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A diamond guard ring microdosimeter for ion beam therapy

hal.structure.identifierLaboratoire d'Intégration des Systèmes et des Technologies [LIST (CEA)]
dc.contributor.authorZAHRADNIK, I.A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorBARBERET, P.
hal.structure.identifierLaboratoire d'Intégration des Systèmes et des Technologies [LIST (CEA)]
dc.contributor.authorTROMSON, D.
hal.structure.identifierInstitut Curie [Paris]
dc.contributor.authorMARZI, L.De
hal.structure.identifierLaboratoire d'Intégration des Systèmes et des Technologies [LIST (CEA)]
dc.contributor.authorPOMORSKI, M.T.
dc.date.issued2020
dc.description.abstractEnA single crystal chemical vapor deposition diamond-based microdosimeter prototype featuring an array of micro-sensitive volumes (μSVs) and surrounded by a so-called guard ring (GR) electrode has been fabricated using various microfabrication techniques available at Diamond Sensors Laboratory of CEA, Saclay. The GR microdosimeter was irradiated by a raster scanning method with 2 MeV proton microbeams. The charge transport properties of the GR sensor were determined with sub-micron spatial resolution by measuring the charge collection efficiency (CCE), the μSV geometry, and the pulse-height spectra. The response of the microdosimeter showed a well-defined and homogeneously active μSV. Appropriate biasing of the μSV structures led toward a full CCE for protons with lineal energies of ∼46 keV/μm. This shows the GR microdosimeter’s great potential for applications in microdosimetry in clinical beam conditions.
dc.language.isoen
dc.title.enA diamond guard ring microdosimeter for ion beam therapy
dc.typeArticle de revue
dc.identifier.doi10.1063/5.0002403
dc.subject.halPhysique [physics]
bordeaux.journalRev.Sci.Instrum.
bordeaux.page054102
bordeaux.volume91
bordeaux.issue5
bordeaux.peerReviewedoui
hal.identifierhal-02863166
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02863166v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Rev.Sci.Instrum.&rft.date=2020&rft.volume=91&rft.issue=5&rft.spage=054102&rft.epage=054102&rft.au=ZAHRADNIK,%20I.A.&BARBERET,%20P.&TROMSON,%20D.&MARZI,%20L.De&POMORSKI,%20M.T.&rft.genre=article


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