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Codes</a> </ul> </div>  </div> </div><div class="gd" id="gd-8"> <div class="container_24"> <div class="grid_10 prefix_1 suffix_1"> <form class="homePageSearchForm webSearchForm" method="post" action="https://www.bnl.gov/search/"> <span class="fa fa-globe fa-3x"></span><div> <input class="BNLinput webSearchField" name="q1" type="text" value="" maxlength="256" autocomplete="off" placeholder="Web Search..."> <input type="hidden" name="DIRECTORY_RESTRICT" value=""> <input type="hidden" name="SUBCOLLECTION" value="default_collection"> </div> </form> </div> <div class="grid_10 prefix_1"> <form class="homePageSearchForm peopleSearchForm" method="post" action="https://www.bnl.gov/search/"> <span class="fa fa-user fa-3x"></span><div> <input class="BNLinput peopleSearchField" name="q1" type="text" value="" maxlength="256" autocomplete="off" placeholder="People Search..."> <input type="hidden" name="DIRECTORY_RESTRICT" value=""> <input type="hidden" name="SUBCOLLECTION" value="people"> </div> </form> </div> <div class="grid_1"> <a class="closeGD menuClose" href="javascript:void(0);" title="Hide Search Fields"><span class="fa-stack fa-lg"> <i class="fa fa-square-o fa-stack-2x"></i> <i class="fa fa-close fa-stack-1x"></i> </span></a> </div> </div> </div> <div class="clear"></div><div id="stripe"> <div class="container_24" id="banner"> <div class="grid_24" > <span id="hamburger" class="fa fa-bars"></span> <span id="mobileSearchTrigger" class="fa fa-search"></span> <a id="bnlLogoLink" title="BNL Homepage" href="https://www.bnl.gov"> <img class="BNLlogo black" title="BNL Homepage" src="/assets/global/images/bnl-logo-2021.svg" /> <img class="BNLlogo white-gray" title="BNL Homepage" src="/assets/global/images/bnl-logo-white-2021.svg" /> </a> <div id="siteTitleContainer">Accelerator Test Facility<span class="small"></span></div> <div id="bs-blurb"></div> <div id="doeLogoContainer"> <a id="doeLogoLink" title="DOE Office of Science" href="http://science.energy.gov/"> <img class="DOElogo black" title="DOE Office of Science" src="/assets/global/images/logo-doe-black-200px.png" /> <img class="DOElogo white" title="DOE Office of Science" src="/assets/global/images/logo-doe-white-500px.png" /> </a> </div> </div> </div> </div> <div class="container_24" id="siteMenuContainer"> <div class="grid_24"> <ul id="siteMenu"> <li><a href="/atf/">Home</a> <li> <a href="/atf/capabilities/">Capabilities</a> <ul> <li><a href="/atf/capabilities/electron-beam-systems.php">Electron Beam Systems</a> <li><a href="/atf/capabilities/laser-systems.php">Laser Systems</a>  <li><a href="/atf/capabilities/beamlines.php">Beamlines</a> <li><a href="/atf/capabilities/data-aquisition.php">Data Acquisition</a> </ul> <li><a href="/atf/highlights.php">Science Highlights</a> <ul> <li><a href="/atf/highlights.php">Science Highlights</a> <li><a href="/atf/experiments/active.php">Active Experiments</a> <li><a href="/atf/experiments/completed.php">Completed Experiments</a> </ul> <li><a href="/atf/operations.php">Operations</a>  <li><a href="/atf/pubs/">Publications</a> <li> <a href="javascript:void(0);">ES&H</a> <ul> <li><a href="/atf/users/startup.php">Experiment Start-up</a> <li><a href="/atf/safety/lasersafety.php">Laser Safety</a> <li><p>Collider-Accelerator Dept.</p> <li><a href="http://www.c-ad.bnl.gov/ESSHQ/SND/info.htm">C-AD ES&H Resources</a> </ul> <li><a href="/atf/staff.php">Staff</a> <li><a href="/atf/users/">Users' Place</a> <li><a href="/atf/access.php">Apply for Access</a> </ul> </div> </div>  <div id="heroGraphic" class="flexslider"> <ul class="slides"> <li><img alt="ATF photo" src="images/slideshow/slide-01-d0941018.jpg" /></li> <li><img alt="ATF photo" src="images/slideshow/slide-03-d2080513.jpg" /></li> <li><img alt="ATF photo" src="images/slideshow/slide-05.jpg" /></li> <li><img alt="ATF photo" src="images/slideshow/slide-02-d0981018.jpg" /></li> </ul> <div class="intro"> <h1>A User Facility for Advanced Accelerator & Laser Research</h1> <p>Part of the DOE Accelerator Stewardship Program</p> </div> </div> <div class="container_24">  <div class="grid_15 suffix_1">  <p class="font-plus-2">The Accelerator Test Facility (ATF) is the DOE Office of Science User Facility for the <a target="_blank" href="http://science.energy.gov/hep/research/accelerator-rd-stewardship/"> Accelerator Stewardship Program.