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2018-01-17
16:33
OpenAccess [PUBDB-2018-00677] Contribution to a conference proceedings/Contribution to a book
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Automating Operation Statistics at PETRA-3
16th International Conference on Accelerator and Large Experimental Control Systems, ICALEPCS2017, Meeting locationBarcelona, Spain, 8 Oct 2017 - 13 Oct 20172017-10-082017-10-13 JACoW, 4 pp. (2017) [10.3204/PUBDB-2018-00677]  GO
The quoted machine availability of a particle accelerator over some time range is usually hand-generated by a machine coordinator, who pores over archived operations parameters and logbook entries for the time period in question. When the machine is deemed unavailable for operations, 'blame' is typically assigned to one or more machine sub-systems. [...]
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2017-12-21
14:25
[PUBDB-2017-13964] Contribution to a conference proceedings
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Online Longitudinal Bunch Profile and Slice Emittance Diagnostics at the European XFEL
6th International Beam Instrumentation Conference, IBIC 17, Meeting locationGrand Rapids, Michigan, USA, 20 Aug 2017 - 24 Aug 20172017-08-202017-08-24 1-3 (2017)
The longitudinal current profile and slice emittance are important bunch parameters for the operation of an X-ray free-electron laser. At the European XFEL, dedicated diagnostic sections equipped with transverse deflecting RF structures (TDS) have been installed for the control and optimisation of these parameters. [...]
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2017-12-14
10:37
OpenAccess [PUBDB-2017-13463] Contribution to a conference proceedings
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X-Band TDS Project
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 4 pp. (2017) [10.3204/PUBDB-2017-13463]  GO
Based on the success of the X-band Transverse Deflecting Structure (TDS) diagnostic at LCLS [1], a collaboration between DESY, PSI and CERN has formed with the aim of developing and building an advanced modular X-band TDS system. The designed TDS has the new feature of providing variable polarization of the deflecting field [2]. [...]
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2017-12-11
14:25
OpenAccess [PUBDB-2017-13262] Journal Article
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THz pulse doubler at FLASH: double pulses for pump–probe experiments at X-ray FELs
ddc:540
FLASH, the X-ray free-electron laser in Hamburg, Germany, employs anarrowband high-field accelerator THz source for unique THz pump X-rayprobe experiments. However, the large difference in optical paths of the THzand X-ray beamlines prevents utilization of the machine’s full potential (e.g.extreme pulse energies in the soft X-ray range). [...]
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2017-11-29
18:21
OpenAccess [PUBDB-2017-12558] Poster
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Double Pulse FEL Operation 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 free-electron laser facility FLASH at DESY (Hamburg, Germany) is a user facility since 2005 providing high brilliance XUV and soft X-ray pulses. The facility runs 10 Hz bursts of hundreds of electron bunches, where the bunch distance in the burst is 1 us or more. [...]
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2017-11-21
11:47
OpenAccess [PUBDB-2017-12185] Contribution to a conference proceedings/Contribution to a book
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Commissioning and Operation Experience of the 3.9 GHz System in the EXFEL Linac
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 999-1002 (2017) [10.3204/PUBDB-2017-12185]  GO
The European X-ray Free Electron Laser (EXFEL) injector linac hosts a 3.9~GHz module (AH1) for beam longitudinal phase space manipulation after the first acceleration stage, in order for the linac to deliver the high current beams with sufficiently low emittance for the production of 1 Angstrom FEL light to the experimental users. The module was technically commissioned in December 2015 and operated well above its nominal performances during the Injector Run from January to July 2016. [...]
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2017-11-14
12:29
OpenAccess [PUBDB-2017-11958] Conference Presentation (Invited)
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Experience with the Standard Diagnostics at the European XFEL
DEELS “Diagnostics Experts of European Light Sources”, DEELS 2017, Meeting locationSaclay, France, 12 Jun 2017 - 13 Jun 20172017-06-122017-06-13  GO
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2017-08-24
16:21
OpenAccess [PUBDB-2017-09777] Contribution to a conference proceedings/Contribution to a book
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X-Band TDS Project
International Particle Accelerator Conference (8th)
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19
Geneva : JACoW, 184-187 (2017) [10.18429/JACoW-IPAC2017-MOPAB044]  GO
Based on the success of the X-Band Transverse Deflecting Structure (TDS) diagnostic at LCLS*, a collaboration between DESY, PSI and CERN has formed with the aim of developing and building an advanced modular X-Band TDS system. The designed TDS has the new feature of providing variable polarization of the deflecting field**. [...]
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2017-08-24
14:42
OpenAccess [PUBDB-2017-09763] Contribution to a conference proceedings/Contribution to a book
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Status Update of the SINBAD-ARES Linac Under Construction at DESY
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 Geneva : JACoW, 3 pp. (2017) [10.18429/JACoW-IPAC2017-TUPAB040]  GO
ARES (Accelerator Research Experiment at Sinbad) is a linear accelerator for the production of low charge (from few pC to sub-pC) electron bunches with 100 MeV energy, fs and sub-fs duration and excellent arrival time stability. This experiment is currently under construction at DESY Hamburg and it is foreseen to start operation by the beginning of 2018 with the commissioning of the RF-gun. [...]
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2017-01-11
16:24
[PUBDB-2017-00524] Journal Article
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Plasma Wakefield Acceleration at CLARA facility in Daresbury Laboratory
ddc:530
A plasma accelerator research station (PARS) has been proposed to study the key issues in electron driven plasma wakefield acceleration at CLARA facility in Daresbury Laboratory. In this paper, the quasi-nonlinear regime of beam driven plasma wakefield acceleration is analysed. [...]
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