Updated analysis of beam halo measurements in LHC Run 2 and Run 3

<!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="bg" xml:lang="bg" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"> <head> <title>Updated analysis of beam halo measurements in LHC Run 2 and Run 3 - 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="https://cds.cern.ch/img/invenio.css?v=20141127" type="text/css" /> <link rel="stylesheet" href="https://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="https://cds.cern.ch/img/cern_toolbar/css/toolbar.css" type="text/css" />    <link rel="canonical" href="https://cds.cern.ch/record/2912710/files/" /> <link rel="alternate" hreflang="el" href="https://cds.cern.ch/record/2912710/files/?ln=el" /> <link rel="alternate" hreflang="fr" href="https://cds.cern.ch/record/2912710/files/?ln=fr" /> <link rel="alternate" hreflang="bg" href="https://cds.cern.ch/record/2912710/files/?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="https://cds.cern.ch/record/2912710/files/?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="https://cds.cern.ch/record/2912710/files/?ln=pt" /> <link rel="alternate" hreflang="no" href="https://cds.cern.ch/record/2912710/files/?ln=no" /> <link rel="alternate" hreflang="hr" href="https://cds.cern.ch/record/2912710/files/?ln=hr" /> <link rel="alternate" hreflang="ca" href="https://cds.cern.ch/record/2912710/files/?ln=ca" /> <link rel="alternate" hreflang="de" href="https://cds.cern.ch/record/2912710/files/?ln=de" /> <link rel="alternate" hreflang="it" href="https://cds.cern.ch/record/2912710/files/?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="https://cds.cern.ch/record/2912710/files/?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="https://cds.cern.ch/record/2912710/files/?ln=sv" /> <link rel="alternate" hreflang="sk" href="https://cds.cern.ch/record/2912710/files/?ln=sk" /> <link rel="alternate" hreflang="en" href="https://cds.cern.ch/record/2912710/files/?ln=en" /> <link rel="alternate" hreflang="pl" href="https://cds.cern.ch/record/2912710/files/?ln=pl" /> <link rel="alternate" hreflang="ru" href="https://cds.cern.ch/record/2912710/files/?ln=ru" /> <link rel="alternate" hreflang="ka" href="https://cds.cern.ch/record/2912710/files/?ln=ka" /> <link rel="alternate" hreflang="ja" href="https://cds.cern.ch/record/2912710/files/?ln=ja" /> <link rel="alternate" hreflang="es" href="https://cds.cern.ch/record/2912710/files/?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="https://cds.cern.ch/rss" /> <link rel="search" type="application/opensearchdescription+xml" href="https://cds.cern.ch/opensearchdescription" title="CERN Document Server" /> <link rel="unapi-server" type="application/xml" title="unAPI" href="https://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="bg" /> <meta name="description" content="Measurements of the transverse beam halo in the Large Hadron Collider (LHC) provide crucial input for the performance evaluation of the collimation configuration in the High-Luminosity LHC (HL-LHC) era. Such measurements are carried out in various phases of the LHC operational cycle by scraping the beam with movable collimators. Understanding the halo population and halo formation mechanisms is crucial for optimising accelerator performance. Analysis of collimator scan data allows the evaluation of future needs for active halo depletion mechanisms at the HL-LHC, or other ways of mitigating halo-related risks to machine availability and protection. This contribution analyses the LHC Run 2 (2015-2018) and Run 3 (started in 2022) measurements using measured bunch-by-bunch beam intensity data. Different beam parameters are explored by profiting from upgraded beam parameters in the LHC injector complex. Rakic, Milica; Salvachua, Belen; Montanari, Carlo Emilio; Mirarchi, Daniele; Paraschou, Konstantinos; Giovannozzi, Massimo; Hermes, Pascal; Morales Vigo, Sara; Redaelli, Stefano" /> <meta name="keywords" content="bunching, collimation, emittance, collider, operation, proton" /> <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"/> <style></style> </head> <body class="search" lang="bg">  <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=bg&referer=https%3A//cds.cern.ch/record/2912710/files/%3Fln%3Dbg" 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=bg">Търсене</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=bg">Изпращане</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=bg">Помощ</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=bg">Персонализиране</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=bg">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=bg">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=bg">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=bg">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=bg" class="navtrail">Начало</a> > > <a class="navtrail" href="https://cds.cern.ch/record/2912710">Updated analysis of beam halo measurements in LHC Run 2 and Run 3</a> > Достъп до пълния текст </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <div class="detailedrecordbox"> <div class="detailedrecordtabs"> <div> <ul class="detailedrecordtabs"><li class="first"><a href="https://cds.cern.ch/record/2912710/?ln=bg">Информация </a></li><li class="on"><a href="https://cds.cern.ch/record/2912710/files?ln=bg">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">  <div id="detailedrecordshortreminder"> <div id="clip"> </div> <div id="HB"> <strong><a href="/record/2912710?ln=bg">Updated analysis of beam halo measurements in LHC Run 2 and Run 3</a></strong> - <a href="/search?f=author&p=Rakic%2C%20Milica&ln=bg">Rakic, Milica</a> <em>et al</em> </div> </div> <div style="clear:both;height:1px"> </div> <div style="width:90%;margin:auto;min-height:100px;margin-top:10px">  <small><b>Main</b> файл(а):</small><ul><table border="0" cellspacing="1" class="searchbox"> <tr> <td align="left" colspan="2" class="portalboxheader"> <img src='https://cds.cern.ch/img/smallfiles.gif' border="0" />  document </td> </tr><tr> <td class="portalboxheader"> <font size="-2">версия 1</font> </td> <td> <table> <tr> <td valign="top"> <small><a href="https://cds.cern.ch/record/2912710/files/document.pdf?version=1">document.pdf</a></small> </td> <td valign="top"> <font size="-2" color="green">[1.83 MB]</font> <font size="-2"><em>08 Окт 2024, 07:54</em> </td> <td valign="top"><em>Fulltext</em></td> </tr></table></td></tr></table></ul> </div> <div class="bottom-left-folded"></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=bg&p=recid%3A2912710&rm=wrd" class="moreinfo">Подобни записи</a></span></div> </div> </div> </div> <br/> </div></div> <footer id="footer" class="pagefooter clearfix">  <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="https://cds.cern.ch/?ln=bg">Търсене</a> :: <a class="footer" href="https://cds.cern.ch/submit?ln=bg">Изпращане</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=bg">Персонализиране</a> :: <a class="footer" href="https://cds.cern.ch/help/?ln=bg">Помощ</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 /> Поддръжка от <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - 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Updated analysis of beam halo measurements in LHC Run 2 and Run 3 - CERN Document Server