Contribution to a book

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2017-12-07
14:42
OpenAccess [PUBDB-2017-12899] Contribution to a conference proceedings/Contribution to a book
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Extraction of the Longitudinal Profile of the Transverse Emittance From Single-Shot RF Deflector Measurements at sFLASH
38th International Free Electron Laser Conference, FEL2017, Meeting locationSanta Fe, NM, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 4 pp. (2017) [10.3204/PUBDB-2017-12899]  GO
The gain length of the free-electron laser (FEL) process strongly depends on the slice energy spread, slice emittance, and current of the electron bunch. At an FEL with only moderately compressed electron bunches, the slice energy spread is mainly determined by the compression process. [...]
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2017-12-07
14:37
OpenAccess [PUBDB-2017-12896] Contribution to a conference proceedings/Contribution to a book
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Determination of the Slice Energy Spread of Ultra-Relativistic Electron Beams by Scanning Seeded Coherent Undulator Radiation
38th International Free Electron Laser Conference, FEL2017, Meeting locationSanta Fe, NM, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 3 pp. (2017) [10.3204/PUBDB-2017-12896]  GO
Modern high-gain free-electron lasers make use of high-brightness ultra-relativistic electron beams. The uncorrelated energy spread of these beams is upon creation of the beam in the sub-permille range and below the resolution of state-of-the-art diagnostics. [...]
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2017-12-07
13:58
OpenAccess [PUBDB-2017-12869] Contribution to a conference proceedings/Contribution to a book
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Experience in Operating sFLASH With High-Gain Harmonic Generation
8th International Particle Accelerator Conference, IPAC17, Meeting locationKopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 Geneva : JACoW, 2596-2599 (2017) [10.18429/JACoW-IPAC2017-WEPAB016]  GO
sFLASH, the experimental setup for external seeding of free-electron lasers (FEL) at FLASH, has been operated in the high-gain harmonic generation (HGHG) mode. A detailed characterization of the laser-induced energy modulation, as well as the temporal characterization of the seeded FEL pulses is possible by using a transverse deflecting structure and an electron spectrometer. [...]
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2017-12-07
13:54
OpenAccess [PUBDB-2017-12867] Contribution to a conference proceedings/Contribution to a book
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Parameter Optimization for Operation of sFLASH With Echo-Enabled Harmonic Generation
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 Geneva : JACoW, 2592-2595 (2017) [10.18429/JACoW-IPAC2017-WEPAB015]  GO
The free-electron laser facility FLASH has a dedicated experimental setup for external FEL seeding applications for the XUV and soft x-ray spectral range. Recently the setup is operated as high-gain harmonic generation FEL. [...]
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2017-11-29
18:09
OpenAccess [PUBDB-2017-12555] Contribution to a conference proceedings/Contribution to a book

Status of the FLASH FEL User Facility at DESY
38th International Free Electron Laser Conference, FEL2017, Meeting locationSanta Fe, United States, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 5 pp. (2017) [10.3204/PUBDB-2017-12555]  GO
The FLASH facility at DESY (Hamburg, Germany) provides high brilliance FEL radiation at XUV and soft X-raywavelengths for user experiments. Since April 2016, the second undulator beamline, FLASH2, is in user operation. [...]
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2017-11-29
18:03
[PUBDB-2017-12554] Contribution to a conference proceedings/Contribution to a book
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Update on the lifetime of Cs2Te cathodes operated at the FLASH facility
38th International Free Electron Laser Conference, FEL2017, Meeting locationSanta Fe, United States, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 1 pp. (2017)
The photoinjector of the free-electron laser facility FLASH at DESY (Hamburg, Germany) uses Cs2Te photocathodes.We give an update on lifetime and quantumefficiency of cathodes operated at FLASH during the lastyears. At the time of the conference, cathode 73.3 has been operated with a record of 933 days with a stable quantum efficiency of in average 8.8 %..
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2017-11-29
17:42
[PUBDB-2017-12552] Contribution to a conference proceedings/Contribution to a book
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Experience with Multi-Beam and Multi-Beamline FEL-Operation
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 2615-2617 (2017)
DESY’s free-electron laser FLASH provides soft X-raypulses for scientific users at wavelengths down to 4 nm simultaneously in two undulator beamlines. They are driven by a common linear superconducting accelerator with a beamenergy of up to 1.25 GeV. [...]
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2017-11-28
11:47
[PUBDB-2017-12435] Contribution to a conference proceedings/Contribution to a book
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In Situ X-Ray Synchrotron Profile Analysis During High Pressure Torsion of Ti
Magnesium Technology
TMS 2017 Annual Meeting, TMS 2017, Meeting locationSan Diego, USA, 27 Feb 2017 - 3 Mar 20172017-02-272017-03-03
Cham : The Minerals, Metals & Materials Society, The Minerals, Metals & Materials series, 645-651 (2017) [10.1007/978-3-319-52392-7_89]  GO
ddc:620
X-Ray Line Profile Analysis is a powerful method to characterize the microstructure of deformed materials, especially when high energy and brilliant Synchrotron radiation enables investigations with high time and spatial resolution. Parameters like dislocation density, dislocation arrangement as well as scattering domain size and it's distribution are parameters of a physical model of peak broadening, which can be applied to high quality diffraction measurements. [...]
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2017-11-28
06:00
OpenAccess [PUBDB-2017-12412] Contribution to a conference proceedings/Contribution to a book
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Commissioning of the European XFEL Accelerator
8th International Particle Accelerator Conference, IPAC17, Meeting locationKopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 Geneva : JACoW, 6 pp. (2017) [10.18429/JACoW-IPAC2017-MOXAA1]  GO
The European XFEL uses the world's largest superconducting RF installation to drive three independent SASE FELs. After eight years of construction the facility is now brought into operation. [...]
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2017-11-22
11:40
OpenAccess [PUBDB-2017-12226] Contribution to a conference proceedings/Contribution to a book
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Control System Integration of a MicroTCA.4 Based Digital LLRF Using the ChimeraTK OPC UA Adapter
16th International Conference on Accelerator and Large Experimental Control Systems, ICALEPCS2017, Meeting locationBarcelona, Spain, 8 Oct 2017 - 13 Oct 20172017-10-082017-10-13 4 pp. (2017) [10.3204/PUBDB-2017-12226]  GO
The superconducting linear electron accelerator ELBE at Helmholtz-Zentrum Dresden-Rossendorf is a versatile light source. It operates in continuous wave (CW) mode to provide a high average beam current. [...]
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