[1803.01243] Axion Searches with Microwave Filters: the RADES project

<?xml version="1.0" encoding="UTF-8"?> <!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="en" xml:lang="en"> <head> <title>[1803.01243] Axion Searches with Microwave Filters: the RADES project</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="apple-touch-icon" sizes="180x180" href="/static/browse/0.3.4/images/icons/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/static/browse/0.3.4/images/icons/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="/static/browse/0.3.4/images/icons/favicon-16x16.png"> <link rel="manifest" href="/static/browse/0.3.4/images/icons/site.webmanifest"> <link rel="mask-icon" href="/static/browse/0.3.4/images/icons/safari-pinned-tab.svg" color="#5bbad5"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="theme-color" content="#ffffff"> <link rel="stylesheet" type="text/css" media="screen" href="/static/browse/0.3.4/css/arXiv.css?v=20240822" /> <link rel="stylesheet" type="text/css" media="print" href="/static/browse/0.3.4/css/arXiv-print.css?v=20200611" /> <link rel="stylesheet" type="text/css" media="screen" href="/static/browse/0.3.4/css/browse_search.css" /> <script language="javascript" src="/static/browse/0.3.4/js/accordion.js" /></script> <link rel="canonical" href="https://arxiv.org/abs/1803.01243"/> <meta name="description" content="Abstract page for arXiv paper 1803.01243: Axion Searches with Microwave Filters: the RADES project"><meta property="og:type" content="website" /> <meta property="og:site_name" content="arXiv.org" /> <meta property="og:title" content="Axion Searches with Microwave Filters: the RADES project" /> <meta property="og:url" content="https://arxiv.org/abs/1803.01243v2" /> <meta property="og:image" content="/static/browse/0.3.4/images/arxiv-logo-fb.png" /> <meta property="og:image:secure_url" content="/static/browse/0.3.4/images/arxiv-logo-fb.png" /> <meta property="og:image:width" content="1200" /> <meta property="og:image:height" content="700" /> <meta property="og:image:alt" content="arXiv logo"/> <meta property="og:description" content="We propose, design and construct a variant of the conventional axion haloscope concept that could be competitive in the search for dark matter axions of masses in the decade 10-100 $渭$eV. Theses masses are located somewhat above the mass range in which existing experiments have reached sensitivity to benchmark QCD axion models. Our haloscope consists of an array of small microwave cavities connected by rectangular irises, in an arrangement commonly used in radio-frequency filters. The size of the unit cavity determines the main resonant frequency, while the possibility to connect a {large} number of cavities allows to reach large detection volumes. We develop the theoretical framework of the detection concept, and present design prescriptions to optimize detection capabilities. We describe the design and realization of a first small-scale prototype of this concept, called Relic Axion Detector Exploratory Setup (RADES). It consists of a copper-coated stainless steel five-cavities microwave filter with the detecting mode operating at around 8.4 GHz. This structure has been electromagnetically characterized at 2 K and 298 K, and it is now placed in ultra-high vacuum in one of the twin-bores of the 9 T CAST dipole magnet at CERN. We describe the data acquisition system developed for relic axion detection, and present preliminary results of the electromagnetic properties of the microwave filter, which show the potential of filters to reach QCD axion window sensitivity at X-band frequencies."/> <meta name="twitter:site" content="@arxiv"/> <meta name="twitter:card" content="summary"/> <meta name="twitter:title" content="Axion Searches with Microwave Filters: the RADES project"/> <meta name="twitter:description" content="We propose, design and construct a variant of the conventional axion haloscope concept that could be competitive in the search for dark matter axions of masses in the decade 10-100 $渭$eV. Theses..."/> <meta name="twitter:image" content="https://static.arxiv.org/icons/twitter/arxiv-logo-twitter-square.png"/> <meta name="twitter:image:alt" content="arXiv logo"/> <link rel="stylesheet" media="screen" type="text/css" href="/static/browse/0.3.4/css/tooltip.css"/><link rel="stylesheet" media="screen" type="text/css" href="https://static.arxiv.org/js/bibex-dev/bibex.css?20200709"/> <script src="/static/browse/0.3.4/js/mathjaxToggle.min.js" type="text/javascript"></script> <script src="//code.jquery.com/jquery-latest.min.js" type="text/javascript"></script> <script src="//cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js" type="text/javascript"></script> <script src="//cdn.jsdelivr.net/npm/dompurify@2.3.5/dist/purify.min.js"></script> <script src="/static/browse/0.3.4/js/toggle-labs.js?20241022" type="text/javascript"></script> <script src="/static/browse/0.3.4/js/cite.js" type="text/javascript"></script><meta name="citation_title" content="Axion Searches with Microwave Filters: the RADES project" /><meta name="citation_author" content="Melc贸n, Alejandro 脕lvarez" /><meta name="citation_author" content="Cuendis, Sergio Arguedas" /><meta name="citation_author" content="Cogollos, Cristian" /><meta name="citation_author" content="D铆az-Morcillo, Alejandro" /><meta