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2018-08-17
16:36
[PUBDB-2018-03042] Book/Report
; ; ; et al
CHECHIA cavity driving with FPGA controller
[TESLA Report 2005-12 ]
TESLA Reports 18 pp. ()
The initial control of the superconductive cavity has recently been performed by applying the FPGA (Field Programmable Gate Array) technology system in DESY Hamburg. This first experiment turned attention to the general recognition of the cavity features and projected control methods. [...]
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2018-08-17
14:40
[PUBDB-2018-03028] Book/Report
; ; ; et al
Numerical Studies on the Electro-Optic Sampling of RelativisticElectron Bunches
[TESLA Report 2005-01]
TESLA Reports 33 pp. ()
At the 1 GeV electron linac of the DESY vacuum-ultraviolet free-electron laseran electro-optic (EO) sampling experiment has been installed permitting to measurethe time structure of the bunches with high resolution. The transient electric fieldof the relativistic bunch corresponds to a sub-picosecond THz pulse which induces abirefringence in an electro-optic crystal. [...]
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2018-08-17
14:34
[PUBDB-2018-03027] Book/Report
; ; ; et al
Timing requirements and proposal of atiming concept for the European XFEL
[TESLA-FEL 2006-13; TESLA 2006-12]
TESLA Reports 13 pp. ()
In the initial development stage the future European XFEL offersfive beamlines to users performing experiments with FEL light in the x-ray range. One re-quirement to the accelerator is to supply electron beams to the different user beamlines almost at the same time. [...]
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2018-08-17
14:07
[PUBDB-2018-03023] Book/Report
; ; ; et al
Control system modeling for superconducting accelerator
[TESLA Report 2006-08]
TESLA Reports 8 pp. ()
A digital control of superconducting cavities for a linear accelerator is presented. The LLRF - Low Level Radio Frequency system for FLASH project in DESY is introduced [...]
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2018-08-17
14:03
[PUBDB-2018-03022] Book/Report
; ; ; et al
FPGA based Multichannel Optical Concentrator SIMCON 4.0 for TESLA cavities LLRF Control System
[TESLA Report 2006-07]
TESLA Reports 8 pp. ()
The paper presents an idea, design and realization of a gigabit, optoelectronic synchronous massive data concentrator for the LLRF control system for FLASH and XFEL superconducting accelerators and lasers. The design bases on a central, large, programmable FPGA VirtexIIPro circuit by Xilinx and on eight commercial optoelectronic transceivers [...]
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2018-08-17
11:22
[PUBDB-2018-02997] Book/Report
; ; ; et al
Fertigungsablauf des einzelligen Standard DESY 1.3 GHz Resonators aus Niob
[TTC Report 2010‐01]
TESLA Reports 11 pp. ()
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2018-08-17
11:21
[PUBDB-2018-02996] Book/Report
; ; ; et al
1.3 GHz NiobiumSingle‐Cell Fabrication Sequence
[TTC Report 2010‐01]
TESLA Reports 11 pp. ()
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2018-07-17
09:43
OpenAccess [PUBDB-2018-02624] Report/Internal Report

A Simple Automatic Radiation Alarm System for the XFEL Main LINACEin einfaches Strahlungsalarm-System für den XFEL Main Linac
[DESY-Technical-Note-18-01]
7 pp. () [10.3204/PUBDB-2018-02624]  GO
XFEL läuft schon seit einiger Zeit im Routinebetrieb. Jedoch sind noch Bemühungen im Gange, den Betrieb weiter zu optimieren, und insbesondere auch höhere Energien zu erreichen.Hierzu werden die Cavitiy-Spannungen sukzessiv erhöht, bis das sogenannte Quench-Limit erreicht wird. [...]
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2018-07-09
10:57
OpenAccess [PUBDB-2018-02550] Report/Internal Report

Investigation on Movements of the Photon Beam in the PETRA Beamline P03 -Untersuchungen der Strahllage des Photonen-Strahls in der PETRA Beamline P03
[DESY-M-18-02]
12 pp. () [10.3204/PUBDB-2018-02550]  GO
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2018-07-09
10:47
OpenAccess [PUBDB-2018-02549] Report/Internal Report
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TLD Evaluation for the XFEL Main Linac in 2017 -TLD Auswertung 2017 für den XFEL Main Linac
[DESY-M-18-01]
53 pp. () [10.3204/PUBDB-2018-02549]  GO
Thermoluminoscense dosimeters (TLD) are installed at several positions along the XFEL main linac tunnel inside the concrete shielding of the electronics racks. They have been readout regularly in every longer shutdown. [...]
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