Achievements and Performance Prospects of the Upgraded LHC Injectors

<!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="fr" xml:lang="fr" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"> <head> <title>Achievements and Performance Prospects of the Upgraded LHC Injectors - 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/2845730/files/" /> <link rel="alternate" hreflang="el" href="http://cds.cern.ch/record/2845730/files/?ln=el" /> <link rel="alternate" hreflang="fr" href="http://cds.cern.ch/record/2845730/files/?ln=fr" /> <link rel="alternate" hreflang="bg" href="http://cds.cern.ch/record/2845730/files/?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="http://cds.cern.ch/record/2845730/files/?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="http://cds.cern.ch/record/2845730/files/?ln=pt" /> <link rel="alternate" hreflang="no" href="http://cds.cern.ch/record/2845730/files/?ln=no" /> <link rel="alternate" hreflang="hr" href="http://cds.cern.ch/record/2845730/files/?ln=hr" /> <link rel="alternate" hreflang="ca" href="http://cds.cern.ch/record/2845730/files/?ln=ca" /> <link rel="alternate" hreflang="de" href="http://cds.cern.ch/record/2845730/files/?ln=de" /> <link rel="alternate" hreflang="it" href="http://cds.cern.ch/record/2845730/files/?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="http://cds.cern.ch/record/2845730/files/?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="http://cds.cern.ch/record/2845730/files/?ln=sv" /> <link rel="alternate" hreflang="sk" href="http://cds.cern.ch/record/2845730/files/?ln=sk" /> <link rel="alternate" hreflang="en" href="http://cds.cern.ch/record/2845730/files/?ln=en" /> <link rel="alternate" hreflang="pl" href="http://cds.cern.ch/record/2845730/files/?ln=pl" /> <link rel="alternate" hreflang="ru" href="http://cds.cern.ch/record/2845730/files/?ln=ru" /> <link rel="alternate" hreflang="ka" href="http://cds.cern.ch/record/2845730/files/?ln=ka" /> <link rel="alternate" hreflang="ja" href="http://cds.cern.ch/record/2845730/files/?ln=ja" /> <link rel="alternate" hreflang="es" href="http://cds.cern.ch/record/2845730/files/?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="http://cds.cern.ch/rss" /> <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="fr" /> <meta name="description" content="To provide HL-LHC performance, the CERN LHC injector chain underwent a major upgrade during an almost 2-year-long shutdown. In the first half of 2021 the injectors were gradually re-started with the aim to reach at least pre-shutdown parameters for LHC as well as for fixed target beams. The strategy of the commissioning across the complex, a summary of the many challenges and finally the achievements will be presented. Several lessons were learned and have been integrated to define the strategy for the performance ramp-up over the coming years. Remaining limitations and prospects for LHC beam parameters at the exit of the LHC injector chain in the years to come will be discussed. Finally, the emerging need for improved operability of the CERN complex will be addressed, with a description of the first efforts to meet the availability and flexibility requirements of the HL-LHC era while at the same time maximizing fixed target physics output. Kain, Verena; Albright, Simon; Alemany-Fernández, Reyes; Angoletta, Maria Elena; Antoniou, Fanouria; Argyropoulos, Theodoros; Asvesta, Foteini; Balhan, Bruno; Barnes, Michael; Barrientos, Diego; Bartosik, Hannes; Baudrenghien, Philippe; Bellodi, Giulia; Biancacci, Nicolo; Boccardi, Andrea; Borburgh, Jan; Bracco, Chiara; Carlier, Etienne; Cotte, Denis; Coupard, Julie; Damerau, Heiko; Di Giovanni, Gian