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The features simultaneously required are a short readout time, high granularity and high tolerance to radiation. This thesis mainly focuses on the radiation tolerance studies. To achieve the targeted readout time (tens of microseconds), the sensor pixel readout was organized in parallel columns restricting in addition the readout to pixels that had collected the signal charge. The pixels became then more complex, and consequently more sensitive to radiation. Different in-pixel architectures were studied and it was concluded that the tolerance to ionizing radiation was limited to 300 krad with the 0.35- m fabrication process currently used, while the targeted value was several Mrad. Improving this situation calls for implementation of the sensors in processes with a smaller feature size which naturally improve the radiation tolerance while simultaneously accommodate all the inpixel microcircuitry in small pixels. Another aspect addressed in this thesis was the tolerance to non ionizing radiation, with a targeted value of >1013 neq/cm2. Different CMOS technologies featuring an enhanced signal collection were therefore investigated. It was demonstrated that this tolerance could be improved to 3·1013 neq/cm2 by the means of a high-resistivity epitaxial layer. This achievement triggered a new age of the CMOS pixel sensors and showed that their development is on a good track to meet the requirements of the particularly demanding CBM experiment. Koziel, Michal" /> <meta name="keywords" content="CERN Document Server, WebSearch, CERN Document Server" /> <script type="text/javascript" src="https://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="https://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="https://cds.cern.ch/js/webnews.js?v=20131009"></script> <meta property="fb:app_id" content="137353533001720"/> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ tex2jax: {inlineMath: [['$','$']], processEscapes: true}, showProcessingMessages: false, messageStyle: "none" }); </script> <script src="/MathJax/MathJax.js?config=TeX-AMS_CHTML" type="text/javascript"> </script>  <meta content="Development of radiation hardened pixel sensors for charged particle detection" name="citation_title" /> <meta content="Koziel, Michal" name="citation_author" /> <meta content="2011/09/26" name="citation_publication_date" /> <meta name="citation_online_date" content="2014/07/10"> <meta content="EuCARD-BOO-2014-008" name="citation_technical_report_number" /> <meta content="CERN-ACC-2014-0090" name="citation_technical_report_number" /> <meta content="Strasbourg, IPHC" name="citation_dissertation_institution" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.pdf" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/1742056/files/EuCARD-BOO-2014-008.pdf" />  <meta content="Development of radiation hardened pixel sensors for charged particle detection" property="og:title" /> <meta content="Développement de capteurs à pixels résistants aux rayonnements intenses pour la détection de particules chargées" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/1742056" property="og:url" /> <meta name="twitter:image" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.jpg?subformat=icon-" /> <meta property="og:image" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.jpg?subformat=icon-" /> <meta property="og:image:secure_url" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.jpg?subformat=icon-" /> <meta property="og:image" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.gif?subformat=icon" /> <meta property="og:image:secure_url" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.gif?subformat=icon" /> <meta property="og:image" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.jpg?subformat=icon-" /> <meta property="og:image:secure_url" content="https://cds.cern.ch/record/1742056/files/CERN-ACC-2014-0090.jpg?subformat=icon-" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="CMOS Pixel Sensors are being developed since a few years to equip vertex detectors for future high-energy physics experiments with the crucial advantages of a low material budget and low production costs. The features simultaneously required are a short readout time, high granularity and high tolerance to radiation. This thesis mainly focuses on the radiation tolerance studies. To achieve the targeted readout time (tens of microseconds), the sensor pixel readout was organized in parallel columns restricting in addition the readout to pixels that had collected the signal charge. The pixels became then more complex, and consequently more sensitive to radiation. Different in-pixel architectures were studied and it was concluded that the tolerance to ionizing radiation was limited to 300 krad with the 0.35- m fabrication process currently used, while the targeted value was several Mrad. Improving this situation calls for implementation of the sensors in processes with a smaller feature size which naturally improve the radiation tolerance while simultaneously accommodate all the inpixel microcircuitry in small pixels. Another aspect addressed in this thesis was the tolerance to non ionizing radiation, with a targeted value of &gt;1013 neq/cm2. Different CMOS technologies featuring an enhanced signal collection were therefore investigated. It was demonstrated that this tolerance could be improved to 3·1013 neq/cm2 by the means of a high-resistivity epitaxial layer. This achievement triggered a new age of the CMOS pixel sensors and showed that their development is on a good track to meet the requirements of the particularly demanding CBM experiment." property="og:description" />  <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="es">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accelerating science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=es&referer=https%3A//cds.cern.ch/record/1742056%3Fln%3Des" title="Sign in to your CERN account">Sign in</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Directory</a></li> </ul> </div>   <div role="banner" class="clearfix" id="header"> <div class="header-inner inner"> <hgroup class="clearfix"> <h2 id="site-name"> <a rel="home" title="Home" href="/"><span>CERN Document Server</span></a> </h2> <h3 id="site-slogan">Access articles, reports and multimedia content in HEP</h3> </hgroup> <div role="navigation" id="main-navigation" class="cdsmenu"> <h2 class="element-invisible">Main menu</h2><ul class="links inline clearfix"> <li class="menu-386 first active-trail"><a class="active-trail" href="https://cds.cern.ch/?ln=es">Buscar</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=es">Enviar</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=es">Ayuda</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=es">Personalizar</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=es">Sus alertas</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=es">Sus cestas</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=es">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=es">Sus búsquedas</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=es" class="navtrail">Página