ZEU-PITZ

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2019-08-07
17:48
Embargoed OpenAccess [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
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
OpenAccess [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
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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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2019-08-07
13:58
[PUBDB-2019-02927] Contribution to a conference proceedings
et al
Photocathode Activities at INFN LASA
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 JACoW Publishing, Geneva, Switzerland 2203-2206 () [10.18429/JACoW-IPAC2019-TUPTS117]  GO
We present the activity on alkali antimonide photocathodes at INFN LASA. The long term goal is to transfer to these photocathodes the know-how acquired in the successful development of cesium telluride photocathodes, nowadays used in many leading FEL facilities and accelerator complex. [...]
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2019-07-26
15:25
OpenAccess [PUBDB-2019-02851] Contribution to a conference proceedings/Contribution to a book
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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
15:18
[PUBDB-2019-02850] Contribution to a conference proceedings
et al
Emittance Reduction of RF Photoinjector Generated Electron Beams By Transverse Laser Beam Shaping
10th International Particle Accelerator Conference, IPAC’19, MelbourneMelbourne, Australia, 19 May 2019 - 24 May 20192019-05-192019-05-24 JACoW Publishing, Geneva, Switzerland 1958-1960 () [10.18429/JACoW-IPAC2019-TUPTS012]  GO
Laser pulse shaping is one of the key elements to generate low emittance electron beams with RF photoinjectors. Ultimately high performance can be achieved with ellipsoidal laser pulses, but 3-dimensional shaping is challenging. [...]
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