FLA

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2019-08-14
13:31
OpenAccess [PUBDB-2019-03011] Book/Report/Dissertation / PhD Thesis

Electron-beam diagnostics for a laser-driven plasma wakefield accelerator in the framework of FLASHForward
[DESY-THESIS-2019-015]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 139 pp. () [10.3204/PUBDB-2019-03011] = Dissertation, Universität Hamburg, 2018  GO
Plasma wakefields are a promising approach for the acceleration of electrons with ultrahigh (10 to 100 GV/m) electric fields. Nowadays, high-intensity laser pulses are routinely utilized to excite these large-amplitude plasma waves. [...]
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2019-08-07
17:48
[PUBDB-2019-02938] Journal Article
et al
Preliminary Study for the Laboratory Experiment of Cosmic-Rays driven Magnetic Field Amplification
To understand astrophysical magnetic-field amplification, we conducted a feasibility study for a laboratory experiment of a non-resonant streaming instability at the Photo Injector Test Facility at DESY, Zeuthen site (PITZ). This non-resonant streaming instability, also known as Bell’s instability, is generally regarded as a candidate for the amplification of interstellar magnetic field in the upstream region of supernova-remnant shocks, which is crucial for the efficiency of diffusive shock acceleration. [...]
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2019-08-07
15:45
[PUBDB-2019-02932] Contribution to a conference proceedings/Contribution to a book
et al
Overview and Prospects of Plasma Wakefield Acceleration Experiments at PITZ
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 3612-3615 () [10.18429/JACOW-IPAC2019-THPGW016]  GO
The Photo Injector Test Facility at DESY in Zeuthen (PITZ) carries out studies of beam-driven plasma wakefield acceleration (PWFA). The facility possesses a flexible photocathode laser beam shaping system and a variety of diagnostics including a high-resolution dipole spectrometer and an rf deflector which enables the observation of the longitudinal phase space of electron beams after their passage through a plasma. [...]
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2019-07-31
15:51
[PUBDB-2019-02878] Contribution to a conference proceedings/Contribution to a book
et al
Particulate Sampling and Analysis during Refurbishment of Prototype European XFEL Cryomodule
Proceedings of the SRF 19 International Conference
19th International Conference on RF Superconductivity, SRF 19, DresdenDresden, Germany, 30 Jun 2019 - 5 Jul 20192019-06-302019-07-05
Geneva : JACoW 106-109 ()
The cryomodule PXFEL3_1 is one of three prototype cryomodules for the European XFEL. In preparation of the series module assembly it was used for the qualification of infrastructure and personnel at CEA Saclay. [...]
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2019-06-19
14:53
OpenAccess [PUBDB-2019-02509] Journal Article

First Attempts in Automated Defect Recognition in Superconducting Radio-Frequency Cavities
The inner surface of superconducting cavities plays a crucial role to achieve highest accelerating fields. The industrial fabrication of cavities for the European X-Ray Free Electron Laser (EXFEL) and the International Linear Collider (ILC) HiGrade Research Project allowed for an investigation of this interplay with a large sample on different cavities undergoing a standardized procedure. [...]
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2019-04-02
08:07
OpenAccess [PUBDB-2019-01791] Book/Report/Dissertation / PhD Thesis

Numerical beam stability studies in external injection plasma-wakefield acceleration regimes
[DESY-THESIS-2019-005]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 177 pp. () [10.3204/PUBDB-2019-01791] = Dissertation, Universität Hamburg, 2019  GO
This work considers the phase-space evolution of an externally injectedelectron beam under various plasma-based acceleration scenariosusing numerical methods.Plasma wakefield acceleration, an exceptional technology with thepotential to drive the next generation of particle accelerators, uses aparticle driver to excite a wakefield carrying gradients in the rangeof10 GV m−1to100 GV m−1, orders of magnitude higher than theconventional cavities currently available. However, the plasma envi-ronment has stringent requirements with respect to acceptable beamparameters which need to be carefully analyzed to enable stable beamtransport and acceleration. [...]
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2019-02-22
08:25
OpenAccess [PUBDB-2019-01204] Talk (non-conference)

statistical analysis of 120$^{\circ}$C bake - lots of data - no smoking gun in sight
Tesla Technology Collaboration Meeting 2019, TTC2019, DESYVancouver, DESY, Canada, 5 Feb 2019 - 8 Feb 20192019-02-052019-02-08  GO
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2019-02-18
15:43
arXiv [PUBDB-2019-01144] Report/Journal Article
et al
The DESY II Test Beam Facility
[DESY-18-111; arXiv:1807.09328]
DESY Hamburg operates a test beam facility with three independent beam lines at the DESY II synchrotron. It is world-wide one of very few facilities providing test beams in the GeV range. [...]
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2019-02-18
09:52
arXiv [PUBDB-2019-01134] Report/Journal Article
et al
The DESY II Test Beam Facility
[arXiv:1807.09328; DESY-18-111]
DESY Hamburg operates a test beam facility with three independent beam lines at the DESY II synchrotron. It is world-wide one of very few facilities providing test beams in the GeV range. [...]
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2019-02-05
17:29
OpenAccess [PUBDB-2019-00950] Journal Article
et al
Tunable Plasma-Based Energy Dechirper
A tunable plasma-based energy dechirper has been developed at FLASHForward to remove thecorrelated energy spread of a 681 MeV electron bunch. Through the interaction of the bunch withwakefields excited in plasma the projected energy spread was reduced from a FWHM of 1.31% to 0.33%without reducing the stability of the incoming beam [...]
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