro, Claudio A.
author Rodríguez Colmeiro, Ramiro G.
author_facet Rodríguez Colmeiro, Ramiro G.
Verrastro, Claudio A.
author_role author
author2 Verrastro, Claudio A.
author2_role author
dc.subject.none.fl_str_mv Ciencias Informáticas
anger camera
genetic algorithms
pet tomography
photomultiplier placement
scintillation cameras
topic Ciencias Informáticas
anger camera
genetic algorithms
pet tomography
photomultiplier placement
scintillation cameras
dc.description.none.fl_txt_mv The construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the sensibility of photomultiplier tubes. The selection of these variables have a strong impact on the final performance of the scintillation camera. A new method to select photomultiplier is presented in this paper, regarding its gain, making use of k-means clustering and genetic algorithms. The proposed algorithm was tested and applied in the construction of six scintillation cameras for the Argentinean positron emission tomogaph prototype (AR-PET), a problem with more than 10+600 possible configurations. The resulting configuration of the scintillation cameras reduced the software-freecalibration FWHM of the camera from 20% to 15% average.
Facultad de Informática
description The construction process of large scintillation cameras with continuous crystals is a complex problem affected by multiple variables, from the physical construction of the scintillation crystal to the dispersion in the sensibility of photomultiplier tubes. The selection of these variables have a strong impact on the final performance of the scintillation camera. A new method to select photomultiplier is presented in this paper, regarding its gain, making use of k-means clustering and genetic algorithms. The proposed algorithm was tested and applied in the construction of six scintillation cameras for the Argentinean positron emission tomogaph prototype (AR-PET), a problem with more than 10+600 possible configurations. The resulting configuration of the scintillation cameras reduced the software-freecalibration FWHM of the camera from 20% to 15% average.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/66712
url http://sedici.unlp.edu.ar/handle/10915/66712
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journal.info.unlp.edu.ar/JCST/article/view/690/220
info:eu-repo/semantics/altIdentifier/issn/1666-6038
info:eu-repo/semantics/altIdentifier/doi/10.24215/16666038.18.e02
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
dc.format.none.fl_str_mv application/pdf
12-17
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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