</a> It provides users with high brightness electron beams, near-infrared (NIR) and long-wave infrared (LWIR) laser beams, and an ultrafast electron diffraction (UED) facility. User proposals are reviewed by the <a href="pac.php">ATF Program Advisory Committee</a> and meritorious proposals that advance the science or technology of accelerators and lasers are granted beam time.</p> <p class="font-plus-2" style=margin-bottom:3em;>The ATF pioneered the concept of a user facility studying properties of modern accelerators and new techniques of particle acceleration over 25 years ago. Its role continues to evolve as a valuable resource to the advanced accelerator and laser user community.</p> <hr style="padding-bottom:2em;" /> <div class="grid_12 alpha"> <h4>Electron Beam Capability</h4> <p>High-brightness, 75 MeV, sub-picosecond, 3 kA electron bunches are delivered to the experimental hall where user experiments can be executed in two beam lines. The experimental beam lines are fully equipped with beam manipulation and diagnostic capabilities as well as special insertion devices to support diverse user requirements. The unique capabilities available at the ATF include the possibility to combine the electron beam with synchronized high-power LWIR and NIR lasers.</p> <h4>NIR Laser Capability</h4> <p>The ATF鈥檚 Nd:YAG laser system, which drives the facility鈥檚 photocathode RF gun, delivers beams (1064 nm and 532 nm) for users can be used for both physics and diagnostic purposes. </p> <p>A new Ti:Sapphire laser system has recently been deployed in collaboration with colleagues from the Naval Research Laboratory. This system can deliver over 10 mJ to user experiments in a <55 fs FWHM pulse. A further upgrade to deliver TW-class beams to user experiments is scheduled to come online in 2021.</p> <p>Both the Nd:YAG laser and the Ti:Sapphire laser can be synchronized and used in combination with the facility鈥檚 electron beams and LWIR laser.</p> </div> <div class="grid_12 omega"> <h4>LWIR Laser Capability</h4> <p>ATF's unique 5 terawatt and 2 picosecond LWIR (9.2 碌m) <a href="capabilities/co2laser.php">carbon dioxide laser </a>is the first gas-based laser in the world to utilize chirped pulse amplification (CPA). With it, ATF users can explore the long-wavelength scaling of various physical processes and new approaches to particle acceleration and x-ray generation. Additionally, the ATF R&D program is underway that will lay the groundwork for providing compressed pulse-widths in the sub-picosecond domain with peak powers measured in the tens of terawatts.</p> <h4>UED Facility</h4> <p>The Ultrafast Electron Diffraction (UED) Facility supplies 3 MeV electron beams to study structural properties of materials. The facility supports the development of new UED approaches as well as technology development for ultrafast electron microscopy applications.</p> <p>Electron beams are supplied from a 1.6-cell S-band photocathode RF gun operating with a repetition rate of up to 48 Hz. A Ti:Sapphire laser system provides sample pumping capability along with femtosecond-class electron pulses from the RF gun. </p> <p>The system supports TEM-style samples (3mm diameter) that can be cryogenically cooled. A high efficiency detector, based on an Andor camera, is mounted 4 meters downstream and provides shot-by-shot electron diffraction pattern measurements.</p> </div> <div class="clear"></div> <hr> <h3 class="baseColor thin">Research Opportunities</h3> <p>The unique combination of a high-brightness electron beam and high-power picosecond CO<sub>2</sub> laser opens unsurpassed opportunities for user exploration of new ideas for advanced particle accelerators and radiation sources.