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In 2018 the machine not only gave another step forward in extracted intensity, but also demonstrated that it could deliver the LIU target intensity in a reproducible and reliable way. The main steps that allowed the high performance reach of the NOMINAL beam and improvements to the machine stability are detailed in this paper. This work is also intended to be a reference for the restart after the Long Shutdown 2. Albright, Simon; Alemany Fernandez, Reyes; Angoletta, Maria Elena; Bartosik, Hannes; Beaumont, Anthony; Bellodi, Giulia; Biancacci, Nicolo; Bozzolan, Michele; Buzio, Marco; Di Lorenzo, Francesco; Frassier, Alexandre; Gamba, Davide; Hirlander, Simon; Huschauer, Alexander; Kain, Verena; Kotzian, Gerd; Kuchler, Detlef; Latina, Andrea; Levens, Tom; Mahner, Edgar; Manosperti, Enrico; Marqversen, Ole; Moreno Garcia, Daniel; Nicosia, Dom; O'Neil, Michael; Ozturk, Emin; Saa Hernandez, Angela; Scrivens, Richard; Jensen, Steen; Tranquille, Gerard Alain; Wetton, Chris; Zampetakis, Michail" /> <meta name="keywords" content="CERN, LEIR, ion chain, Pb, beam performance, 2018 operation, beam parameters" /> <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="Review of LEIR operation in 2018" name="citation_title" /> <meta content="Albright, Simon" name="citation_author" /> <meta content="Huschauer, Alexander" name="citation_author" /> <meta content="Zampetakis, Michail" name="citation_author" /> <meta content="Scrivens, Richard" name="citation_author" /> <meta content="Angoletta, Maria Elena" name="citation_author" /> <meta content="Jensen, Steen" name="citation_author" /> <meta content="Levens, Tom" name="citation_author" /> <meta content="Tranquille, Gerard Alain" name="citation_author" /> <meta content="Saa Hernandez, Angela" name="citation_author" /> <meta content="Gamba, Davide" name="citation_author" /> <meta content="Kain, Verena" name="citation_author" /> <meta content="Biancacci, Nicolo" name="citation_author" /> <meta content="Bartosik, Hannes" name="citation_author" /> <meta content="Hirlander, Simon" name="citation_author" /> <meta content="Bozzolan, Michele" name="citation_author" /> <meta content="Mahner, Edgar" name="citation_author" /> <meta content="Alemany Fernandez, Reyes" name="citation_author" /> <meta content="Latina, Andrea" name="citation_author" /> <meta content="Di Lorenzo, Francesco" name="citation_author" /> <meta content="Kuchler, Detlef" name="citation_author" /> <meta content="Bellodi, Giulia" name="citation_author" /> <meta content="Beaumont, Anthony" name="citation_author" /> <meta content="Buzio, Marco" name="citation_author" /> <meta content="Wetton, Chris" name="citation_author" /> <meta content="Frassier, Alexandre" name="citation_author" /> <meta content="Marqversen, Ole" name="citation_author" /> <meta content="O'Neil, Michael" name="citation_author" /> <meta content="Nicosia, Dom" name="citation_author" /> <meta content="Moreno Garcia, Daniel" name="citation_author" /> <meta content="Kotzian, Gerd" name="citation_author" /> <meta content="Ozturk, Emin" name="citation_author" /> <meta content="Manosperti, Enrico" name="citation_author" /> <meta content="2019/12/01" name="citation_publication_date" /> <meta name="citation_online_date" content="2020/04/16"> <meta content="CERN-ACC-Note-2020-0023" name="citation_technical_report_number" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2715365/files/CERN-ACC-NOTE-2020-0023.pdf" />  <meta content="Review of LEIR operation in 2018" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2715365" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="During run 2 (2015-2018) the LEIR machine experienced several important improvements in terms of extracted intensity, driven by the LHC Injectors Upgrade (LIU) project requirements. In 2018 the machine not only gave another step forward in extracted intensity, but also demonstrated that it could deliver the LIU target intensity in a reproducible and reliable way. The main steps that allowed the high performance reach of the NOMINAL beam and improvements to the machine stability are detailed in this paper. This work is also intended to be a reference for the restart after the Long Shutdown 2." property="og:description" />  <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=https%3A//cds.cern.ch/record/2715365" 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=en">Search</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=en">Submit</a></li> <li class="menu-426 "><a class="" href="https://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> > Review of LEIR operation in 2018 </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/2715365/?ln=en">Information </a></li><li class=""><a href="/record/2715365/comments?ln=en">Discussion (0) </a></li><li class=""><a href="/record/2715365/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="2715365"></abbr>  <link href="/img/download_and_embed_buttons.css" rel="stylesheet" type="text/css" /> <style type="text/css">  .video_talk_wrapper{ max-width: 640px; 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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 32 