CINXE.COM

<!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="zh" xml:lang="zh" xmlns:og="http://ogp.me/ns#" xmlns:fb="http://ogp.me/ns/fb#"> <head> <title>Commissioning of ALPS, the New Beam Position Monitor System of CERN’s Super Proton Synchrotron - 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/2815318/export/hx" /> <link rel="alternate" hreflang="el" href="https://cds.cern.ch/record/2815318/export/hx?ln=el" /> <link rel="alternate" hreflang="fr" href="https://cds.cern.ch/record/2815318/export/hx?ln=fr" /> <link rel="alternate" hreflang="bg" href="https://cds.cern.ch/record/2815318/export/hx?ln=bg" /> <link rel="alternate" hreflang="zh-TW" href="https://cds.cern.ch/record/2815318/export/hx?ln=zh_TW" /> <link rel="alternate" hreflang="pt" href="https://cds.cern.ch/record/2815318/export/hx?ln=pt" /> <link rel="alternate" hreflang="no" href="https://cds.cern.ch/record/2815318/export/hx?ln=no" /> <link rel="alternate" hreflang="hr" href="https://cds.cern.ch/record/2815318/export/hx?ln=hr" /> <link rel="alternate" hreflang="ca" href="https://cds.cern.ch/record/2815318/export/hx?ln=ca" /> <link rel="alternate" hreflang="de" href="https://cds.cern.ch/record/2815318/export/hx?ln=de" /> <link rel="alternate" hreflang="it" href="https://cds.cern.ch/record/2815318/export/hx?ln=it" /> <link rel="alternate" hreflang="zh-CN" href="https://cds.cern.ch/record/2815318/export/hx?ln=zh_CN" /> <link rel="alternate" hreflang="sv" href="https://cds.cern.ch/record/2815318/export/hx?ln=sv" /> <link rel="alternate" hreflang="sk" href="https://cds.cern.ch/record/2815318/export/hx?ln=sk" /> <link rel="alternate" hreflang="en" href="https://cds.cern.ch/record/2815318/export/hx?ln=en" /> <link rel="alternate" hreflang="pl" href="https://cds.cern.ch/record/2815318/export/hx?ln=pl" /> <link rel="alternate" hreflang="ru" href="https://cds.cern.ch/record/2815318/export/hx?ln=ru" /> <link rel="alternate" hreflang="ka" href="https://cds.cern.ch/record/2815318/export/hx?ln=ka" /> <link rel="alternate" hreflang="ja" href="https://cds.cern.ch/record/2815318/export/hx?ln=ja" /> <link rel="alternate" hreflang="es" href="https://cds.cern.ch/record/2815318/export/hx?ln=es" /> <link rel="alternate" type="application/rss+xml" title="CERN Document Server RSS" href="/rss?ln=zh_TW" /> <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="zh_TW" /> <meta name="description" content="The Super Proton Synchrotron (SPS) is both, the final machine in the pre-accelerator chain of the Large Hadron Collider (LHC) at CERN, and a machine providing several experiments with proton and ion beams. In the framework of CERN’s LHC Injectors Upgrade (LIU) project, aimed at improving the performances of the pre-accelerators in view of the high-luminosity upgrade of the LHC, the Beam Position Monitor (BPM) system of the SPS was redesigned during Run 2 of the LHC and deployed during the subsequent Long Shutdown 2 (LS2). This new system is called ALPS (A Logarithmic Position System) and acquires the signals from some 240 BPMs. It is designed to improve the system’s reliability and reduce the required maintenance with respect to its predecessor. During the restart of the SPS in 2021, the BPM system was a key element of the fast recommissioning of the machine, proving the validity of the chosen design approach and pre-beam commissioning strategy. This paper aims to illustrate the design choices made for ALPS, the strategy for commissioning it with beam in parallel with the machine restart, the commissioning procedure and the results obtained. Boccardi, Andrea; Albertone, Joel; Barros Marin, Manoel; Bogey, Thierry; Kain, Verena; Li, Kevin S B; Malinowska, Patrycja A; Topaloudis, Athanasios; Wendt, Manfred" /> <meta name="keywords" content="MMI, electronics, electron, proton, operation" /> <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"/>  <meta content="JACoW : Commissioning of ALPS, the New Beam Position Monitor System of CERN’s Super Proton Synchrotron" name="citation_title" /> <meta content="Boccardi, Andrea" name="citation_author" /> <meta content="Bogey, Thierry" name="citation_author" /> <meta content="Malinowska, Patrycja A" name="citation_author" /> <meta content="Barros Marin, Manoel" name="citation_author" /> <meta