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Contribution to a conference proceedings/Contribution to a book | PUBDB-2024-01779 |
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2024
JACoW Publishing
Geneva, Switzerland
ISBN: 978-3-95450-247-9
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Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2024-MOPG16 doi:10.3204/PUBDB-2024-01779
Abstract: FLASH, the XUV and soft X-ray free-electron laser user facility at DESY, is in the transitional period between two substantial upgrade shutdowns within the FLASH2020+ upgrade project. FLASH consists of a common part FLASH0 (injector & superconducting linac), two FEL beamlines (FLASH1/2) and an experimental beamline FLASH3, accommodating the plasma wakefield experiment FLASHForward. The first (2021/22) shutdown was aimed at upgrading FLASH0 and install an APPLE-III undulator in the otherwise unchainged beamline FLASH2, enhancing the third harmonic at flexible output polarization. The next (2024/25) shutdown will focus on the complete exchange of the FLASH1 beamline to allow for externally seeded operation in the range from 60 nm down to 4 nm at 1 MHz repetition rate (600 us trains at 10 Hz). We report on the operation between the two shutdowns which was, to a large extend, dedicated to FEL operation for users and on the commissioning of the new features implemented in the last shutdown.
Keyword(s): Accelerator Physics ; mc2-photon-sources-and-electron-accelerators - MC2: Photon Sources and Electron Accelerators ; MC2.A06 - MC2.A06 Free Electron Lasers
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