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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">     <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"> <head> <title>Workshop on Dust Charging and Beam-Dust Interaction in Particle Accelerators - CERN Document Server</title> <link href='https://framework.web.cern.ch/framework/2.0/fonts/PTSansWeb/PTSansWeb.css' rel='stylesheet' type='text/css' /> <link rel="stylesheet" href="http://cds.cern.ch/img/invenio.css?v=20141127" type="text/css" /> <link rel="stylesheet" href="http://cds.cern.ch/img/cern_theme/css/cern_theme.css?v=20141127" type="text/css" /> <link rel="stylesheet"href="/css/font-awesome.min.css"> <meta http-equiv="X-UA-Compatible" content="IE=Edge"/> <link rel="stylesheet" href="http://cds.cern.ch/img/cern_toolbar/css/toolbar.css" type="text/css" />    <link rel="canonical" href="http://cds.cern.ch/record/2884112" /> <link rel="alternate" hreflang="el" href="http://cds.cern.ch/record/2884112?ln=el" /> <link rel="alternate" hreflang="fr" href="http://cds.cern.ch/record/2884112?ln=fr" /> <link rel="alternate" hreflang="bg" href="http://cds.cern.ch/record/2884112?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="http://cds.cern.ch/record/2884112?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="http://cds.cern.ch/record/2884112?ln=pt" /> <link rel="alternate" hreflang="no" href="http://cds.cern.ch/record/2884112?ln=no" /> <link rel="alternate" hreflang="hr" href="http://cds.cern.ch/record/2884112?ln=hr" /> <link rel="alternate" hreflang="ca" href="http://cds.cern.ch/record/2884112?ln=ca" /> <link rel="alternate" hreflang="de" href="http://cds.cern.ch/record/2884112?ln=de" /> <link rel="alternate" hreflang="it" href="http://cds.cern.ch/record/2884112?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="http://cds.cern.ch/record/2884112?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="http://cds.cern.ch/record/2884112?ln=sv" /> <link rel="alternate" hreflang="sk" href="http://cds.cern.ch/record/2884112?ln=sk" /> <link rel="alternate" hreflang="en" href="http://cds.cern.ch/record/2884112?ln=en" /> <link rel="alternate" hreflang="pl" href="http://cds.cern.ch/record/2884112?ln=pl" /> <link rel="alternate" hreflang="ru" href="http://cds.cern.ch/record/2884112?ln=ru" /> <link rel="alternate" hreflang="ka" href="http://cds.cern.ch/record/2884112?ln=ka" /> <link rel="alternate" hreflang="ja" href="http://cds.cern.ch/record/2884112?ln=ja" /> <link rel="alternate" hreflang="es" href="http://cds.cern.ch/record/2884112?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="/rss?ln=en" /> <link rel="search" type="application/opensearchdescription+xml" href="http://cds.cern.ch/opensearchdescription" title="CERN Document Server" /> <link rel="unapi-server" type="application/xml" title="unAPI" href="http://cds.cern.ch/unapi" /> <link rel="apple-touch-icon" href="/apple-touch-icon.png"/> <link rel="apple-touch-icon-precomposed" href="/apple-touch-icon-precomposed.png"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="en" /> <meta name="description" content="The effects of beam-dust interactions have been observed in particle accelerators and have been studied as early as the 1960s. The goal of this workshop was to: • Improve understanding of beam-dust interactions in particle accelerators, in particular, of dust-charging and release mechanisms. • Improve understanding of evolution of beam-dust interaction rate as a function of beam and other parameters. • Present modelling work on beam-dust interactions and their consequences. • Present research on dust issues in space applications. • Improve understanding of the behaviour of dust particles in accelerator hardware systems (Vacuum, RF, treated surfaces. . . ) and their consequences. • Improve understanding of mechanisms of dust migration into sensitive devices, such as high field gradient superconducting cavities, and ways to prevent this migration. • Identify synergies between particle-accelerator and space-research communities. • Define next research steps and possible collaborations. The workshop was held at CERN, Geneva, Switzerland, from June 13 to 15, 2023. All presentations given during the workshop can be found on the Indico website. In this report, we document the main conclusions and questions discussed during the workshop. Blaszkiewicz, Milosz Robert; Felsberger, Lukas; Hernalsteens, Cedric; Heron, Jack; Obermair, Christoph; Rosaz, Guillaume