Accelerator · PETRA IV

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col-sm-10"> <h1>Accelerator</h1> <p class="">PETRA IV will be a fourth-generation synchrotron radiation source with which the principle of storage-ring-based light sources reaches its physical limit. It will be built in the existing 2300-metre ring tunnel of PETRA III, and the existing instruments and infrastructure will be partially recycled.</p> </div> </div> </div> </div> </div>   <div class="container d2yStandalone"> <div class="row"> <div class="sg-content-wrapper col-12 col-lg-10 col-xxl-10 m-auto">   <div class="row"> <div class="col-10 m-auto px-0 px-sm-4 px-md-5 pt-3"> <h2><strong>A significant conversion step </strong></h2> <p>The existing electromagnets in the storage ring will be replaced by a larger number of permanent magnets. Around 4000 magnets are to be installed around the ring. This will also help to save energy because, unlike electromagnets, permanent magnets do not require any electric current to run. </p> </div> </div>   <div class="row"> <div class="col-12 col-sm-10 m-auto px-0 px-sm-4 px-md-5 pt-3"> <figure class="d-flex flex-column"> <img width="900" src="/sites/desy/microsites/petra-4/content/e3180/e3181/e9711/e3184/Magnet-Bauteil_900px_ger.jpg" alt="View through a quadrupole electromagnet." title="View through a quadrupole electromagnet."> <figcaption class="col-10 col-sm-12 pt-3 m-auto">View through a magnet, here a quadrupole electromagnet. Image: DESY, Rolf Otzipka</figcaption> </figure> </div> </div>   <div class="row"> <div class="col-10 m-auto px-0 px-sm-4 px-md-5 pt-3"> <p>By installing the new magnets, the experts have one main goal: The permanent magnets force the electrons bunches in the ring onto a much more precise circular path. Thanks to the more precise deflection, the electrons bunches will be held together much more tightly than before.</p> </div> </div>   <div class="row"> <div class="col-10 m-auto px-0 px-sm-4 px-md-5 pt-3"> <div class="sg-quote mt-5 mb-5"> <figure class="sg-quote-body"> <blockquote>“The smaller electron bunches will emit X-rays that are much more narrowly focused, by a factor of 100 to 1000.”</blockquote> <img class="rounded-circle" src="/sites/desy/microsites/petra-4/content/e3180/e3181/e9711/e3186/Schroer350x350portrait-quote_ger.jpg" alt="Portrait of Christian Schroer" title="Portrait of Christian Schroer"> <figcaption> <cite> <span>Christian Schroer</span> DESY physicist and scientific director of PETRA III </cite> </figcaption> </figure> </div> </div> </div>    <div class="row"> <div class="col-10 m-auto px-0 px-sm-4 px-md-5"> <div class="sg-single-teaser card border-0 rounded-0 mt-5 mb-5"> <div class="row g-0"> <div class="col-xl-4"> <img width="640" src="/sites/desy/microsites/petra-4/content/e3180/e3181/e9711/e3547/Jana-Baker-teaser-card_ger.jpg" alt="Jana Barker, engineer at DESY, and a colleague check the accelerator's magnets." title="Jana Barker, engineer at DESY, and a colleague check the accelerator's magnets."> </div> <div class="col-xl-8"> <div class="card-body"> <h3 class="card-title"> <a class="stretched-link" href="https://petra4.desy.de/petra_iv/accelerators/jana_barker/index_eng.html" rel="" target="_self">Magnets are the heart of PETRA IV</a> </h3> <p class="card-text">Jana Barker monitors the transport of the support frames for the PETRA IV magnets, which weigh several tonnes, with high-precision instruments.</p> <p class="card-text link-text d-none d-md-block">Learn more</p> </div> </div> </div> </div> </div> </div>       <div class="row"> <div class="col-10 m-auto px-0 px-sm-4 px-md-5"> <div class="sg-single-teaser card border-0 rounded-0 mt-5 mb-5"> <div class="row g-0"> <div class="col-xl-4"> <img width="1304" src="/sites/desy/microsites/petra-4/content/e3180/e3181/e9711/e7305/Magnete11_ger.jpg" alt="Transport of a magnet" title="Transport of a magnet"> </div> <div class="col-xl-8"> <div class="card-body"> <h3 class="card-title"> <a class="stretched-link" href="https://petra4.desy.de/petra_iv/accelerators/the_best_accelerator_in_the_world/index_eng.html" rel="" target="_self">Der beste Beschleuniger der Welt</a> </h3> <p class="card-text">PETRA IV will be built according to an innovative design and will become a world leader.<br />  </p> <p class="card-text link-text d-none d-md-block">Learn more</p> </div> </div> </div> </div> </div> </div>      <div class="mb-md-3 text-center"> <a class="sg-icon-glossar" style="" href="https://petra4.desy.de/glossary/index_eng.html" rel="external noopener" target="_self">Glossary</a> </div>   <div class="row"> <div class="col-10 sg-contact-card-wrapper"> <div class="card sg-no-hover border-0 rounded-0 mb-4 px-0 sg-contact-card"> <div class="row g-0"> <div class="col-12 col-sm-4 align-items-center justify-content-center align-items-md-start d-flex pt-3 p-lg-3 p-md-1"> <img class="img-fluid rounded-circle" src="/sites/desy/microsites/petra-4/content/e3180/e3181/e9711/e4262/DESYlogo350x350portrait-quote_ger.jpg" alt="Contact DESY Photon Science" title=""> </div> <div class="col-sm-8"> <div class="card-body"> <div class="meta-info"> <span>Contact</span> </div> <h3 class="card-title">PETRA IV Project Office</h3> <p class="card-text d-none d-md-block">Would you like information about the PETRA IV project, or do you wish to learn more about the scientific facts behind PETRA IV? 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