Electronic stopping power of diamond for electrons and positrons

<p>We assess a new data set of mass electronic stopping powers of diamond for electrons and positrons.</p><p>To this end, an optical energy-loss function (OELF) for this material is generated from available</p><p>experimental dielectric properties of the valence band an...

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Detalles Bibliográficos
Autores: Fernández Varea, José María, Górka, Bartosz, Nilsson, Bo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/226408
Acceso en línea:https://hdl.handle.net/2445/226408
Access Level:acceso abierto
Palabra clave:Electrons
Electrònica
Interaccions electró-positró
Electrones
Electronics
Electron-positron interactions
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spelling Electronic stopping power of diamond for electrons and positronsFernández Varea, José MaríaGórka, BartoszNilsson, BoElectronsElectrònicaInteraccions electró-positróElectronesElectronicsElectron-positron interactions<p>We assess a new data set of mass electronic stopping powers of diamond for electrons and positrons.</p><p>To this end, an optical energy-loss function (OELF) for this material is generated from available</p><p>experimental dielectric properties of the valence band and photoabsorption mass attenuation</p><p>coefficients, supplemented with a Drude-type analytical expression to interpolate at intermediate</p><p>energies. From this synthetic OELF, a mean excitation energy equal to (88.5±2.0) eV is extracted and</p><p>the density-effect correction is evaluated using Fano’s simplified method. These quantities then allow</p><p>calculating the mass electronic stopping power of diamond for electrons and positrons by means of</p><p>the relativistic Bethe formula. The present results for 1 keV–1 GeV electrons in diamond are 0.9%–</p><p>3.3% smaller than those corresponding to graphite as tabulated in ICRU Report 90.</p>ART AMB B2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/226408Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: https://doi.org/10.1088/1361-6560/ac1245Physics in Medicine and Biology, 2021, vol. 66, p. 165003-1-165003-13https://doi.org/10.1088/1361-6560/ac1245(c) ART AMB B, 2021info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2264082026-05-27T06:46:51Z
dc.title.none.fl_str_mv Electronic stopping power of diamond for electrons and positrons
title Electronic stopping power of diamond for electrons and positrons
spellingShingle Electronic stopping power of diamond for electrons and positrons
Fernández Varea, José María
Electrons
Electrònica
Interaccions electró-positró
Electrones
Electronics
Electron-positron interactions
title_short Electronic stopping power of diamond for electrons and positrons
title_full Electronic stopping power of diamond for electrons and positrons
title_fullStr Electronic stopping power of diamond for electrons and positrons
title_full_unstemmed Electronic stopping power of diamond for electrons and positrons
title_sort Electronic stopping power of diamond for electrons and positrons
dc.creator.none.fl_str_mv Fernández Varea, José María
Górka, Bartosz
Nilsson, Bo
author Fernández Varea, José María
author_facet Fernández Varea, José María
Górka, Bartosz
Nilsson, Bo
author_role author
author2 Górka, Bartosz
Nilsson, Bo
author2_role author
author
dc.subject.none.fl_str_mv Electrons
Electrònica
Interaccions electró-positró
Electrones
Electronics
Electron-positron interactions
topic Electrons
Electrònica
Interaccions electró-positró
Electrones
Electronics
Electron-positron interactions
description <p>We assess a new data set of mass electronic stopping powers of diamond for electrons and positrons.</p><p>To this end, an optical energy-loss function (OELF) for this material is generated from available</p><p>experimental dielectric properties of the valence band and photoabsorption mass attenuation</p><p>coefficients, supplemented with a Drude-type analytical expression to interpolate at intermediate</p><p>energies. From this synthetic OELF, a mean excitation energy equal to (88.5±2.0) eV is extracted and</p><p>the density-effect correction is evaluated using Fano’s simplified method. These quantities then allow</p><p>calculating the mass electronic stopping power of diamond for electrons and positrons by means of</p><p>the relativistic Bethe formula. The present results for 1 keV–1 GeV electrons in diamond are 0.9%–</p><p>3.3% smaller than those corresponding to graphite as tabulated in ICRU Report 90.</p>
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/226408
url https://hdl.handle.net/2445/226408
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1088/1361-6560/ac1245
Physics in Medicine and Biology, 2021, vol. 66, p. 165003-1-165003-13
https://doi.org/10.1088/1361-6560/ac1245
dc.rights.none.fl_str_mv (c) ART AMB B, 2021
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) ART AMB B, 2021
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ART AMB B
publisher.none.fl_str_mv ART AMB B
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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