| Paper | Title | Other Keywords | Page |
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| TUP025 | Current Status of Free Electron Laser @ TARLA | FEL, electron, cavity, undulator | 102 |
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Funding: Work supported by Strategy and Budget Department of Turkey with Grand No: 2006K120470 Turkish Accelerator and Radiation Laboratory (TARLA), which is supported by the Presidency Strategy and Budget Directorate of Turkey, aims to be the state of art research instrument for the radiation users from Turkey. Two superconducting accelerating modules of TARLA will drive two different planar undulator magnets with periods of 110 mm (U110) and 35 mm (U35) in order to generate high brightness Continuous Wave (CW) Free Electron Laser (FEL) tunable in between 5-350 µm. In addition, the linac will drive a Bremstrahlung radiation station to generate polarized gamma radiation. Main components of TARLA, such as injector, superconducting accelerating modules and cryoplant are under commissioning currently. In this study, we present current status of the facility in addition to expected FEL performance of the facility. |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-TUP025 | ||
| About • | paper received ※ 20 August 2019 paper accepted ※ 29 August 2019 issue date ※ 05 November 2019 | ||
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| WEP049 | RF Power Waveguide Distribution for the RF Gun of the European XFEL at DESY | GUI, gun, FEL, klystron | 434 |
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| The first section of the European XFEL provides the 43 m long injector. The injector consists of a 1.3 GHz RF gun, a 1.3 GHz cryomodule, a 3.9 GHz cryomodule and an extensive diagnostic section. The RF gun operates with a maximum RF peak power up to 6.5 MW, 10 Hz repetition rate and up to 650 µs pulse length. The starting point in the 1.5 cell normal conducting L-Band cavity of the RF gun is a Cs2Te photocathode, which produces electron bunches, which are injected into the superconducting accelerating section of the European XFEL. The RF power is generated by a 10 MW multi beam klystron and distributed to the RF gun through a RF power waveguide distribution system. In order to enhance the reliability of the distribution system, the peak power is minimized in every section of the system by splitting the power in different branches. The RF power reaches its maximum just in front of the RF gun after combination of all branches. An additional air pressure system decreases the break down level in the waveguides of the distribution. We present the layout of the waveguide distribution system for the XFEL RF gun at DESY and report on first operation experience. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP049 | ||
| About • | paper received ※ 19 August 2019 paper accepted ※ 27 August 2019 issue date ※ 05 November 2019 | ||
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| WEP054 | Beam Dynamics Optimization of a Normal-Conducting Gun Based CW Injector for the European XFEL | cavity, cathode, gun, FEL | 452 |
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| The European XFEL is operating up to 17.5 GeV electron energy with maximum 0.65% duty cycle. There is a prospect for continuous wave and long pulse mode (CW/LP) operation of the European XFEL, which enables more flexible bunch pattern time structure for experiments, higher average brightness and better stability. Due to engineering limitations, the maximum electron beam energy in the CW/LP mode is about 8.6/12.8 GeV, which puts more pressure on the injector beam quality for lasing at the shortest wavelength. This paper optimizes the beam dynamics of an injector based on a normal-conducting VHF gun. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP054 | ||
| About • | paper received ※ 20 August 2019 paper accepted ※ 26 August 2019 issue date ※ 05 November 2019 | ||
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||