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2018-12-14
11:54
OpenAccess [PUBDB-2018-05472] Contribution to a conference proceedings
et al
Phase Drift Compensating RF Link for Femtosecond Synchronization of E-XFEL
21st IEEE Real Time Conference, RT2018, Colonial WilliamsburgColonial Williamsburg, USA, 9 Jun 2018 - 15 Jun 20182018-06-092018-06-15 6 pp. () [10.3204/PUBDB-2018-05472]  GO
Modern high-energy particle accelerators and Free-Electron Lasers incorporate large quantities of sensitive RF and microwave frequency devices distributed over kilometer distances. Such devices require extreme stable phase and time synchronization by means of high frequency signal distributed along the accelerator facility. [...]
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2018-12-14
10:45
[PUBDB-2018-05465] Journal Article
et al
Real-time Iterative Learning Control - Two Applications with Time Scales between Years and Nanoseconds
Iterative learning control (ILC) is a family of digital control concepts, which can be used for a large variety of different applications. Each application has its own properties like sampling time and storage needs. [...]
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ddc:510
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2018-12-11
12:23
OpenAccess [PUBDB-2018-05399] Contribution to a conference proceedings/Contribution to a book

Progress on Multibunch FEL Performance at FLASH
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 Geneva, Switzerland : JACoW Publishing 1452-1455 () [10.18429/JACOW-IPAC2018-TUPMF080]  GO
At the SASE-FEL user facility FLASH, superconducting TESLA-type cavities are used for acceleration. The high achievable duty cycle allows for operating with long bunch-trains, hence considerably increasing the efficiency of the machine. [...]
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2018-12-11
12:12
OpenAccess [PUBDB-2018-05398] Contribution to a conference proceedings
et al
Anomaly Detection for Cavity Signals - Results from the European XFEL
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 Geneva, Switzerland : JACoW Publishing 2502-2504 () [10.18429/JACOW-IPAC2018-WEPMF058]  GO
The data throughput of the European XFEL DAQ is about 1.5 Gb/s. Data depicting the cavity signal behavior is currently only saved manually. [...]
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2018-12-07
11:46
OpenAccess [PUBDB-2018-05296] Contribution to a conference proceedings
et al
Real-Time Redundancy for the 1.3 GHz Master Oscillator of the European-XFEL
21st IEEE Real Time Conference, RT2018, Colonial WilliamsburgColonial Williamsburg, USA, 9 Jun 2018 - 15 Jun 20182018-06-092018-06-15 18 pp. () [10.3204/PUBDB-2018-05296]  GO
Many modern large-scale facilities, like European X-ray Free Electron Laser (E-XFEL), require precise synchronisation, often down to femtosecond level. Even a very short interruption or an excessive glitch in the reference signal might break the precise time relations between subsystems. [...]
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2018-12-04
13:09
OpenAccess [PUBDB-2018-05183] Contribution to a conference proceedings/Contribution to a book
et al
Status of the Polarix-TDS Project
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 Geneva, Switzerland : JACoW Publishing 3808-3811 () [10.18429/JACOW-IPAC2018-THPAL068]  GO
A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. This innovative CERN design requires very high manufacturing precision to guarantee highest azimuthal symmetry of the structure to avoid the deterioration of the polarization of the streaking field. [...]
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2018-12-04
12:57
OpenAccess [PUBDB-2018-05182] Contribution to a conference proceedings/Contribution to a book
et al
Design and Status of the MicroTCA.4 Based LLRF System for TARLA, Geneva, Switzerland
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 Geneva, Switzerland : JACoW Publishing 2490-2492 () [10.18429/JACOW-IPAC2018-WEPMF054]  GO
The Turkish Accelerator and Radiation Laboratory in Ankara (TARLA) is constructing a 40 MeV Free Electron Laser with continuous wave (CW) RF operation. In order to control and monitor the four superconducting (SC) TESLA type cavities as well as the two normal conducting (NC) buncher cavities, a MicroTCA.4 based LLRF system is foreseen. [...]
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2018-12-04
12:52
OpenAccess [PUBDB-2018-05181] Contribution to a conference proceedings/Contribution to a book
et al
A Tunable Narrowband Source in the Sub-THz and THz Range at DELTA
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 Geneva, Switzerland : JACoW Publishing 4534-4537 () [10.18429/JACOW-IPAC2018-THPMK098]  GO
At DELTA, a 1.5-GeV electron storage ring operated as a synchrotron light source by the TU Dortmund University, an interaction of ultrashort laser pulses with electron bunches is used to generate broadband as well as tunable narrowband radiation in the frequency range between 75 GHz and 5.6 THz. The performance of the source was studied using two different Fourier-transform spectrometers. [...]
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2018-12-04
12:41
OpenAccess [PUBDB-2018-05180] Contribution to a conference proceedings/Contribution to a book
et al
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 Geneva, Switzerland : JACoW Publishing 1927-1928 () [10.18429/JACOW-IPAC2018-WEPAF049]  GO
The European XFEL(X-Ray Free Electron Laser) at DESY(Deutsches Elektronen-Synchrotron) in Hamburg/Schenefeld started commissioning in early 2017. Before the pulsed electron beam is accelerated to its final energy of 14 GeV, the energy of the bunch can be compressed in three bunch compression chicanes at 130 MeV, 700 MeV and 2400 MeV. [...]
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2018-11-29
12:27
[PUBDB-2018-04979] Book/Report/Dissertation / PhD Thesis

Resistive wall wake fields
[TESLA Report 1997-22]
TESLA Reports 124 pp. () = Dissertation, University of Hamburg, 1997
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