Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/354965
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Gamma-ray sources imaging and test-beam results with MACACO III Compton camera |
Autor: | Barrientos, L.; Borja-Lloret, Marina; Casaña, José Vicente; Dendooven, P.; García López, J. CSIC ORCID; Hueso-González, F.; Jiménez-Ramos, M. C. CSIC ORCID; Pérez-Curbelo, J.; Ros García, Ana CSIC ORCID; Roser, J.; Senra, C.; Viegas, R.; Llosá, Gabriela CSIC ORCID | Palabras clave: | Hadron therapy Compton camera Scintillator crystals Silicon photomultipliers |
Fecha de publicación: | ene-2024 | Editor: | Elsevier | Citación: | Physica Medica 117: 103199 (2024) | Resumen: | Hadron therapy is a radiotherapy modality which offers a precise energy deposition to the tumors and a dose reduction to healthy tissue as compared to conventional methods. However, methods for real-time monitoring are required to ensure that the radiation dose is deposited on the target. The IRIS group of IFIC-Valencia developed a Compton camera prototype for this purpose, intending to image the Prompt Gammas emitted by the tissue during irradiation. The system detectors are composed of Lanthanum (III) bromide scintillator crystals coupled to silicon photomultipliers. After an initial characterization in the laboratory, in order to assess the system capabilities for future experiments in proton therapy centers, different tests were carried out in two facilities: PARTREC (Groningen, The Netherlands) and the CNA cyclotron (Sevilla, Spain). Characterization studies performed at PARTREC indicated that the detectors linearity was improved with respect to the previous version and an energy resolution of 5.2 % FWHM at 511 keV was achieved. Moreover, the imaging capabilities of the system were evaluated with a line source of 68Ge and a point-like source of 241Am-9Be. Images at 4.439 MeV were obtained from irradiation of a graphite target with an 18 MeV proton beam at CNA, to perform a study of the system potential to detect shifts at different intensities. In this sense, the system was able to distinguish 1 mm variations in the target position at different beam current intensities for measurement times of 1800 and 600 s. | Descripción: | © 2023 Associazione Italiana di Fisica Medica e Sanitaria. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | Versión del editor: | https://doi.org/10.1016/j.ejmp.2023.103199 | URI: | http://hdl.handle.net/10261/354965 | DOI: | 10.1016/j.ejmp.2023.103199 | ISSN: | 1120-1797 | E-ISSN: | 1724-191X |
Aparece en las colecciones: | (CNA) Artículos (IFIC) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Gamma-ray_PM_2024_OA.pdf | 3,13 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Page view(s)
34
checked on 07-may-2024
Download(s)
8
checked on 07-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons