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2018-06-12
09:04
OpenAccess [PUBDB-2018-02247] Book/Report/Dissertation / PhD Thesis
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Identification and Control of the Laser-based SynchronizationSystem for the European X-ray Free Electron Laser
[DESY-THESIS-2018-018]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS , 164 pp. () [10.3204/PUBDB-2018-02247] = Dissertation, Technische Universität Hamburg, 2017  GO
The European X-ray Free-Electron Laser is currently under construction at theDeutsches ElektronenSynchrotron in Hamburg, Germany. This linear accelerator, with a length of 3.4 km,will generate extremely intense and short X-ray laser light pulses with a duration in the femtosecondrange and wavelengths down to 0.05 nm. [...]
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2018-06-04
14:39
[PUBDB-2018-02177] Poster
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High Ql and High Gradient CW Operation of Tesla SCRF 9-Cell Cavity
IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 5 May 20182018-04-292018-05-05
In the paper we would like to present Tesla SCRF 9-Cell cavity operated at CW regime withextremely high QL at gradients above 23 MV/m. The design hardware and firmware components aswell as developed high level software procedures allows automatic procedure of cavity trip from lowto high gradient operation. [...]

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2018-05-23
13:47
OpenAccess [PUBDB-2018-02063] Contribution to a conference proceedings
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Energy Beam Position Monitor Button Array Electronics for the European XFEL
9th International Particle Accelerator Conference, IPAC’18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 , 3 pp. () [10.3204/PUBDB-2018-02063]  GO
The European XFEL (X-Ray Free Electron Laser)at DESY (Deutsches Elektronen-Synchrotron) in Hamburg/Schenefeld started commissioning in early 2017. Beforethe pulsed electron beam is accelerated to its final energyof 14 GeV, the energy of the bunch can be compressed inthree bunch compression chicanes at 130MeV, 700MeVand 2400MeV. [...]
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2018-05-23
13:39
OpenAccess [PUBDB-2018-02062] Contribution to a conference proceedings
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High Resolution and Low Charge Button and Strip-Line Beam Position Monitor Electronics Upgrade at FLASH
9th International Particle Accelerator Conference, IPAC’18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 , 4 pp. () [10.3204/PUBDB-2018-02062]  GO
Historically the FLASH (Free Electron Laser in Hamburg) facility at DESY (Deutsches Elektronen-Synchrotron)in Germany has foreseen operation in a charge range from1 nC-3 nC for which a VME based BPM (Beam Position Monitor) system has been in operation since 2005 with a later upgrade to lower charges. In the past few years the standard machine operation settled at a few hundreds ofpC with a tendency to smaller charges down to 100 pC and less. [...]
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2018-05-23
10:00
OpenAccess [PUBDB-2018-02045] Contribution to a conference proceedings
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RF Electronics for the Measurement of Beam Induced Higher Order Modes (HOM) Implemented in the MICROTCA.4 Form Factor
9th International Particle Accelerator Conference, IPAC’18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 , 3 pp. () [10.3204/PUBDB-2018-02045]  GO
Higher order modes (HOM) excited in RF accelerating cavities by a particle beam can be used for electron beam diagnostics. Phase of a monopole HOM provides infor-mation about the beam phase relative to the externally induced RF field in a cavity (BPhM) [1] . [...]
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2018-05-15
17:22
OpenAccess [PUBDB-2018-01981] Contribution to a conference proceedings
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Status of the ARES RF Gun at SINBAD: From its Characterization and Installation Towards Commissioning
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 , 3 pp. () [10.3204/PUBDB-2018-01981]  GO
The SINBAD facility (Short and INnovative Bunches and Accelerators at DESY) is foreseen to host multiple experiments relating to the production of ultra-short electron bunches and novel high gradient acceleration techniques. The SINBAD-ARES linac will be a conventional S-band linear RF accelerator allowing the production of low charge (0.5 pC - tens pC) ultra-short electron bunches (FWHM length ≤ fs - few fs) with 100 MeV energy. [...]
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2018-03-22
15:24
[PUBDB-2018-01531] Book/Proceedings/Report
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Elektronische Instrumentierung: Proceedings, 109. SEI-Tagung, Dresden-Rossendorf, Deutschland, 16.4.-18.4. April 2018
[DESY-PROC-2018-02]
109. Tagung der Studiengruppe elektronische Instrumentierung, SEI 2018, Dresden-RossendorfDresden-Rossendorf, Germany, 16 Apr 2018 - 18 Apr 20182018-04-162018-04-18 Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC , () [10.3204/DESY-PROC-2018-02]  GO

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2018-01-31
13:23
OpenAccess [PUBDB-2018-00933] Contribution to a conference proceedings/Contribution to a book
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Concept for the Minimization of the Electron Bunch Arrival-Time Jitter between Femtosecond Laser Pulses and Electron Bunches for Laser-Driven Plasma Wakefield Accelerators
6th International Beam Instrumentation Conference, IBIC 17, Grand RapidsGrand Rapids, USA, 20 Aug 2017 - 24 Aug 20172017-08-202017-08-24 JACoW , 4 pp. () [10.3204/PUBDB-2018-00933]  GO
Using laser driven plasma wakefield accelerators, the synchronization between electron bunch and the ultrashort laser is crucial to obtain an stable acceleration. In order to minimize the electron bunch arrival-time jitter, the development of a new shot to shot feedback system with a time resolution of less than 1 fs is planned. [...]
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2018-01-31
13:00
OpenAccess [PUBDB-2018-00930] Contribution to a conference proceedings/Contribution to a book
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MicroTCA.4-based LLRF For CW Operation at ELBE - Status and Outlook
6th International Beam Instrumentation Conference, IBIC 17, Grand RapidsGrand Rapids, USA, 20 Aug 2017 - 24 Aug 20172017-08-202017-08-24 JACoW , 3 pp. () [10.3204/PUBDB-2018-00930]  GO
The superconducting linear accelerator ELBE at Helmholtz -Zentrum Dresden-Rossendorf is operated in continuous wave (CW) operation [1] . The analogue LLRF (low level radio frequency) system, used since 2001, is going to be replaced by a digital solution based on MicroTCA.4. [...]
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2018-01-11
13:36
DBCoverage [PUBDB-2018-00489] Journal Article
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Validation of the superconducting 3.9 GHz cavity package for the European X-ray Free Electron Laser
A full test of the cavity package concept under realistic operating condition was a necessary step before the assembly of the European XFEL (EXFEL) 3.9 GHz superconducting system and its installation in the accelerator. One cavity, equipped with magnetic shielding, power coupler and frequency tuner has been tested in a specially designed single cavity cryostat in one of the test benches of the DESY Accelerator Module Test Facility (AMTF). [...]
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