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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1801.07503">arXiv:1801.07503</a> <span> [<a href="https://arxiv.org/pdf/1801.07503">pdf</a>, <a href="https://arxiv.org/format/1801.07503">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.nima.2018.01.088">10.1016/j.nima.2018.01.088 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Simulations and plans for possible DLA experiments at SINBAD </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Mayet%2C+F">Frank Mayet</a>, <a href="/search/physics?searchtype=author&query=Assmann%2C+R">Ralph Assmann</a>, <a href="/search/physics?searchtype=author&query=Boedewadt%2C+J">Joern Boedewadt</a>, <a href="/search/physics?searchtype=author&query=Brinkmann%2C+R">Reinhard Brinkmann</a>, <a href="/search/physics?searchtype=author&query=Dorda%2C+U">Ulrich Dorda</a>, <a href="/search/physics?searchtype=author&query=Kuropka%2C+W">Willi Kuropka</a>, <a href="/search/physics?searchtype=author&query=Lechner%2C+C">Christoph Lechner</a>, <a href="/search/physics?searchtype=author&query=Marchetti%2C+B">Barbara Marchetti</a>, <a href="/search/physics?searchtype=author&query=Zhu%2C+J">Jun Zhu</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1801.07503v1-abstract-short" style="display: inline;"> In this work we present the outlines of possible experiments for dielectric laser acceleration (DLA) of ultra-short relativistic electron bunches produced by the ARES linac, currently under construction at the SINBAD facility (DESY Hamburg). The experiments are to be performed as part of the Accelerator on a Chip International Program (ACHIP), funded by the Gordon and Betty Moore Foundation. At SI… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.07503v1-abstract-full').style.display = 'inline'; document.getElementById('1801.07503v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1801.07503v1-abstract-full" style="display: none;"> In this work we present the outlines of possible experiments for dielectric laser acceleration (DLA) of ultra-short relativistic electron bunches produced by the ARES linac, currently under construction at the SINBAD facility (DESY Hamburg). The experiments are to be performed as part of the Accelerator on a Chip International Program (ACHIP), funded by the Gordon and Betty Moore Foundation. At SINBAD we plan to test the acceleration of already pre-accelerated relativistic electron bunches in laser-illuminated dielectric grating structures. We present outlines of both the acceleration of ultra-short single bunches, as well as the option to accelerate phase-synchronous sub-fs microbunch trains. Here the electron bunch is conditioned prior to the injection by interaction with an external laser field in an undulator. This generates a sinusoidal energy modulation that is transformed into periodic microbunches in a subsequent chicane. The phase synchronization is achieved by driving both the modulation process and the DLA with the same laser pulse. In addition to the conceptual layouts and plans of the experiments we present start-to-end simulation results for different ARES working points. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1801.07503v1-abstract-full').style.display = 'none'; document.getElementById('1801.07503v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2018. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">EAAC'17 conference proceedings</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1604.06658">arXiv:1604.06658</a> <span> [<a href="https://arxiv.org/pdf/1604.06658">pdf</a>, <a href="https://arxiv.org/ps/1604.06658">ps</a>, <a href="https://arxiv.org/format/1604.06658">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevAccelBeams.20.042802">10.1103/PhysRevAccelBeams.20.042802 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Confining continuous manipulations of accelerator beamline optics </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Amstutz%2C+P">Philipp Amstutz</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+S">Sven Ackermann</a>, <a href="/search/physics?searchtype=author&query=B%C3%B6dewadt%2C+J">J枚rn B枚dewadt</a>, <a href="/search/physics?searchtype=author&query=Lechner%2C+C">Christoph Lechner</a>, <a href="/search/physics?searchtype=author&query=Plath%2C+T">Tim Plath</a>, <a href="/search/physics?searchtype=author&query=Vogt%2C+M">Mathias Vogt</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1604.06658v1-abstract-short" style="display: inline;"> Altering the optics in one section of a linear accelerator beamline will in general cause an alteration of the optics in all downstream sections. In circular accelerators, changing the optical properties of any beamline element will have an impact on the optical functions throughout the whole machine. In many cases, however, it is desirable to change the optics in a certain beamline section withou… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.06658v1-abstract-full').style.display = 'inline'; document.getElementById('1604.06658v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1604.06658v1-abstract-full" style="display: none;"> Altering the optics in one section of a linear accelerator beamline will in general cause an alteration of the optics in all downstream sections. In circular accelerators, changing the optical properties of any beamline element will have an impact on the optical functions throughout the whole machine. In many cases, however, it is desirable to change the optics in a certain beamline section without disturbing any other parts of the machine. Such a local optics manipulation can be achieved by adjusting a number of additional corrector magnets that restore the initial optics after the manipulated section. In that case, the effect of the manipulation is confined in the region between the manipulated and the correcting beamline elements. Introducing a manipulation continuously, while the machine is operating, therefore requires continuous correction functions to be applied to the correcting quadrupole magnets. In this paper we present an analytic approach to calculate such continuous correction functions for six quadrupole magnets by means of a homotopy method. Besides a detailed derivation of the method, we present its application to an algebraic example, as well as its implementation at the seeding experiment sFLASH at the free-electron laser FLASH located at DESY in Hamburg. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1604.06658v1-abstract-full').style.display = 'none'; document.getElementById('1604.06658v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 April, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">6 pages, 6 figures, to be submitted to PRAB</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> DESY 16-071 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Accel. 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