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="https://cds.cern.ch/search?f=author&p=Albright%2C%20Simon&ln=en">Albright, Simon</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Alemany%20Fernandez%2C%20Reyes&ln=en">Alemany Fernandez, Reyes</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Angoletta%2C%20Maria%20Elena&ln=en">Angoletta, Maria Elena</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Bartosik%2C%20Hannes&ln=en">Bartosik, Hannes</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Beaumont%2C%20Anthony&ln=en">Beaumont, Anthony</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Bellodi%2C%20Giulia&ln=en">Bellodi, Giulia</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Biancacci%2C%20Nicolo&ln=en">Biancacci, Nicolo</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Bozzolan%2C%20Michele&ln=en">Bozzolan, Michele</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Buzio%2C%20Marco&ln=en">Buzio, Marco</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Di%20Lorenzo%2C%20Francesco&ln=en">Di Lorenzo, Francesco</a> (CERN)<span id="more" style=""> ; <a href="https://cds.cern.ch/search?f=author&p=Frassier%2C%20Alexandre&ln=en">Frassier, Alexandre</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Gamba%2C%20Davide&ln=en">Gamba, Davide</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Hirlander%2C%20Simon&ln=en">Hirlander, Simon</a> ; <a href="https://cds.cern.ch/search?f=author&p=Huschauer%2C%20Alexander&ln=en">Huschauer, Alexander</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Kain%2C%20Verena&ln=en">Kain, Verena</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Kotzian%2C%20Gerd&ln=en">Kotzian, Gerd</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Kuchler%2C%20Detlef&ln=en">Kuchler, Detlef</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Latina%2C%20Andrea&ln=en">Latina, Andrea</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Levens%2C%20Tom&ln=en">Levens, Tom</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Mahner%2C%20Edgar&ln=en">Mahner, Edgar</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Manosperti%2C%20Enrico&ln=en">Manosperti, Enrico</a> (Universita & INFN Pisa (IT)) ; <a href="https://cds.cern.ch/search?f=author&p=Marqversen%2C%20Ole&ln=en">Marqversen, Ole</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Moreno%20Garcia%2C%20Daniel&ln=en">Moreno Garcia, Daniel</a> (Universitat Politecnica Catalunya (ES)) ; <a href="https://cds.cern.ch/search?f=author&p=Nicosia%2C%20Dom&ln=en">Nicosia, Dom</a> ; <a href="https://cds.cern.ch/search?f=author&p=O%27Neil%2C%20Michael&ln=en">O'Neil, Michael</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Ozturk%2C%20Emin&ln=en">Ozturk, Emin</a> ; <a href="https://cds.cern.ch/search?f=author&p=Saa%20Hernandez%2C%20Angela&ln=en">Saa Hernandez, Angela</a> (Universidade de Santiago de Compostela (ES)) ; <a href="https://cds.cern.ch/search?f=author&p=Scrivens%2C%20Richard&ln=en">Scrivens, Richard</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Jensen%2C%20Steen&ln=en">Jensen, Steen</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Tranquille%2C%20Gerard%20Alain&ln=en">Tranquille, Gerard Alain</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Wetton%2C%20Chris&ln=en">Wetton, Chris</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Zampetakis%2C%20Michail&ln=en">Zampetakis, Michail</a> (University of Crete (GR))</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;">2019</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'; 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;">01 Dec 2019</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">113</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="https://cds.cern.ch/search?p=CERN%20LEIR&f=693__a">CERN LEIR</a></td></tr> <tr><td class="formatRecordLabel"> Keywords </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=keyword&p=CERN&ln=en">CERN</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=LEIR&ln=en">LEIR</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=ion%20chain&ln=en">ion chain</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=Pb&ln=en">Pb</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=beam%20performance&ln=en">beam performance</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=2018%20operation&ln=en">2018 operation</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=beam%20parameters&ln=en">beam parameters</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">During run 2 (2015-2018) the LEIR machine experienced several important improvements in terms of extracted intensity, driven by the LHC Injectors Upgrade (LIU) project requirements. In 2018 the machine not only gave another step forward in extracted intensity, but also demonstrated that it could deliver the LIU target intensity in a reproducible and reliable way. The main steps that allowed the high performance reach of the NOMINAL beam and improvements to the machine stability are detailed in this paper. This work is also intended to be a reference for the restart after the Long Shutdown 2.</td></tr> <tr><td class="formatRecordLabel"> Submitted by </td><td style="padding-left:5px;"><a href="mailto:alessia.valenza@cern.ch">alessia.valenza@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" ? 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