</p> <div class="center"> <img style="padding:2em 0 3em 0" alt="Research Opportunities" src="images/researchopportunities.jpg" /> </div> <p>This diagram highlights variety of user experiments from past and present enabled by the ATF鈥檚 e-beam and laser used separately or in their combination. Browse through the <a target="_blank" href="docs/atfupgrade.pdf">Upgrade Proposal</a> pages to learn about ATF鈥檚 milestone contributions to the accelerator science and new opportunities for advanced studies after the planned facility upgrade. This upgrade is supported by a BNL Program Development grant and enabled by the DOE, Office of High-Energy Physics.</p> </div> <div class="grid_8"> <div id="tabs" style="margin-bottom:3em;"> <ul> <li><a href="#tabs-1">Leadership</a></li> <li><a href="#tabs-2">Administrative</a></li> <li><a href="#tabs-3">All Staff</a></li> </ul> <div id="tabs-1"> <ul class='staffBioCards cardType2 images'> <li ln='25723'> <div class='imageContainer'><img alt='Mark Palmer' src='https://www.bnl.gov/staff/pics/square/25723.jpg' onerror='this.onerror=null;this.src="https://www.bnl.gov/staff/pics/square/no-photo.jpg";' ></div><div class='textContainer'><a title='Full Bio' href='https://www.bnl.gov/staff/mpalmer'><h5>Mark Palmer</h5></a> <p class='jobTitle'>Chair</p> <p class='contactInfo'><span class='phone'>(631) 344-8841</span>, <span class='email'><a href='mailto:mpalmer@bnl.gov'>mpalmer@bnl.gov</a></span></p> </div></ul> </div> <div id="tabs-2"> <ul class='staffBioCards cardType2 images'> <li ln='26423'> <div class='imageContainer'><img alt='Mary Jane Ilardi' src='https://www.bnl.gov/staff/pics/square/26423.jpg' onerror='this.onerror=null;this.src="https://www.bnl.gov/staff/pics/square/no-photo.jpg";' ></div><div class='textContainer'><a title='Full Bio' href='https://www.bnl.gov/staff/milardi'><h5>Mary Jane Ilardi</h5></a> <p class='jobTitle'>Interdisciplinary Administrative Specialist</p> <p class='contactInfo'><span class='phone'>(631) 344-6361</span>, <span class='email'><a href='mailto:milardi@bnl.gov'>milardi@bnl.gov</a></span></p> </div></ul> </div> <div id="tabs-3"> <div class="center"> <a class="button reversed" href="staff.php">Staff Directory</a> <a class="button reversed" href="/orgcharts/af.pdf">Org Chart (PDF)</a> </div> </div> </div> <div class="sidebar"> <h3>News & Announcements</h3> <ul id='announcementsList'> <li> <a href='https://www.bnl.gov/atfusersmeeting/events/'><span class='fa fa-info-circle fa-lg'></span><p>ATF Users' Meeting Archive</p> </a> </li> </ul> <ul class="linkList2 fa-ul extraannouncements"> <li><a href="/atfspw/"><i class="fa-li fa fa-external-link"></i>ATF Science Planning Workshop 2024</a></li>  </ul> </div> <div class="sidebar"> <h3>ATF Experiments</h3> <p><a class="small button" href="experiments/active.php">Active Experiments</a><a class="small button" href="experiments/completed.php">Past Experiments</a></p> </div> <div class='videoPlayer'> <div class='flash-center' style='width:2400px;'> <div class='flash-player responsiveVideo'> <iframe width='2400' height='1350' src='https://www.youtube.com/embed/bp2FrP77-_0?rel=0&fs=0&wmode=transparent&showinfo=0&hd=1&autoplay=0' frameborder='0' allowfullscreen></iframe> </div> </div> </div> <div class='currentVideoInformation'> <ul class='videoSummaries'><li><h3>About the ATF</h3> <p class='date'>October 4, 2019</p> <p>The Accelerator Test Facility (ATF) is a proposal driven, Program Advisory Committee reviewed facility that provides users with high-brightness electron- and laser-beams. The ATF pioneered the concept of a user facility studying properties of modern accelerators and new techniques of particle acceleration over 25 years ago. It remains a valuable resource to the user community. ATF serves the U.S. Dept. of Energy Accelerator Stewardship program.