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A Large Area GEMPix detector for treatment plan verification in hadron therapy

Quality Assurance in hadron therapy is crucial to ensure a safe and accurate dose delivery to the patients. This requires fast and reliable detectors with high spatial resolution. A first LaGEMPix prototype that combines a triple Gas Electron Multiplier and a highly pixelated readout based on a matr...

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Autores principales: Oliveira, Andreia Maia, Akkerman, Hylke B, Braccini, Saverio, van Breemen, Albert J J M, Manzano, Lucia Gallego, Heracleous, Natalie, Katsouras, Ilias, Leidner, Johannes, Murtas, Fabrizio, Peeters, Bart, Silari, Marco
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/2374/1/012177
http://cds.cern.ch/record/2846165
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author Oliveira, Andreia Maia
Akkerman, Hylke B
Braccini, Saverio
van Breemen, Albert J J M
Manzano, Lucia Gallego
Heracleous, Natalie
Katsouras, Ilias
Leidner, Johannes
Murtas, Fabrizio
Peeters, Bart
Silari, Marco
author_facet Oliveira, Andreia Maia
Akkerman, Hylke B
Braccini, Saverio
van Breemen, Albert J J M
Manzano, Lucia Gallego
Heracleous, Natalie
Katsouras, Ilias
Leidner, Johannes
Murtas, Fabrizio
Peeters, Bart
Silari, Marco
author_sort Oliveira, Andreia Maia
collection CERN
description Quality Assurance in hadron therapy is crucial to ensure a safe and accurate dose delivery to the patients. This requires fast and reliable detectors with high spatial resolution. A first LaGEMPix prototype that combines a triple Gas Electron Multiplier and a highly pixelated readout based on a matrix of organic photodiodes coated on an oxide thin film transistor backplane has been built. The first version of the LaGEMPix has proven to have a limited spatial resolution, mainly attributed to the isotropic emission of the scintillation photons within the GEM holes. To improve the spatial resolution and confirm our predictions of the role of the photons, we built a new version of the detector with a reduced gap between the last GEM foil and the readout. Experimental results acquired using different methods and experimental set-ups show that the spatial resolution significantly improved with the new design.
id cern-2846165
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28461652023-01-14T22:17:44Zdoi:10.1088/1742-6596/2374/1/012177http://cds.cern.ch/record/2846165engOliveira, Andreia MaiaAkkerman, Hylke BBraccini, Saveriovan Breemen, Albert J J MManzano, Lucia GallegoHeracleous, NatalieKatsouras, IliasLeidner, JohannesMurtas, FabrizioPeeters, BartSilari, MarcoA Large Area GEMPix detector for treatment plan verification in hadron therapyDetectors and Experimental TechniquesQuality Assurance in hadron therapy is crucial to ensure a safe and accurate dose delivery to the patients. This requires fast and reliable detectors with high spatial resolution. A first LaGEMPix prototype that combines a triple Gas Electron Multiplier and a highly pixelated readout based on a matrix of organic photodiodes coated on an oxide thin film transistor backplane has been built. The first version of the LaGEMPix has proven to have a limited spatial resolution, mainly attributed to the isotropic emission of the scintillation photons within the GEM holes. To improve the spatial resolution and confirm our predictions of the role of the photons, we built a new version of the detector with a reduced gap between the last GEM foil and the readout. Experimental results acquired using different methods and experimental set-ups show that the spatial resolution significantly improved with the new design.oai:cds.cern.ch:28461652022
spellingShingle Detectors and Experimental Techniques
Oliveira, Andreia Maia
Akkerman, Hylke B
Braccini, Saverio
van Breemen, Albert J J M
Manzano, Lucia Gallego
Heracleous, Natalie
Katsouras, Ilias
Leidner, Johannes
Murtas, Fabrizio
Peeters, Bart
Silari, Marco
A Large Area GEMPix detector for treatment plan verification in hadron therapy
title A Large Area GEMPix detector for treatment plan verification in hadron therapy
title_full A Large Area GEMPix detector for treatment plan verification in hadron therapy
title_fullStr A Large Area GEMPix detector for treatment plan verification in hadron therapy
title_full_unstemmed A Large Area GEMPix detector for treatment plan verification in hadron therapy
title_short A Large Area GEMPix detector for treatment plan verification in hadron therapy
title_sort large area gempix detector for treatment plan verification in hadron therapy
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1742-6596/2374/1/012177
http://cds.cern.ch/record/2846165
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