Contributions to a conference proceedings

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2019-08-07
17:41
OpenAccess [PUBDB-2019-02937] Journal Article/Contribution to a conference proceedings

Studies of Space Charge dominated Electron Photoemission at PITZ
IV International Conference on Laser&Plasma researches and technologies, LaPlas-2018, MoscowMoscow, Russia, 30 Jan 2018 - 1 Feb 20182018-01-302018-02-01 Journal of physics / Conference Series 1238(1), 012064 () [10.1088/1742-6596/1238/1/012064]  GO
Photoemission in modern high brightness electron sources is under studies at the PITZ photo injector. Space charge dominated photoemission in the presence of high RF field at the semiconductor photocathode is studied [...]
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2019-08-07
17:22
OpenAccess [PUBDB-2019-02936] Contribution to a conference proceedings/Contribution to a book
et al
Self-Modulation Instability of Electron Beams in Plasma Channels of Variable Length
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 3616-3618 () [10.18429/JACOW-IPAC2019-THPGW017]  GO
The self-modulation instability (SMI) of long (in respect to the plasma wavelength) charged particle beams passing through plasma enables the use of currently existing high energy charged particle beams as drivers for plasma wakefield accelerators. At the Photo Injector Test facility at DESY in Zeuthen (PITZ) the SMI of electron beams is studied *, **. [...]
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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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2019-08-07
15:31
OpenAccess [PUBDB-2019-02931] Contribution to a conference proceedings/Contribution to a book

The Cooling Effect of Beam Self-Fields on the Photocathode Surface in High Gradient RF Injectors
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 3112-3115 () [10.18429/JACOW-IPAC2019-WEPTS013]  GO
The intrinsic slice emittance of the emitted electrons on the photocathode surface at each moment during the transient photoemission process depends on the transverse size of the slice and the mean kinetic energy of the electrons within the slice. The latter relies on the surface barrier potentials of the cathode material at a fixed wavelength of the incident light, and is thus significantly influenced by the presence of strong rf and beam self-fields at / close to the cathode surface. [...]
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2019-08-07
15:04
OpenAccess [PUBDB-2019-02930] Contribution to a conference proceedings/Contribution to a book
et al
RF Design Studies of a 1.3 GHz Normal Conducting CW Buncher for European X-FEL
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 3109-3111 () [10.18429/JACOW-IPAC2019-WEPTS012]  GO
A CW upgrade of European XFEL is under consideration, and CW electron injector is under R at DESY. One of the injector solutions is the LCLS-II like injector based on a normal conducting CW gun and buncher. [...]
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2019-08-07
14:55
OpenAccess [PUBDB-2019-02929] Contribution to a conference proceedings/Contribution to a book
et al
High Transformer Ratio Plasma Wakefield Acceleration Driven by Photocathode Laser Shaped Electron Bunches
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 2286-2290 () [10.18429/JACOW-IPAC2019-WEZPLS2]  GO
Beam driven wakefield acceleration (PWFA) schemes in plasmas are among the most promising candidates for novel, compact accelerators. Several aspects of PWFA are under investigation at the Photoinjector Test facility at DESY in Zeuthen (PITZ). [...]
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2019-08-01
11:09
OpenAccess [PUBDB-2019-02880] Journal Article/Report/Contribution to a conference proceedings
et al
Multi-level integration for meson propagators
[DESY-18-186; arXiv:1812.01875]
The 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018, Michigan State UniversityMichigan State University, East Lansing, 22 Jul 2018 - 28 Jul 20182018-07-222018-07-28
Contributions / Info
Proceedings of Science / International School for Advanced Studies (LATTICE2018), 028 () [10.22323/1.334.0028]  GO
he computation of many correlation functions in lattice QCD is severely hindered by a signal-to-noise problem. Recent developments in the factorization of both the fermion propagator and determinant pave the way for the implementation of multi-level Monte Carlo integration techniques for lattice QCD. [...]
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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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2019-07-26
15:25
OpenAccess [PUBDB-2019-02851] Contribution to a conference proceedings/Contribution to a book
et al
Single Shot Cathode Transverse Momentum Imaging in Photoinjectors
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 Geneva, Switzerland : JACoW Publishing 1964-1967 () [10.18429/JACOW-IPAC2019-TUPTS014]  GO
In state of the art photoinjector electron sources, cathode performance determines the lower limit of achievable beam emittance. Measuring the thermal emittance at the photocathodes in electron guns is of vital importance for improving the injectors. [...]
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2019-07-26
14:57
OpenAccess [PUBDB-2019-02840] Contribution to a conference proceedings/Contribution to a book
et al
Design Studies of a Proof-of-Principle Experiment on THz SASE FEL 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 1713-1716 () [10.18429/JACOW-IPAC2019-TUPRB018]  GO
A free-electron laser based THz source is undergoing design studies at the Photo Injector Test facility at DESY in Zeuthen (PITZ). It is considered as a prototype for pump-probe experiments at the European XFEL, benefiting from the fact that the electron beam from the PITZ facility has an identical pulse train structure as the XFEL pulses. [...]
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