CFEL-ACC

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2018-05-28
12:49
OpenAccess [PUBDB-2018-02117] Contribution to a conference proceedings
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An Option to Generate Seeded FEL Radiation for FLASH1
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 4 pp. () [10.3204/PUBDB-2018-02117]  GO
The FLASH free-electron laser (FEL) at DESY is currently operated in self-amplified spontaneous emission (SASE) mode in both beamlines FLASH1 and FLASH2. Seeding offers unique properties for the FEL pulse, such as full coherence, spectral and temporal stability [...]
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2018-05-24
10:15
[PUBDB-2018-02086] Poster
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An Option to Generate Seeded FEL Radiation for FLASH1
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04
The FLASH free-electron laser (FEL) at DESY is currently operated in self-amplified spontaneous emission (SASE) mode in both beamlines FLASH1 and FLASH2. Seeding offers unique properties for the FEL pulse, such as full coherence, spectral and temporal stability. [...]

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2018-05-09
14:08
OpenAccess [PUBDB-2018-01937] Book/Report/Dissertation / PhD Thesis
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Generation of ultra-short low-charge electron bunches for single-spike SASE radiation at the Free-Electron Laser in Hamburg
[DESY-THESIS-2018-015]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 144 pp. () [10.3204/PUBDB-2018-01937] = Dissertation, Universität Hamburg, 2017  GO
High-gain Free-Electron Lasers (FEL) constitute a powerful source of intense, short radiation pulses in the XUV and X-ray range that are used in a wide variety of research fields. They typically work in the Self-Amplified Spontaneous Emission (SASE) Mode. [...]
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2018-03-29
13:22
[PUBDB-2018-01601] Contribution to a conference proceedings/Contribution to a book
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Operation of a seeded XUV free electron laser at DESY with high-gain harmonic generation seeding
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2017. - ISBN 978-1-943580-27-9 - doi:10.1364/CLEO_AT.2017.JTu4L.5
CLEO: Applications and Technology, CLEO 2017, San JoseSan Jose, California, 14 May 2017 - 19 May 20172017-05-142017-05-19
Washington, DC : OSA, OSA technical digest (online) JTu4L.5 () [10.1364/CLEO_AT.2017.JTu4L.5]  GO
The XUV free electron laser FLASH has been recently operated in the high-gain harmonic generation (HGHG) mode. We characterized the laser-induced energy modulation, as well as the temporal profile of the seeded FEL pulses. [...]

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2017-12-17
22:45
OpenAccess [PUBDB-2017-13571] Contribution to a conference proceedings/Contribution to a book
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Concept for a Seeded FEL at FLASH2
38th International Free-Electron Laser Conference, FEL 2017, Santa FeSanta Fe, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25 JACoW 4 pp. () [10.3204/PUBDB-2017-13571]  GO
The free-elec­tron laser (FEL) FLASH is a user fa­cil­ity de­liv­er­ing pho­ton pulses down to 4 nm wave­length. Re­cently, the sec­ond FEL un­du­la­tor beam­line 'FLASH2' was added to the fa­cil­ity. [...]
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2017-12-07
14:54
OpenAccess [PUBDB-2017-12900] Journal Article
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Direct Measurement of the Pulse Duration and Frequency Chirp of Seeded XUV Free Electron Laser Pulses
We report on a direct time-domain measurement of the temporal properties of a seeded free-electron laser pulse in the extreme ultraviolet spectral range. Utilizing the oscillating electromagnetic field of terahertz radiation, a single-shot THz streak-camera was applied for measuring the duration as well as spectral phase of the generated intense XUV pulses. [...]
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ddc:530
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2017-11-13
14:53
[PUBDB-2017-11901] Contribution to a conference proceedings/Contribution to a book
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Status of the Seeding Development at sFLASH
Proceedings of FEL2017, Santa Fe, NM, USA
38th International Free-Electron Laser Conference, FEL 2017, Santa FeSanta Fe, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25
100-103 ()
sFLASH is the experimental free-electron laser (FEL) setup producing seeded radiation installed at FLASH. Since 2015 it has been operated in the high-gain harmonic generation(HGHG) mode [...]

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2017-06-09
10:53
OpenAccess [PUBDB-2017-04587] Journal Article
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Mapping few-femtosecond slices of ultra-relativistic electron bunches
Free-electron lasers are unique sources of intense and ultra-short x-ray pulses that led to major scientific breakthroughs across disciplines from matter to materials and life sciences. The essential element of these devices are micrometer-sized electron bunches with high peak currents, low energy spread, and low emittance. [...]
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ddc:000
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2016-12-28
00:29
[PUBDB-2016-06714] Dissertation / PhD Thesis
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Temporal Control of Laser-Electron Interaction at High-Gain Free-Electron Lasers
151 pp. () = University of Hamburg, Diss., 2015
High-gain free-electron lasers (FELs) generate ultra-short photon pulses with unparalleled intensities at wavelengths down to the sub-angström range. The exponential amplification process in these devices is initiated by spontaneous undulator radiation emitted by the electron bunch at the beginning of the undulator. [...]

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