Design of a fiber-phantom detector for quality assurance in Proton Therapy

Detalhes bibliográficos
Autor(a) principal: Salgueiro, Daniel Filipe Rodrigues
Data de Publicação: 2022
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10451/58352
Resumo: Tese de mestrado, Engenharia Física , Universidade de Lisboa, Faculdade de Ciências, 2022
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spelling Design of a fiber-phantom detector for quality assurance in Proton TherapyPrototerapiaFantomaDosimetriaGarantia de qualidadeFibras óticas cintilantesTeses de mestrado - 2022Departamento de FísicaTese de mestrado, Engenharia Física , Universidade de Lisboa, Faculdade de Ciências, 2022The quality assurance of a beam is a key step in delivering a dose to a patient in a safe and accurate manner, with international recommendations for proton therapy being established by the American Association of Physicists in Medicine. This radiotherapy modality, in contrast to others, permits a greater accuracy by creating a high dose region, minimizing damage to the surrounding tissue. Depending on the delivery technique chosen there are several parameters that must be checked regularly, be it daily, weekly, monthly or annually. The detectors used in these procedures must be able to measure the in-depth energy distribution with very good spatial-resolution. In this project the prototype of a fiber-phantom for quality control in particle radiotherapy is to be designed using a detector currently constructed with scintillating plastic optical fibers juxtaposed in a frame. The dimensions of the fibers provide a high transversal spatial resolution and their composition allows them to be tissue equivalent. This phantom will be built with a modular structure consisting of a central module where the detector is embedded, to which additional volumes can be added to increase the size of the phantom, as well as changing the position of the detector, enabling it to measure the dose profile at different depths. Different designs will be tested in Monte Carlo simulations to ascertain the one most adequate one. As the fiber-phantom requires testing a 50 kV X-ray tube will be characterized through the use of other dosimeters (ionization chambers and radiochromic film) so it can be inserted into the simulations. A delay in the detector readout availability meant that practical results could not be achieved, nevertheless the photon source to be used was characterized and used in the study of the possible structures for the fiber-phantom through its inclusion in simulations. A proton source was also simulated to test the effectiveness of the detector setups, from which resulted the need to propose alternative configurations for the central module.Sampaio, Jorge Miguel De Brito AlmeidaSaraiva, João Gentil Mendes, 1972-Repositório da Universidade de LisboaSalgueiro, Daniel Filipe Rodrigues2023-06-27T17:17:47Z202220222022-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10451/58352enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-08T17:07:14Zoai:repositorio.ul.pt:10451/58352Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:08:40.339360Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Design of a fiber-phantom detector for quality assurance in Proton Therapy
title Design of a fiber-phantom detector for quality assurance in Proton Therapy
spellingShingle Design of a fiber-phantom detector for quality assurance in Proton Therapy
Salgueiro, Daniel Filipe Rodrigues
Prototerapia
Fantoma
Dosimetria
Garantia de qualidade
Fibras óticas cintilantes
Teses de mestrado - 2022
Departamento de Física
title_short Design of a fiber-phantom detector for quality assurance in Proton Therapy
title_full Design of a fiber-phantom detector for quality assurance in Proton Therapy
title_fullStr Design of a fiber-phantom detector for quality assurance in Proton Therapy
title_full_unstemmed Design of a fiber-phantom detector for quality assurance in Proton Therapy
title_sort Design of a fiber-phantom detector for quality assurance in Proton Therapy
author Salgueiro, Daniel Filipe Rodrigues
author_facet Salgueiro, Daniel Filipe Rodrigues
author_role author
dc.contributor.none.fl_str_mv Sampaio, Jorge Miguel De Brito Almeida
Saraiva, João Gentil Mendes, 1972-
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Salgueiro, Daniel Filipe Rodrigues
dc.subject.por.fl_str_mv Prototerapia
Fantoma
Dosimetria
Garantia de qualidade
Fibras óticas cintilantes
Teses de mestrado - 2022
Departamento de Física
topic Prototerapia
Fantoma
Dosimetria
Garantia de qualidade
Fibras óticas cintilantes
Teses de mestrado - 2022
Departamento de Física
description Tese de mestrado, Engenharia Física , Universidade de Lisboa, Faculdade de Ciências, 2022
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022-01-01T00:00:00Z
2023-06-27T17:17:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10451/58352
url http://hdl.handle.net/10451/58352
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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