content="Kain, Verena" name="citation_author" /> <meta content="Topaloudis, Athanasios" name="citation_author" /> <meta content="Albertone, Joel" name="citation_author" /> <meta content="Li, Kevin S B" name="citation_author" /> <meta content="Wendt, Manfred" name="citation_author" /> <meta content="JACoW" name="citation_publisher" /> <meta content="10.18429/JACoW-IBIC2021-MOPP23" name="citation_doi" /> <meta content="JACoW IBIC" name="citation_journal_title" /> <meta content="2021" name="citation_volume" /> <meta content="96-99" name="citation_firstpage" /> <meta content="2021" name="citation_publication_date" /> <meta name="citation_online_date" content="2022/07/09"> <meta content="10.18429/JACoW-IBIC2021-MOPP23" name="citation_doi" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/2815318/files/document.pdf" />  <meta content="COMMISSIONING OF ALPS, THE NEW BEAM POSITION MONITOR SYSTEM OF CERN’S SUPER PROTON SYNCHROTRON" property="og:title" /> <meta content="Commissioning of ALPS, the New Beam Position Monitor System of CERN’s Super Proton Synchrotron" property="og:title" /> <meta content="JACoW" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/2815318" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="JACoW" property="og:description" /> <meta content="The Super Proton Synchrotron (SPS) is both, the final machine in the pre-accelerator chain of the Large Hadron Collider (LHC) at CERN, and a machine providing several experiments with proton and ion beams. In the framework of CERN’s LHC Injectors Upgrade (LIU) project, aimed at improving the performances of the pre-accelerators in view of the high-luminosity upgrade of the LHC, the Beam Position Monitor (BPM) system of the SPS was redesigned during Run 2 of the LHC and deployed during the subsequent Long Shutdown 2 (LS2). This new system is called ALPS (A Logarithmic Position System) and acquires the signals from some 240 BPMs. It is designed to improve the system’s reliability and reduce the required maintenance with respect to its predecessor. During the restart of the SPS in 2021, the BPM system was a key element of the fast recommissioning of the machine, proving the validity of the chosen design approach and pre-beam commissioning strategy. This paper aims to illustrate the design choices made for ALPS, the strategy for commissioning it with beam in parallel with the machine restart, the commissioning procedure and the results obtained." property="og:description" />  <meta content="summary" name="twitter:card" /> <meta content="summary" name="twitter:card" /> <style></style> </head> <body class="CERN32Document32Server search" lang="zh">  <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=zh_TW&referer=https%3A//cds.cern.ch/record/2815318/export/hx%3Fln%3Dzh_TW" 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=zh_TW">搜尋</a></li> <li class="menu-444 "><a class="" title="" href="https://cds.cern.ch/submit?ln=zh_TW">提交</a></li> <li class="menu-426 "><a class="" href="https://cds.cern.ch/help/?ln=zh_TW">幫助</a></li> <li class="leaf hassubcdsmenu"> <a hreflang="en" class="header" href="https://cds.cern.ch/youraccount/display?ln=zh_TW">個人化</a> <ul class="subsubcdsmenu"><li><a href="https://cds.cern.ch/youralerts/list?ln=zh_TW">Your alerts</a></li><li><a href="https://cds.cern.ch/yourbaskets/display?ln=zh_TW">Your baskets</a></li><li><a href="https://cds.cern.ch/yourcomments?ln=zh_TW">Your comments</a></li><li><a href="https://cds.cern.ch/youralerts/display?ln=zh_TW">Your searches</a></li></ul></li> </ul> </div> </div> </div>  <table class="navtrailbox"> <tr> <td class="navtrailboxbody"> <a href="/?ln=zh_TW" class="navtrail">主頁</a> > <a class="navtrail" href="/record/2815318">Commissioning of ALPS, the New Beam Position Monitor System of CERN’s Super Proton Synchrotron</a> > BibTeX </td> </tr> </table> </div> <div class="pagebody"><div class="pagebodystripemiddle"> <pre> @article{Boccardi:2815318, author = "Boccardi, Andrea and Albertone, Joel and Barros Marin, Manoel and Bogey, Thierry and Kain, Verena and Li, Kevin S B and Malinowska, Patrycja A and Topaloudis, Athanasios and Wendt, Manfred", title = "{Commissioning of ALPS, the New Beam Position Monitor System of CERN’s Super Proton Synchrotron. COMMISSIONING OF