principal</a> > Development of radiation hardened pixel sensors for charged particle detection </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="on first"><a href="/record/1742056/?ln=es">Información: </a></li><li class=""><a href="/record/1742056/files?ln=es">Ficheros </a></li></ul> <div id="tabsSpacer" style="clear:both;height:0px"> </div></div> </div> <div class="detailedrecordboxcontent"> <div class="top-left-folded"></div> <div class="top-right-folded"></div> <div class="inside">  <abbr class="unapi-id" title="1742056"></abbr> <style type="text/css">  </style> <script type="text/javascript" src="/js/pdf-previewer-append-to-table.js"></script> <table class="formatRecordTableFullWidth" > <tr> <td class="formatRecordHeader" style="background-image: url('https://cds.cern.ch/img/journals.jpg');" colspan="2"> Thesis </td> </tr> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;">EuCARD-BOO-2014-008 ; CERN-ACC-2014-0090</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Development of radiation hardened pixel sensors for charged particle detection</b></td></tr> <tr><td class="formatRecordLabel" style="vertical-align:top;">Related title</td><td style="padding-left:5px; ">Développement de capteurs à pixels résistants aux rayonnements intenses pour la détection de particules chargées<br/></td></tr> <tr><td class="formatRecordLabel"><span style="white-space:nowrap;">Author(s)</span> </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=author&p=Koziel%2C%20Michal&ln=es">Koziel, Michal</a> (Strasbourg, IPHC)</td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2014 - 239.</td></tr> <tr><td class="formatRecordLabel"> Series </td><td style="padding-left:5px;">(<a href="/search?f=490__a&p=EuCARD%20monograph">EuCARD monograph</a> ; 26)</td></tr> <tr><td class="formatRecordLabel"> Thesis note </td><td style="padding-left:5px;">PhD : U. Strasbourg : 2011</td></tr> <tr><td class="formatRecordLabel"> Thesis supervisor(s) </td><td style="padding-left:5px;"><a href="/search?f=author&p=Winter, Marc">Winter, Marc</a></td></tr> <tr><td class="formatRecordLabel"> Note </td><td style="padding-left:5px;">presented 26 Sept 2011</td></tr> <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Accelerators and Storage Rings ; 1: Management and Communication (MANCOM) ; 1.3: Scientific publications and monographs ; 2: DCO: Dissemination, Communication & Outreach</td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">CMOS Pixel Sensors are being developed since a few years to equip vertex detectors for future high-energy physics experiments with the crucial advantages of a low material budget and low production costs. The features simultaneously required are a short readout time, high granularity and high tolerance to radiation. This thesis mainly focuses on the radiation tolerance studies. To achieve the targeted readout time (tens of microseconds), the sensor pixel readout was organized in parallel columns restricting in addition the readout to pixels that had collected the signal charge. The pixels became then more complex, and consequently more sensitive to radiation. Different in-pixel architectures were studied and it was concluded that the tolerance to ionizing radiation was limited to 300 krad with the 0.35- m fabrication process currently used, while the targeted value was several Mrad. Improving this situation calls for implementation of the sensors in processes with a smaller feature size which naturally improve the radiation tolerance while simultaneously accommodate all the inpixel microcircuitry in small pixels. Another aspect addressed in this thesis was the tolerance to non ionizing radiation, with a targeted value of >1013 neq/cm2. Different CMOS technologies featuring an enhanced signal collection were therefore investigated. It was demonstrated that this tolerance could be improved to 3·1013 neq/cm2 by the means of a high-resistivity epitaxial layer. This achievement triggered a new age of the CMOS pixel sensors and showed that their development is on a good track to meet the requirements of the particularly demanding CBM experiment.</td></tr> </table> <br/>Email contact: <a href="mailto:thomas.hind@cern.ch">thomas.hind@cern.ch</a> ; <a href="mailto:ryszard.romaniuk@cern.ch">ryszard.romaniuk@cern.ch</a> <small> </small> <small> </small> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Volver a la búsqueda</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> Registro creado el 2014-07-10, última modificación el 2019-06-03</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=es&p=recid%3A1742056&rm=wrd" class="moreinfo">Registros similares</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">Texto completo:</small> <br /><em>EuCARD-BOO-2014-008</em> - <a href="/record/1742056/files/EuCARD-BOO-2014-008.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Descargar el texto completo"/>PDF</a><br /><em>CERN-ACC-2014-0090</em> - <a href="/record/1742056/files/CERN-ACC-2014-0090.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Descargar el texto completo"/>PDF</a><br /></div> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=es&recid=1742056">Añadir a la cesta personal</a></li> <li>Exportar como <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/hx?ln=es">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/hm?ln=es">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/xm?ln=es">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/xd?ln=es">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/xe?ln=es">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/xn?ln=es">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1742056/export/xw?ln=es">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:1742056/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/1742056', addEmail: true, title: "Development of radiation hardened pixel sensors for charged particle detection", description: "CMOS Pixel Sensors are being developed since a few years to equip vertex detectors for future high-energy physics experiments with the crucial advantages of a low material budget and low production costs. The features simultaneously required are a short readout time, high granularity and high tolerance to radiation. This thesis mainly focuses on the radiation tolerance studies. To achieve the targeted readout time (tens of microseconds), the sensor pixel readout was organized in parallel columns restricting in addition the readout to pixels that had collected the signal charge. The pixels became then more complex, and consequently more sensitive to radiation. Different in-pixel architectures were studied and it was concluded that the tolerance to ionizing radiation was limited to 300 krad with the 0.35- \uf06dm fabrication process currently used, while the targeted value was several Mrad. Improving this situation calls for implementation of the sensors in processes with a smaller feature size which naturally improve the radiation tolerance while simultaneously accommodate all the inpixel microcircuitry in small pixels. 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