name="citation_author" content="D枚brich, Babette" /><meta name="citation_author" content="Gallego, Juan Daniel" /><meta name="citation_author" content="Gimeno, Benito" /><meta name="citation_author" content="Irastorza, Igor G." /><meta name="citation_author" content="Lozano-Guerrero, Antonio Jos茅" /><meta name="citation_author" content="Malbrunot, Chlo茅" /><meta name="citation_author" content="Navarro, Pablo" /><meta name="citation_author" content="Garay, Carlos Pe帽a" /><meta name="citation_author" content="Redondo, Javier" /><meta name="citation_author" content="Vafeiadis, Theodoros" /><meta name="citation_author" content="Wuensch, Walter" /><meta name="citation_doi" content="10.1088/1475-7516/2018/05/040" /><meta name="citation_date" content="2018/03/03" /><meta name="citation_online_date" content="2018/05/17" /><meta name="citation_pdf_url" content="http://arxiv.org/pdf/1803.01243" /><meta name="citation_arxiv_id" content="1803.01243" /><meta name="citation_abstract" content="We propose, design and construct a variant of the conventional axion haloscope concept that could be competitive in the search for dark matter axions of masses in the decade 10-100 $\mu$eV. Theses masses are located somewhat above the mass range in which existing experiments have reached sensitivity to benchmark QCD axion models. Our haloscope consists of an array of small microwave cavities connected by rectangular irises, in an arrangement commonly used in radio-frequency filters. The size of the unit cavity determines the main resonant frequency, while the possibility to connect a {large} number of cavities allows to reach large detection volumes. We develop the theoretical framework of the detection concept, and present design prescriptions to optimize detection capabilities. We describe the design and realization of a first small-scale prototype of this concept, called Relic Axion Detector Exploratory Setup (RADES). It consists of a copper-coated stainless steel five-cavities microwave filter with the detecting mode operating at around 8.4 GHz. This structure has been electromagnetically characterized at 2 K and 298 K, and it is now placed in ultra-high vacuum in one of the twin-bores of the 9 T CAST dipole magnet at CERN. We describe the data acquisition system developed for relic axion detection, and present preliminary results of the electromagnetic properties of the microwave filter, which show the potential of filters to reach QCD axion window sensitivity at X-band frequencies." /> </head> <body class="with-cu-identity"> <div class="flex-wrap-footer"> <header> <a href="#content" class="is-sr-only">Skip to main content</a>  <div class="columns is-vcentered is-hidden-mobile" id="cu-identity"> <div class="column" id="cu-logo"> <a href="https://www.cornell.edu/"><img src="/static/browse/0.3.4/images/icons/cu/cornell-reduced-white-SMALL.svg" alt="Cornell University" /></a> </div><div class="column" id="support-ack"> <span id="support-ack-url">We gratefully acknowledge support from the Simons Foundation, <a href="https://info.arxiv.org/about/ourmembers.html">member institutions</a>, and all contributors.</span> <a href="https://info.arxiv.org/about/donate.html" class="btn-header-donate">Donate</a> </div> 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Filters: the RADES project</h1> <div class="authors"><span class="descriptor">Authors:</span><a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Melc%C3%B3n,+A+%C3%81" rel="nofollow">Alejandro 脕lvarez Melc贸n</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Cuendis,+S+A" rel="nofollow">Sergio Arguedas Cuendis</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Cogollos,+C" rel="nofollow">Cristian Cogollos</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=D%C3%ADaz-Morcillo,+A" rel="nofollow">Alejandro D铆az-Morcillo</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=D%C3%B6brich,+B" rel="nofollow">Babette D枚brich</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Gallego,+J+D" rel="nofollow">Juan Daniel Gallego</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Gimeno,+B" rel="nofollow">Benito Gimeno</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Irastorza,+I+G" rel="nofollow">Igor G. Irastorza</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Lozano-Guerrero,+A+J" rel="nofollow">Antonio Jos茅 Lozano-Guerrero</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Malbrunot,+C" rel="nofollow">Chlo茅 Malbrunot</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Navarro,+P" rel="nofollow">Pablo Navarro</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Garay,+C+P" rel="nofollow">Carlos Pe帽a Garay</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Redondo,+J" rel="nofollow">Javier Redondo</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Vafeiadis,+T" rel="nofollow">Theodoros Vafeiadis</a>, <a href="https://arxiv.org/search/hep-ex?searchtype=author&query=Wuensch,+W" rel="nofollow">Walter Wuensch</a></div> <div id="download-button-info" hidden>View a PDF of the paper titled Axion Searches with Microwave Filters: the RADES project, by Alejandro \'Alvarez Melc\'on and 14 other authors</div> <a class="mobile-submission-download" href="/pdf/1803.01243">View PDF</a> <blockquote class="abstract mathjax"> <span class="descriptor">Abstract:</span>We