Jonathan; Schmidt, Rudiger; Uythoven, Jan; Wiesner, Christoph; Wollmann, Daniel; Horanyi, Mihaly; Wang, Xu; Belanger, Philippe" /> <meta name="keywords" content="Particle accelerators, Dust, Beam-dust interaction, Space research, Nuclear fusion, Vacuum, Surface treatment, E-cloud" /> <script type="text/javascript" src="http://cds.cern.ch/js/jquery.min.js"></script>  <link rel="stylesheet" href="http://cds.cern.ch/img/webnews.css" type="text/css" />  <script type="text/javascript" src="http://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 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The goal of this workshop was to: • Improve understanding of beam-dust interactions in particle accelerators, in particular, of dust-charging and release mechanisms. • Improve understanding of evolution of beam-dust interaction rate as a function of beam and other parameters. • Present modelling work on beam-dust interactions and their consequences. • Present research on dust issues in space applications. • Improve understanding of the behaviour of dust particles in accelerator hardware systems (Vacuum, RF, treated surfaces. . . ) and their consequences. • Improve understanding of mechanisms of dust migration into sensitive devices, such as high field gradient superconducting cavities, and ways to prevent this migration. • Identify synergies between particle-accelerator and space-research communities. • Define next research steps and possible collaborations. The workshop was held at CERN, Geneva, Switzerland, from June 13 to 15, 2023. All presentations given during the workshop can be found on the Indico website. In this report, we document the main conclusions and questions discussed during the workshop." property="og:description" />  <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="ATS32Notes search" lang="en">  <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=en&referer=http%3A//cds.cern.ch/record/2884112%3Fln%3Den" 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="http://cds.cern.ch/?ln=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="http://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="http://cds.cern.ch/help/?ln=en">Help</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=en">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=en">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=en">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=en">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=en" class="navtrail">Home</a> > <a href="/collection/Articles%20%26%20Preprints?ln=en" class="navtrail">Articles & Preprints</a> > <a href="/collection/CERN%20Internal%20Notes?ln=en" class="navtrail">CERN Notes</a> > <a href="/collection/ATS%20Notes?ln=en" class="navtrail">Accelerators & Technology Sector Notes</a> > Workshop on Dust Charging and Beam-Dust Interaction in Particle Accelerators </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/2884112/?ln=en">Information </a></li><li class=""><a href="/record/2884112/comments?ln=en">Discussion (0) </a></li><li class=""><a href="/record/2884112/files?ln=en">Files </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="2884112"></abbr>  <link href="/img/download_and_embed_buttons.css" rel="stylesheet" type="text/css" /> <style type="text/css">  .video_talk_wrapper{ max-width: 640px; min-height: 360px; } </style> <table class="formatRecordTableFullWidth"> <tr> <td class="formatRecordHeader" style="background-image: url('/img/journals.jpg');" colspan="2">  Internal Note </td> </tr> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;">CERN-ACC-NOTE-2023-0025</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Workshop on Dust Charging and Beam-Dust Interaction in Particle Accelerators</b></td></tr> <style> .video_control_container, #video_controlbutton { display: none; }#video_detailbox_download {display: none;}#video_detailbox_embed {display: none;}</style> <div class="video_control_container"> <div style="box-sizing: inherit;position: relative;min-height: 1em;margin: 1em 0;background: #f8f8f9;padding: 1em 1.5em;line-height: 1.4285em;transition: opacity .1s ease,color .1s ease,background .1s ease,box-shadow .1s ease,-webkit-box-shadow .1s ease;border-radius: .28571429rem;font-size: 1.1em;margin-top: 0;margin-bottom: 6px;background-color: #f8ffff;color: #276f86;box-shadow: 0 0 0 1px #a9d5de inset,0 0 0 0 transparent;"> <i class="fa fa-info"></i><span style="padding-left: 9px;">If