Paper | Title | Other Keywords | Page |
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MOCOXBS03 | Status of Novosibirsk ERL | FEL, electron, operation, gun | 5 |
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The Novosibirsk ERL is dedicated electron beam source for three free electron lasers operating in the wavelength range 8 - 240 micron at average power up to 0.5 kW and peak power about 1 MW. Radiation users works at 8 user stations performing biological, chemical, physical and medical research. The Novosibirsk ERL is the first and the only four-turn ERL in the world. Its peculiar features include the normal-conductive 180 MHz accelerating system, the DC electron gun with the grid thermionic cathode, three operation modes of the magnetic system, and a rather compact (6×40 m2) design. The facility has been operating for users of terahertz radiation since 2004. The status of the installation and plans are described. | |||
Slides MOCOXBS03 [6.521 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-MOCOXBS03 | ||
About • | paper received ※ 13 September 2019 paper accepted ※ 06 November 2019 issue date ※ 24 June 2020 | ||
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TUCOZBS06 | Cryomodules for the Mainz Energy-Recovering Superconducting Accelerator (MESA) | cavity, cryomodule, HOM, operation | 56 |
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Funding: This work is supported by the German Research Foundation (DFG) under the Cluster of Excellence "PRISMA+" EXC 2118/2019} The Mainz Energy-recovering Superconducting Accelerator (MESA) will be an electron accelerator allowing c.w. operation in energy-recovery (ER) mode. The energy gain of 50 MeV will be provided by two modified ELBE/Rossendorf-type cryomodules. The MESA-cryomodules are delivered and tested. The test results will be discussed. |
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Slides TUCOZBS06 [10.644 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-TUCOZBS06 | ||
About • | paper received ※ 16 September 2019 paper accepted ※ 11 November 2019 issue date ※ 24 June 2020 | ||
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WECOXBS03 | Bench Test Results of CW 100 mA Electron RF Gun for Novosibirsk ERL based FEL | cathode, cavity, gun, electron | 65 |
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Continuous wave (CW) 100 mA electron rf gun for injecting the high-quality 300-400 keV electron beam in Novosibirsk Energy Recovery Linac (ERL) and driving Free Electron Laser (FEL) was developed, built, and commissioned at BINP SB RAS. The RF gun consists of normal conducting 90 MHz rf cavity with a gridded thermionic cathode unit. Bench tests of rf gun is confirmed good results in strict accordance with our numerical calculations and showed reliable work, unpretentious for vacuum conditions and stable in long-term operation. The design features of different components of the rf gun are presented. Preparation and commissioning experience is discussed. The latest beam results are reported. | |||
Slides WECOXBS03 [3.201 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WECOXBS03 | ||
About • | paper received ※ 14 September 2019 paper accepted ※ 11 November 2019 issue date ※ 24 June 2020 | ||
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WEPNEC01 | Status and Future Perspective of the TRIUMF E-Linac | linac, electron, MMI, gun | 70 |
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The currently installed configuration of TRIUMF’s superconducting electron linac (e-linac) can produce an electron beam up to 30MeV and 10mA. Low beam power commissioning of the segment spanning the electron gun to high energy dump took place in summer 2018 with an attained beam energy of 25MeV. As the driver of the ARIEL project, the e-linac will deliver electrons to a photo-converter target station for the production of neutron-rich rare isotope beams (RIB) via photo fission. The e-linac will have sufficient beam power to support the demands of other user community rare isotope beams. This driver accelerator could server as a production machine for high field THz radiation and as irradiation center. A recirculation of the beam would be beneficial for RIB production at higher beam energy and would allow for high bunch compression to generate THz radiation. Such a system would also allow for the investigation of a high beam intensity energy recovery linac. To this end, TRIUMF is investigating the design of such a recirculation and the beam dynamics as a first step. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC01 | ||
About • | paper received ※ 01 October 2019 paper accepted ※ 01 November 2019 issue date ※ 24 June 2020 | ||
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WEPNEC11 | X-Ray ICS Source Based on Modified Push-Pull ERLs | cavity, electron, photon, linac | 84 |
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We present the conceptual designs of BriXS and BriXSino (a minimal test-bench demonstrator of proof of principle) for a compact X-ray Source based on innovative push-pull ERLs. BriXS, the first stage of the Marix project, is a Compton X-ray source based on superconducting cavity technology with energy recirculation and on a laser system in Fabry-Pérot cavity at a repetition rate of 100 MHz, producing 20-180 keV radiation for medical applications. The energy recovery scheme based on a modified folded push-pull CW-SC twin Linac ensemble allows to sustain MW-class beam power with almost just one hundred kW active power dissipation/consumption. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC11 | ||
About • | paper received ※ 20 September 2019 paper accepted ※ 06 November 2019 issue date ※ 24 June 2020 | ||
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WEPNEC14 | Electromagnetic Design of a Superconducting dual axis Spoke Cavity* | cavity, linac, SRF, acceleration | 94 |
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Funding: The reported study was funded by RFBR according to the research project 18-302-00990 Dual axis superconducting spoke cavity for Energy Recovery Linac application is proposed. Conceptual design of the cavity is shown and preliminary optimiza-tions of the proposed structure have been carried out to minimize the ratio of the peak magnetic and electric fields to the accelerating voltage. The new design and future work are discussed |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC14 | ||
About • | paper received ※ 01 October 2019 paper accepted ※ 06 November 2019 issue date ※ 24 June 2020 | ||
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WEPNEC16 | Electron Outcoupling System of Novosibirsk Free Electron Laser Facility - Beam Dynamics Calculation and the First Experiments | electron, undulator, FEL, coupling | 98 |
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The radiation power of the FEL with optical cavity can be limited by the overheating of reflecting mirrors. In the electron outcoupling scheme electron beam radiates the main power at a slight angle to the optical axis. For this, it is necessary to divide undulator by a dipole magnet at least in two parts - the first for the electron beam bunching in the field of the main optical mode, and the second for the power radiation by deflected beam. Electron outcoupling system is installed on the third FEL based on the multiturn energy recovery linac of the Novosibirsk Free Electron Laser facility (NovoFEL). It consists of three undulators, dipole correctors and two quadrupole lenses assembled between them. There are two different configurations of the system since the electrons can be deflected in either the second or the third undulator. The electron beam dynamics calculations and the results of the first experiments are presented. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-WEPNEC16 | ||
About • | paper received ※ 01 October 2019 paper accepted ※ 06 November 2019 issue date ※ 24 June 2020 | ||
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FRCOWBS04 | Essential Instrumentation for the Characterization of ERL Beams | diagnostics, cavity, linac, operation | 150 |
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Funding: This work was performed through the support of New York State Energy Research and Development Agency (NYSERDA). The typical requirement of Energy Recovery Linacs to produce beams with high repetition rate and high bunch charge presents unique demands on beam diagnostics. ERLs being quite sensitive to time of flight effects necessitate the use of beam arrival time monitors along with typical position detection. Being subjected to a plethora of dynamic effects, both longitudinal and transverse phase space monitoring of the beam becomes quite important. Additionally, beam halo plays an important role determining the overall transmission. Consequently, we also need to characterize halo both directly using sophisticated beam viewers and indirectly using radiation monitors. In this talk, I will describe the instrumentation essential to ERL operation using the Cornell-BNL ERL Test Accelerator (CBETA) as a pertinent example. |
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Slides FRCOWBS04 [7.129 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-ERL2019-FRCOWBS04 | ||
About • | paper received ※ 19 September 2019 paper accepted ※ 01 November 2019 issue date ※ 24 June 2020 | ||
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