Measuring the Bunch Frequency Multiplication at CTF3

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Central to this scheme is the use of RF deflectors to inject bunches into a delay loop and a combiner ring, in order to transform the initial bunch frequency of 1.5 GHz from the LINAC to a final bunch frequency of 12 GHz. The optimization procedure relies on several steps. The active length of each ring is carefully adjusted to within less than millimetre accuracy using a wiggler magnet. The transverse optics of the machine must be set up in a way to ensure beam isochronicity. Diagnostics based on optical Streak camera and RF power measurements have been designed to measure the longitudinal behaviour of the beam during the combination. This paper presents their performance and recent measurements Bettoni, S; Bravin, E; Corsini, R; Dabrowski, A; Doebert, S; Egger, D; Ferrari, A; Lefevre, T; Rabiller, A; Skowronski, PK; Soby, L; Tecker, F; Welsch, CP" /> <meta name="keywords" content="Bunch Frequency Multiplication, CTF3" /> <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="Measuring the Bunch Frequency Multiplication at CTF3" name="citation_title" /> <meta content="Bettoni, S" name="citation_author" /> <meta content="Tecker, F" name="citation_author" /> <meta content="Corsini, R" name="citation_author" /> <meta content="Welsch, CP" name="citation_author" /> <meta content="Doebert, S" name="citation_author" /> <meta content="Dabrowski, A" name="citation_author" /> <meta content="Bravin, E" name="citation_author" /> <meta content="Skowronski, PK" name="citation_author" /> <meta content="Soby, L" name="citation_author" /> <meta content="Ferrari, A" name="citation_author" /> <meta content="Lefevre, T" name="citation_author" /> <meta content="Egger, D" name="citation_author" /> <meta content="Rabiller, A" name="citation_author" /> <meta content="2010/05/01" name="citation_publication_date" /> <meta name="citation_online_date" content="2010/06/15"> <meta content="CERN-BE-2010-020" name="citation_technical_report_number" /> <meta content="CERN-ATS-2010-113" name="citation_technical_report_number" /> <meta name="citation_pdf_url" content="https://cds.cern.ch/record/1271745/files/CERN-BE-2010-020.pdf" />  <meta content="Measuring the Bunch Frequency Multiplication at CTF3" property="og:title" /> <meta content="website" property="og:type" /> <meta content="website" property="og:type" /> <meta content="https://cds.cern.ch/record/1271745" property="og:url" /> <meta content="CERN Document Server" property="og:site_name" /> <meta content="The CLIC Test Facility 3 (CTF3) is being built and commissioned by an international collaboration to test the feasibility of the proposed Compact Linear Collider (CLIC) drive beam generation scheme. 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var affiliation = $(this).data('affiliation') + '</br>'; var contribution = $(this).data('contribution') + '</br>'; $.magnificPopup.open({ items: { src: '<div id="ovelary-mathjax" class="overlay-white oc-content overlay-white-500">' + author + affiliation + contribution + '</div>', type: 'inline' }, callbacks: { open: function() { var div = document.getElementById("overlay-mathjax") MathJax.Hub.Queue(["Typeset", MathJax.Hub, div]); }, } }) }) }); </script> <tr><td class="formatRecordLabel"> Report number </td><td style="padding-left:5px;">CERN-BE-2010-020 ; CERN-ATS-2010-113</td></tr> <tr><td class="formatRecordLabel"> Title </td><td style="padding-left:5px;"><b>Measuring the Bunch Frequency Multiplication at CTF3</b></td></tr> <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="https://cds.cern.ch/search?f=author&p=Bettoni%2C%20S&ln=en">Bettoni, S</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Bravin%2C%20E&ln=en">Bravin, E</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Corsini%2C%20R&ln=en">Corsini, R</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Dabrowski%2C%20A&ln=en">Dabrowski, A</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Doebert%2C%20S&ln=en">Doebert, S</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Egger%2C%20D&ln=en">Egger, D</a> (EPFL) ; <a href="https://cds.cern.ch/search?f=author&p=Ferrari%2C%20A&ln=en">Ferrari, A</a> (Uppsala U.) ; <a href="https://cds.cern.ch/search?f=author&p=Lefevre%2C%20T&ln=en">Lefevre, T</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Rabiller%2C%20A&ln=en">Rabiller, A</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Skowronski%2C%20PK&ln=en">Skowronski, PK</a> (CERN)<span id="more" style=""> ; <a href="https://cds.cern.ch/search?f=author&p=Soby%2C%20L&ln=en">Soby, L</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Tecker%2C%20F&ln=en">Tecker, F</a> (CERN) ; <a href="https://cds.cern.ch/search?f=author&p=Welsch%2C%20CP&ln=en">Welsch, CP</a> (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.)