you experience any problem watching the video, click the download button below</span> </div> <a id="video_controlbutton_download" rel="download_button" class="video_controlbutton" href="#">Download</a> <a id="video_controlbutton_embed" class="video_controlbutton" href="#">Embed</a> </div> <div id="video_detailbox_download" style="margin:10px"> </div> <div id="video_detailbox_embed" style="margin:10px"> </div> <tr><td class="formatRecordLabel"> <span style="white-space:nowrap;">Author(s)</span> </td><td style="padding-left:5px;"> <script type="text/javascript"> function toggle_authors_visibility(){ var more = document.getElementById('more'); var link = document.getElementById('link'); var extension = document.getElementById('extension'); if (more.style.display=='none'){ more.style.display = ''; extension.style.display = 'none'; link.innerHTML = "Hide" } else { more.style.display = 'none'; extension.style.display = ''; link.innerHTML = "Show all 13 authors" } link.style.color = "rgb(204,0,0);" } function set_up(){ var extension = document.getElementById('extension'); extension.innerHTML = ""; toggle_authors_visibility(); } </script> <a name="show_hide" /><a href="http://cds.cern.ch/search?f=author&p=Blaszkiewicz%2C%20Milosz%20Robert&ln=en">Blaszkiewicz, Milosz Robert</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Felsberger%2C%20Lukas&ln=en">Felsberger, Lukas</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Hernalsteens%2C%20Cedric&ln=en">Hernalsteens, Cedric</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Heron%2C%20Jack&ln=en">Heron, Jack</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Obermair%2C%20Christoph&ln=en">Obermair, Christoph</a> (Graz University of Technology (AT)) ; <a href="http://cds.cern.ch/search?f=author&p=Rosaz%2C%20Guillaume%20Jonathan&ln=en">Rosaz, Guillaume Jonathan</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Schmidt%2C%20Rudiger&ln=en">Schmidt, Rudiger</a> (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; <a href="http://cds.cern.ch/search?f=author&p=Uythoven%2C%20Jan&ln=en">Uythoven, Jan</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Wiesner%2C%20Christoph&ln=en">Wiesner, Christoph</a> (CERN) ; <a href="http://cds.cern.ch/search?f=author&p=Wollmann%2C%20Daniel&ln=en">Wollmann, Daniel</a> (CERN)<span id="more" style=""> ; <a href="http://cds.cern.ch/search?f=author&p=Horanyi%2C%20Mihaly&ln=en">Horanyi, Mihaly</a> (LASP University of Colorado, Boulder, USA) ; <a href="http://cds.cern.ch/search?f=author&p=Wang%2C%20Xu&ln=en">Wang, Xu</a> (LASP, University of Colorado, Boulder, USA) ; <a href="http://cds.cern.ch/search?f=author&p=Belanger%2C%20Philippe&ln=en">Belanger, Philippe</a> (TRIUMF (CA))</span> <span id="extension"></span> <small><i><a id="link" href="#" onclick="toggle_authors_visibility()" style="color:rgb(204,0,0);"></a></i></small><script type="text/javascript">set_up()</script></td></tr> <tr><td class="formatRecordLabel"> Corporate <span style="white-space:nowrap;">author(s)</span> </td><td style="padding-left:5px;">CERN. Geneva. ATS Department</td></tr> <tr><td class="formatRecordLabel"> Publication </td><td style="padding-left:5px;">2023</td></tr>  <script type="text/javascript"> /* * Changes the Imprint title to Date - Duration as requested by RQF0820114 * This is a hack not to touch the general imprint format element */ $(document).ready(function() { var collections = 'INTNOTEATSPUBL ; NOTE ; TECHNOTE'; if (collections.indexOf('E-LEARNING') > -1) { $('.cern-imprint-label').text('Date - Duration'); } }) </script> <tr><td class="formatRecordLabel cern-imprint-label"> Imprint </td><td style="padding-left:5px;">10 Dec 2023</td></tr>  <tr><td class="formatRecordLabel"> Subject category </td><td style="padding-left:5px;">Accelerators and Storage Rings</td></tr> <tr><td class="formatRecordLabel"> Accelerator/Facility, Experiment </td><td style="padding-left:5px;"><a href="http://cds.cern.ch/search?p=CERN%20LHC&f=693__a">CERN LHC</a></td></tr> <tr><td class="formatRecordLabel"> Keywords </td><td style="padding-left:5px;"><a href="http://cds.cern.ch/search?f=keyword&p=Particle%20accelerators&ln=en">Particle accelerators</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Dust&ln=en">Dust</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Beam-dust%20interaction&ln=en">Beam-dust interaction</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Space%20research&ln=en">Space