Piero; Findlay, Alan; Fraser, Matthew; Funken, Anne; Goddard, Brennan; Hagmann, Gregoire; Hanke, Klaus; Huschauer, Alexander; Jaussi, Michael; Karpov, Ivan; Koevener, Toke; Küchler, Detlef; Lallement, Jean-Baptiste; Lasheen, Alexandre; Levens, Thomas; Li, Kevin; Lombardi, Alessandra; Madysa, Nico; Mahner, Edgar; Meddahi, Malika; Mether, Lotta; Mikulec, Bettina; Molendijk, John; Montesinos, Eric; Nisbet, David; Nuiry, Francois-Xavier; Papotti, Giulia; Paraschou, Konstantinos; Pedrosa, Fernando; Prebibaj, Tirsi; Prodon, Sylvie; Quartullo, Danilo; Renner, Elisabeth; Roncarolo, Federico; Rumolo, Giovanni; Salvant, Benoit; Schenk, Michael; Scrivens, Richard; Shaposhnikova, Elena; Skowroński, Piotr; Spierer, Arthur; Tecker, Frank; Valuch, Daniel; Velotti, Francesco; Wegner, Rolf; Zannini, Carlo" /> <meta name="keywords" content="MMI, injection, brightness, proton, kicker" /> <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"/> <style></style> </head> <body class="search" lang="fr">  <div id="cern-toolbar"> <h1><a href="http://cern.ch" title="CERN">CERN <span>Accélérateur de science</span></a></h1> <ul> <li class="cern-accountlinks"><a class="cern-account" href="https://cds.cern.ch/youraccount/login?ln=fr&referer=http%3A//cds.cern.ch/record/2845730/files/%3Fln%3Dfr" title="Sign in to your CERN account">Connexion</a></li> <li><a class="cern-directory" href="http://cern.ch/directory" title="Search CERN resources and browse the directory">Liens utiles</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">Articles, rapports et multimédia de la physique des hautes énergies</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=fr">Recherche</a></li> <li class="menu-444 "><a class="" title="" href="http://cds.cern.ch/submit?ln=fr">Soumettre</a></li> <li class="menu-426 "><a class="" href="http://cds.cern.ch/help/?ln=fr">Aide</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=fr">Personnaliser</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=fr">Vos alertes</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=fr">Vos paniers</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=fr">Vos commentaires</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=fr">Vos recherches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=fr" class="navtrail">Accueil</a> > > <a class="navtrail" href="http://cds.cern.ch/record/2845730">Achievements and Performance Prospects of the Upgraded LHC Injectors</a> > Accès aux Fichiers </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="http://cds.cern.ch/record/2845730/?ln=fr">Informations </a></li><li class="on"><a href="http://cds.cern.ch/record/2845730/files?ln=fr">Fichiers </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/2845730?ln=fr">Achievements and Performance Prospects of the Upgraded LHC Injectors</a></strong> - <a href="/search?f=author&p=Kain%2C%20Verena&ln=fr">Kain, Verena</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> fichier(s):</small><ul><table border="0" cellspacing="1" class="searchbox"> <tr> <td align="left" colspan="2" class="portalboxheader"> <img src='http://cds.cern.ch/img/smallfiles.gif' border="0" />  document </td> </tr><tr> <td class="portalboxheader"> <font size="-2">version 1</font> </td> <td> <table> <tr> <td valign="top"> <small><a href="http://cds.cern.ch/record/2845730/files/document.pdf?version=1">document.pdf</a></small> </td> <td valign="top"> <font size="-2" color="green">[1.23 MB]</font> <font size="-2"><em>11 jan 2023, 06:07</em> </td> <td valign="top"><em></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=fr&p=recid%3A2845730&rm=wrd" class="moreinfo">Notices similaires</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="http://cds.cern.ch/?ln=fr">Recherche</a> :: <a class="footer" href="http://cds.cern.ch/submit?ln=fr">Soumettre</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=fr">Personnaliser</a> :: <a class="footer" href="http://cds.cern.ch/help/?ln=fr">Aide</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> <br /> Powered by <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> Maintenu par <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - 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Achievements and Performance Prospects of the Upgraded LHC Injectors - CERN Document Server