</p> <div class='clear'></div> </ul> </div> <div class="sidebar"> <h3>Facility Users</h3> <p>Collaborating with over 20 different institutions over its lifetime, ATF has close ties with national and international universities, laboratories and small businesses.</p> </div> <div class="boxed"> <p class="font-1" style="margin: 0;">The Accelerator Test Facility is a member of the <a target="_blank" href="http://www.ssurf.org/">Society for Science at User Research Facilities</a> (SSURF), which represents the interests of all users who conduct research at U.S. national scientific user facilities, as well as scientists from U.S. universities, laboratories, and industry who use similar facilities outside the United States.</p> </div> </div>  </div> </div> <div id="topOfPage"><span class="fa fa-chevron-circle-up fa-lg topOfPageTrigger"></span></div> <div class="footer" id="footer" > <div class="container_24"> <div class="grid_6"> <h3 id="BNL">Brookhaven National Laboratory</h3> <p>PO Box 5000<br/> Upton, NY 11973-5000<br/> (631) 344-8000</p> <p><a id="contactUs" class="extrasmall white button" href="https://www.bnl.gov/contact-us/">Contact us</a></p> <ul class="socialMediaIcons"> <li><a target="_blank" href="https://twitter.com/BrookhavenLab" title="Follow Us on 𝕏"><i class="fa-brands fa-square-x-twitter fa-2x"></i></a> <li><a target="_blank" href="https://www.facebook.com/brookhavenlab" title="Follow Us on Facebook"><span class="fa fa-facebook-square fa-2x"></span></a> <li><a target="_blank" href="https://www.instagram.com/brookhavenlab/" title="Follow Us on Instagram"><span class="fa fa-instagram fa-2x"></span></a> <li><a target="_blank" href="https://www.linkedin.com/company/brookhavenlab/" title="Follow Us on LinkedIn"><span class="fa fa-linkedin-square fa-2x"></span></a> <li><a target="_blank" href="https://www.youtube.com/BrookhavenLab" title="Follow Us on YouTube"><span class="fa fa-youtube-square fa-2x"></span></a> <li><a target="_blank" href="http://www.flickr.com/brookhavenlab/" title="Follow Us on Flickr"><span class="fa fa-flickr fa-2x"></span></a> </ul> </div> <div class="grid_3"> <ul class="linkList2"> <li><a href="https://www.bnl.gov/science/">Our Science</a></li> <li><a href="https://www.bnl.gov/about/">About</a></li> <li><a href="https://www.bnl.gov/about/history/">History</a></li> <li><a href="https://www.bnl.gov/about/org/">Leadership</a></li> <li><a href="https://www.bnl.gov/visiting/">Visiting the Lab</a></li> <li><a href="https://www.bnl.gov/siteindex/">Site Index</a></li> <li><a href="https://www.bnl.gov/directory/">Staff Directory</a></li> </ul> </div> <div class="grid_3"> <ul class="linkList2"> <li><a target="_blank" href="https://jobs.bnl.gov/">Careers</a></li> <li><a href="https://www.bnl.gov/science/facilities.php">Facilities</a></li> <li><a href="https://www.bnl.gov/guv/">Guest Center</a></li> <li><a href="https://www.bnl.gov/partner/">Partnerships</a></li> <li><a href="https://www.bnl.gov/ppm/">For Vendors</a></li> <li><a id="deptLink" href="javascript:void(0);">Departments</a></li> <li><a href="https://www.bnl.gov/visiting/events/">Public Events</a></li> </ul> </div> <div class="grid_4"> <ul class="linkList2 lastList"> <li><a href="https://www.bnl.gov/diversity/">Diversity, Equity & Inclusion</a></li> <li><a href="https://www.bnl.gov/techtransfer/">Technology Licensing</a></li> <li><a href="https://www.bnl.gov/externalaffairs/">Stakeholder Relations</a></li> <li><a href="https://www.bnl.gov/education/">Students & Educators</a></li> <li><a href="https://www.bnl.gov/about/sustainability/">Sustainability</a></li> <li><a href="https://www.bnl.gov/privacy/">Privacy and Security Notice</a></li> <li><a target="_blank" href="https://doe.responsibledisclosure.com/hc/en-us">Vulnerability Disclosure Program</a></li> </ul> </div> <div class="grid_7 prefix_1"> <h3 id="BSA">Brookhaven Science Associates</h3> <p>Brookhaven Science Associates manages and operates Brookhaven National Laboratory on behalf of the U.S. Department of Energy's Office of Science. 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