research</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Nuclear%20fusion&ln=en">Nuclear fusion</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Vacuum&ln=en">Vacuum</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=Surface%20treatment&ln=en">Surface treatment</a> ; <a href="http://cds.cern.ch/search?f=keyword&p=E-cloud&ln=en">E-cloud</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">The effects of beam-dust interactions have been observed in particle accelerators and have been studied as early as the 1960s. The goal of this workshop was to: • Improve understanding of beam-dust interactions in particle accelerators, in particular, of dust-charging and release mechanisms. • Improve understanding of evolution of beam-dust interaction rate as a function of beam and other parameters. • Present modelling work on beam-dust interactions and their consequences. • Present research on dust issues in space applications. • Improve understanding of the behaviour of dust particles in accelerator hardware systems (Vacuum, RF, treated surfaces. . . ) and their consequences. • Improve understanding of mechanisms of dust migration into sensitive devices, such as high field gradient superconducting cavities, and ways to prevent this migration. • Identify synergies between particle-accelerator and space-research communities. • Define next research steps and possible collaborations. The workshop was held at CERN, Geneva, Switzerland, from June 13 to 15, 2023. All presentations given during the workshop can be found on the Indico website. In this report, we document the main conclusions and questions discussed during the workshop.</td></tr> <tr><td class="formatRecordLabel"> Submitted by </td><td style="padding-left:5px;"><a href="mailto:claudia.dupraz@cern.ch">claudia.dupraz@cern.ch</a></td></tr> </table> <br/><div><div style="clear: both;"> </div></div> <script type="text/javascript"> // Initially hide: $(".longCaption").hide(); // Allow to toggle visibility: $(".toggleLongCaption").toggle(function(){ $(this).siblings(".longCaption").show('fast'); var thisElem = $(this); thisElem.text(thisElem.text() === "more" ? "less" : "more"); },function(){ $(this).siblings(".longCaption").hide('fast'); var thisElem = $(this); thisElem.text(thisElem.text() === "more" ? 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The goal of this workshop was to: \u2022 Improve understanding of beam-dust interactions in particle accelerators, in particular, of dust-charging and release mechanisms. \u2022 Improve understanding of evolution of beam-dust interaction rate as a function of beam and other parameters. \u2022 Present modelling work on beam-dust interactions and their consequences. \u2022 Present research on dust issues in space applications. \u2022 Improve understanding of the behaviour of dust particles in accelerator hardware systems (Vacuum, RF, treated surfaces. . . ) and their consequences. \u2022 Improve understanding of mechanisms of dust migration into sensitive devices, such as high field gradient superconducting cavities, and ways to prevent this migration. \u2022 Identify synergies between particle-accelerator and space-research communities. \u2022 Define next research steps and possible collaborations. The workshop was held at CERN, Geneva, Switzerland, from June 13 to 15, 2023. All presentations given during the workshop can be found on the Indico website. In this report, we document the main conclusions and questions discussed during the workshop." }); // ]]> </script>  </div> </div> <div style="clear:both;margin-bottom: 0;"></div> </div> <div class="bottom-left"></div><div class="bottom-right"></div> </div> </div></div> <footer id="footer" class="pagefooter clearfix">  <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="http://cds.cern.ch/?ln=en">Search</a> :: <a class="footer" href="http://cds.cern.ch/submit?ln=en">Submit</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=en">Personalize</a> :: <a class="footer" href="http://cds.cern.ch/help/?ln=en">Help</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> :: <a class="footer" href="https://repository.cern/content-policy" target="_blank">Content Policy</a> :: <a class="footer" href="https://repository.cern/terms" target="_blank">Terms and Conditions</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Maintained by <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? 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