ALPS, THE NEW BEAM POSITION MONITOR SYSTEM OF CERN’S SUPER PROTON SYNCHROTRON}", journal = "JACoW IBIC", volume = "2021", pages = "96-99", year = "2021", url = "https://cds.cern.ch/record/2815318", doi = "10.18429/JACoW-IBIC2021-MOPP23", } </pre></div></div> <footer id="footer" class="pagefooter clearfix">  <div class="pagefooterstripeleft"> CERN Document Server :: <a class="footer" href="https://cds.cern.ch/?ln=zh_TW">搜尋</a> :: <a class="footer" href="https://cds.cern.ch/submit?ln=zh_TW">提交</a> :: <a class="footer" href="https://cds.cern.ch/youraccount/display?ln=zh_TW">個人化</a> :: <a class="footer" href="https://cds.cern.ch/help/?ln=zh_TW">幫助</a> :: <a class="footer" href="https://cern.service-now.com/service-portal?id=privacy_policy&se=CDS-Service" target="_blank">Privacy Notice</a> <br /> 伺服器系統： <a class="footer" href="http://invenio-software.org/">Invenio</a> <br /> 管理者： <a class="footer" href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Service</a> - Need help? Contact <a href="https://cern.service-now.com/service-portal?id=service_element&name=CDS-Service">CDS Support</a>. <br /> </div> <div class="pagefooterstriperight"> <div class="cern-logo"> <a id="logo" href="http://cern.ch" title="CERN" rel="CERN" ><img src="https://cds.cern.ch/img/cern_theme/img/cern-logo-large.png" alt="CERN" /></a> </div> <div class="cern-languagebox"> 本網站提供以下語言選擇:<br /><a href="/record/2815318/export/hx?ln=bg" class="langinfo">Български</a>  <a href="/record/2815318/export/hx?ln=ca" class="langinfo">Català</a>  <a href="/record/2815318/export/hx?ln=de" class="langinfo">Deutsch</a>  <a href="/record/2815318/export/hx?ln=el" class="langinfo">Ελληνικά</a>  <a href="/record/2815318/export/hx?ln=en" class="langinfo">English</a>  <a href="/record/2815318/export/hx?ln=es" class="langinfo">Español</a>  <a href="/record/2815318/export/hx?ln=fr" class="langinfo">Français</a>  <a href="/record/2815318/export/hx?ln=hr" class="langinfo">Hrvatski</a>  <a href="/record/2815318/export/hx?ln=it" class="langinfo">Italiano</a>  <a href="/record/2815318/export/hx?ln=ja" class="langinfo">日本語</a>  <a href="/record/2815318/export/hx?ln=ka" class="langinfo">ქართული</a>  <a href="/record/2815318/export/hx?ln=no" class="langinfo">Norsk/Bokmål</a>  <a href="/record/2815318/export/hx?ln=pl" class="langinfo">Polski</a>  <a href="/record/2815318/export/hx?ln=pt" class="langinfo">Português</a>  <a href="/record/2815318/export/hx?ln=ru" class="langinfo">Русский</a>  <a href="/record/2815318/export/hx?ln=sk" class="langinfo">Slovensky</a>  <a href="/record/2815318/export/hx?ln=sv" class="langinfo">Svenska</a>  <a href="/record/2815318/export/hx?ln=zh_CN" class="langinfo">中文(简)</a>  <span class="langinfo">中文(繁)</span> </div> </div>  </footer> <script type="text/javascript"> var SyndeticsBookCovers = (function() { var SMALL_SIZE = "sc.gif", MEDIUM_SIZE = "mc.gif", RAW_URL = "https://secure.syndetics.com/index.aspx?isbn=THEISBN/THESIZE&client=cernlibrary"; replaceCover = function(imgElement, isbns, hdFormat) { var img = new Image(), size = hdFormat ? MEDIUM_SIZE : SMALL_SIZE; var _isbns = isbns.sort(function(a, b) { // sort from shortest to longest ISBN (more modern) return a.length > b.length ? 1 : -1; }); function next() { var isbn = _isbns.pop(); if (isbn) { var url = RAW_URL.replace("THEISBN", isbn).replace("THESIZE", size); img.src = url; } } function done() { imgElement.src = img.src; } img.onload = function() { if (this.width > 1) { done(); } else { next(); } }; next(); }; return { replaceCover: replaceCover }; })(); $(document).ready(function() { // get book covers $("img.book-cover").each(function() { var $this = $(this), strIsbns = $this.data("isbns") || "", isbnsArray = String(strIsbns).split(","), hdFormat = $this.hasClass("hd"); SyndeticsBookCovers.replaceCover(this, isbnsArray, hdFormat); }); // WebNews tooltips $.ajax({ url: "/news/tooltips", success: function(data) { create_tooltips(data); }, dataType: "json", cache: false }); }); </script>  <script src="//cds.cern.ch/js/feedback.js"></script>   <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="https://webanalytics.web.cern.ch/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '756']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script>  </body> </html>