MPY

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2017-12-11
13:12
[PUBDB-2017-13236] Contribution to a conference proceedings
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Studies of the Transverse Beam Coupling in the European XFEL Injector
38th International Free Electron Laser Conference, Meeting locationSanta Fe, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 3 pp. (2017)
Coupling between the transverse plains leads to an increase of the horizontal and vertical electron beam emittances. The coupling can be measured with dedicated multi quadrupole scans while the correlations of the beam are observed on a screen. [...]
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2017-12-11
13:08
OpenAccess [PUBDB-2017-13234] Poster
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Studies of the Transverse Beam Coupling in the European XFEL Injector
38th International Free Electron Laser Conference, Meeting locationSanta Fe, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25  GO
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2017-12-08
17:28
[PUBDB-2017-13102] Contribution to a conference proceedings
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Tomographic Reconstruction of the Transverse Electron Beam Phase Spaces Measured at the European XFEL Injector
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 4 pp. (2017)
The FEL process is determined by the 6D phase space distribution of relativistic electron bunches. Experimental reconstructions of these distributions are therefore a step foreward to understand the beam dynamics and to optimize FEL operation. [...]
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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
17:52
OpenAccess [PUBDB-2017-12553] Conference Presentation (Invited)
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Recent FEL Experiments at FLASH
38th International Free Electron Laser Conference, FEL2017, Meeting locationSanta Fe, United States, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25  GO
The FLASH free-electron laser user facility at DESY(Hamburg, Germany) provides high brilliance SASE FEL radiation in the XUV and soft X-ray wavelength range.With the recent installation of a second undulator beamline(FLASH2), variable gap undulators are now available.They now allow various experiments not possible with theFLASH1 fixed gap undulators. We report on experiments on tapering, harmonic lasing, reverse tapering, frequency doubling at FLASH2 and experiments using double pulses for specific SASE and THz experiments at FLASH1..
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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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2017-11-29
17:27
OpenAccess [PUBDB-2017-12551] Journal Article
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Experience with Multi-Beam and Multi-Beamline FEL-Operation
ddc:530
DESY’s free-electron laser FLASH provides soft X-ray pulses for scientific usersat wavelengths down to 4 nm simultaneously in two undulator beamlines. They are drivenby a common linear superconducting accelerator with a beam energy of up to 1.25 GeV. [...]
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2017-11-28
10:10
[PUBDB-2017-12419] Report/Journal Article
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Diffraction effects in the self-amplified spontaneous emission FEL
[TESLA-FEL-2002-02] ddc:530
In this paper we present a systematic approach for analytical description of SASE FEL (SASE: self-amplified spontaneous emission) in the linear mode. We calculate the average radiation power, radiation spectrum envelope, angular distribution of the radiation intensity in far zone, longitudinal and transverse correlation functions, degree of transverse coherence etc [...]
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2017-11-23
16:17
OpenAccess [PUBDB-2017-12256] Poster
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Quadrupole Scan Measurements in the Beam Transport Line between DESY II and PETRA III
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19  GO
PETRA III is a 6 GeV third generation synchrotron light source in Hamburg, Germany. The storage ring is operated with a typical beam current of 100 mA and is running in top-up mode. [...]
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2017-11-23
13:20
OpenAccess [PUBDB-2017-12252] Conference Presentation (Invited)

Status of the PETRA IV Accelerator Studies
PETRA IV Coherence Workshop, Meeting locationHamburg, Germany, 26 Jun 2017 - 28 Jun 20172017-06-262017-06-28  GO
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