propose, design and construct a variant of the conventional axion haloscope concept that could be competitive in the search for dark matter axions of masses in the decade 10-100 $\mu$eV. Theses masses are located somewhat above the mass range in which existing experiments have reached sensitivity to benchmark QCD axion models. Our haloscope consists of an array of small microwave cavities connected by rectangular irises, in an arrangement commonly used in radio-frequency filters. The size of the unit cavity determines the main resonant frequency, while the possibility to connect a {large} number of cavities allows to reach large detection volumes. We develop the theoretical framework of the detection concept, and present design prescriptions to optimize detection capabilities. We describe the design and realization of a first small-scale prototype of this concept, called Relic Axion Detector Exploratory Setup (RADES). It consists of a copper-coated stainless steel five-cavities microwave filter with the detecting mode operating at around 8.4 GHz. This structure has been electromagnetically characterized at 2 K and 298 K, and it is now placed in ultra-high vacuum in one of the twin-bores of the 9 T CAST dipole magnet at CERN. We describe the data acquisition system developed for relic axion detection, and present preliminary results of the electromagnetic properties of the microwave filter, which show the potential of filters to reach QCD axion window sensitivity at X-band frequencies. </blockquote>  <div class="metatable"> <table summary="Additional metadata"> <tr> <td class="tablecell label">Comments:</td> <td class="tablecell comments mathjax">approved for publication in JCAP, version after referee comments</td> </tr> <tr> <td class="tablecell label">Subjects:</td> <td class="tablecell subjects"> <span class="primary-subject">High Energy Physics - Experiment (hep-ex)</span>; High Energy Physics - Phenomenology (hep-ph)</td> </tr> <tr> <td class="tablecell label">Report number:</td> <td class="tablecell jref">MPP-2018-18</td> </tr> <tr> <td class="tablecell label">Cite as:</td> <td class="tablecell arxivid"><span class="arxivid"><a href="https://arxiv.org/abs/1803.01243">arXiv:1803.01243</a> [hep-ex]</span></td> </tr> <tr> <td class="tablecell label"> </td> <td class="tablecell arxividv">(or <span class="arxivid"> <a href="https://arxiv.org/abs/1803.01243v2">arXiv:1803.01243v2</a> [hep-ex]</span> for this version) </td> </tr> <tr> <td class="tablecell label"> </td> <td class="tablecell arxivdoi"> <a href="https://doi.org/10.48550/arXiv.1803.01243" id="arxiv-doi-link">https://doi.org/10.48550/arXiv.1803.01243</a><div class="button-and-tooltip"> <button class="more-info" aria-describedby="more-info-desc-1"> <svg height="15" role="presentation" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z" class=""></path></svg> <span class="visually-hidden">Focus to learn more</span> </button>  <div role="tooltip" id="more-info-desc-1"> <span class="left-corner"></span> arXiv-issued DOI via DataCite</div> </div> </td> </tr> <tr> <td class="tablecell label"> <abbr title="Digital Object Identifier">Related DOI</abbr>: </td> <td class="tablecell doi"><a href="https://doi.org/10.1088/1475-7516/2018/05/040" data-doi="10.1088/1475-7516/2018/05/040" class="link-https link-external" rel="external noopener nofollow">https://doi.org/10.1088/1475-7516/2018/05/040</a>  <div class="button-and-tooltip"> <button class="more-info" aria-describedby="more-info-desc-1"> <svg height="15" role="presentation" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 110c23.196 0 42 18.804 42 42s-18.804 42-42 42-42-18.804-42-42 18.804-42 42-42zm56 254c0 6.627-5.373 12-12 12h-88c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h12v-64h-12c-6.627 0-12-5.373-12-12v-24c0-6.627 5.373-12 12-12h64c6.627 0 12 5.373 12 12v100h12c6.627 0 12 5.373 12 12v24z" class=""></path></svg> <span class="visually-hidden">Focus to learn more</span> </button>  <div role="tooltip" id="more-info-desc-1"> <span class="left-corner"></span> DOI(s) linking to related resources </div> </div> </td> </tr> </table> </div> </div> </div> <div class="submission-history"> <h2>Submission history</h2> From: Igor G. Irastorza [<a href="/show-email/52b9782c/1803.01243" rel="nofollow">view email</a>] <br/> <strong><a href="/abs/1803.01243v1" rel="nofollow">[v1]</a></strong> Sat, 3 Mar 2018 21:21:51 UTC (1,913 KB)<br/> <strong>[v2]</strong> Thu, 17 May 2018 20:01:08 UTC (1,913 KB)<br/> </div> </div>  <div class="extra-services"> <div class="full-text"> <a name="other"></a> <span class="descriptor">Full-text links:</span> <h2>Access Paper:</h2> <ul> <div id="download-button-info" hidden> View a PDF of the paper titled Axion Searches with Microwave Filters: the RADES project, by Alejandro \'Alvarez Melc\'on and 14 other authors</div><li><a href="/pdf/1803.01243" aria-describedby="download-button-info" accesskey="f" class="abs-button download-pdf">View PDF</a></li><li><a href="/src/1803.01243" class="abs-button download-eprint">TeX Source</a></li><li><a href="/format/1803.01243" class="abs-button download-format">Other Formats</a></li></ul> <div class="abs-license"><a 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[1803.01243] Axion Searches with Microwave Filters: the RADES project