</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"> Publication </td><td style="padding-left:5px;">2010</td></tr> <tr><td class="formatRecordLabel"> Imprint </td><td style="padding-left:5px;">01 May 2010</td></tr> <tr><td class="formatRecordLabel"> Number of pages </td><td style="padding-left:5px;">3</td></tr> <tr><td class="formatRecordLabel"> In: </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/record/1208994">1st International Particle Accelerator Conference</a>, Kyoto, Japan, 23 - 28 May 2010, pp.MOPE058</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=CLIC&f=693__a">CLIC</a> ; <a href="https://cds.cern.ch/search?p=CTF3&f=693__e">CTF3</a></td></tr> <tr><td class="formatRecordLabel"> Free keywords </td><td style="padding-left:5px;"><a href="https://cds.cern.ch/search?f=keyword&p=Bunch%20Frequency%20Multiplication&ln=en">Bunch Frequency Multiplication</a> ; <a href="https://cds.cern.ch/search?f=keyword&p=CTF3&ln=en">CTF3</a></td></tr> <tr><td class="formatRecordLabel"> Abstract </td><td style="padding-left:5px;">The CLIC Test Facility 3 (CTF3) is being built and commissioned by an international collaboration to test the feasibility of the proposed Compact Linear Collider (CLIC) drive beam generation scheme. Central to this scheme is the use of RF deflectors to inject bunches into a delay loop and a combiner ring, in order to transform the initial bunch frequency of 1.5 GHz from the LINAC to a final bunch frequency of 12 GHz. The optimization procedure relies on several steps. The active length of each ring is carefully adjusted to within less than millimetre accuracy using a wiggler magnet. The transverse optics of the machine must be set up in a way to ensure beam isochronicity. Diagnostics based on optical Streak camera and RF power measurements have been designed to measure the longitudinal behaviour of the beam during the combination. This paper presents their performance and recent measurements</td></tr> <tr><td class="formatRecordLabel"> Copyright/License </td><td style="padding-left:5px;">publication: (License: CC-BY)</td></tr> </table> <br/>Email contact: <a href="mailto:madeleine.catin@cern.ch">madeleine.catin@cern.ch</a> ; <a href="mailto:lauriane.bueno@cern.ch">lauriane.bueno@cern.ch</a> <small> </small> <br/> <br/><br/><div align="right"><div style="padding-bottom:2px;padding-top:30px;"><span class="moreinfo" style="margin-right:10px;"> <a href="" class="moreinfo">Back to search</a> </span></div></div> <div class="bottom-left-folded"><div class="recordlastmodifiedbox" style="position:relative;margin-left:1px"> Record created 2010-06-15, last modified 2024-02-23</div></div> <div class="bottom-right-folded" style="text-align:right;padding-bottom:2px;"> <span class="moreinfo" style="margin-right:10px;"><a href="/search?ln=en&p=recid%3A1271745&rm=wrd" class="moreinfo">Similar records</a></span></div> </div> </div> </div> <br/> <br /> <div class="detailedrecordminipanel"> <div class="top-left"></div><div class="top-right"></div> <div class="inside"> <div id="detailedrecordminipanelfile" style="width:33%;float:left;text-align:center;margin-top:0"> <div><small class="detailedRecordActions">Fulltext:</small> <br /><a href="/record/1271745/files/CERN-BE-2010-020.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>PDF</a><br /></div><small class="detailedRecordActions">External link:</small><br /><small><a href="https://accelconf.web.cern.ch/IPAC10/papers/MOPE058.pdf"><img style="border:none" src="/img/file-icon-text-12x16.gif" alt="Download fulltext"/>Published version from JACoW</a></small> </div> <div id="detailedrecordminipanelreview" style="width:30%;float:left;text-align:center"> </div> <div id="detailedrecordminipanelactions" style="width:36%;float:right;text-align:right;"> <ul class="detailedrecordactions"> <li><a href="/yourbaskets/add?ln=en&recid=1271745">Add to personal basket</a></li> <li>Export as <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/hx?ln=en">BibTeX</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/hm?ln=en">MARC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/xm?ln=en">MARCXML</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/xd?ln=en">DC</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/xe?ln=en">EndNote</a>,  <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/xn?ln=en">NLM</a>, <a style="text-decoration:underline;font-weight:normal" href="/record/1271745/export/xw?ln=en">RefWorks</a> </li> </ul> <div style='padding-left: 13px;'>  <div id="bookmark"></div> <div id="bookmark_sciencewise"></div> <style type="text/css"> #bookmark_sciencewise, #bookmark {float: left;} #bookmark_sciencewise li {padding: 2px; width: 25px;} #bookmark_sciencewise ul, #bookmark ul {list-style-image: none;} </style> <script type="text/javascript" src="/js/jquery.bookmark.min.js"></script> <style type="text/css">@import "/css/jquery.bookmark.css";</style> <script type="text/javascript">// <![CDATA[ $.bookmark.addSite('sciencewise', 'ScienceWise.info', 'https://cds.cern.ch/img/sciencewise.png', 'en', 'bookmark', 'http://sciencewise.info/bookmarks/cds:1271745/add'); $('#bookmark_sciencewise').bookmark({sites: ['sciencewise']}); $('#bookmark').bookmark({ sites: ['facebook', 'twitter', 'linkedin', 'google_plusone'], icons: '/img/bookmarks.png', url: 'https://cds.cern.ch/record/1271745', addEmail: true, title: "Measuring the Bunch Frequency Multiplication at CTF3", description: "The CLIC Test Facility 3 (CTF3) is being built and commissioned by an international collaboration to test the feasibility of the proposed Compact Linear Collider (CLIC) drive beam generation scheme. Central to this scheme is the use of RF deflectors to inject bunches into a delay loop and a combiner ring, in order to transform the initial bunch frequency of 1.5 GHz from the LINAC to a final bunch frequency of 12 GHz. The optimization procedure relies on several steps. The active length of each ring is carefully adjusted to within less than millimetre accuracy using a wiggler magnet. The transverse optics of the machine must be set up in a way to ensure beam isochronicity. Diagnostics based on optical Streak camera and RF power measurements have been designed to measure the longitudinal behaviour of the beam during the combination. 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Measuring the Bunch Frequency Multiplication at CTF3 - CERN Document Server