Keyword: radiation
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MOCOXBS03 Status of Novosibirsk ERL FEL, electron, operation, gun 5
 
  • N.A. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
 
  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 icon 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
 
  • T. Stengler, K. Aulenbacher, F. Hug, D. Simon, C.P. Stoll, S.D.W. Thomas
    KPH, Mainz, Germany
  • K. Aulenbacher
    HIM, Mainz, Germany
  • K. Aulenbacher
    GSI, Darmstadt, Germany
 
  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.
 
slides icon 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
 
  • V. Volkov, V.S. Arbuzov, E. Kenzhebulatov, E.I. Kolobanov, A.A. Kondakov, E.V. Kozyrev, S.A. Krutikhin, I.V. Kuptsov, G.Y. Kurkin, S.V. Motygin, A.A. Murasev, V.K. Ovchar, V.M. Petrov, A.M. Pilan, V.V. Repkov, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, O.A. Shevchenko, S.V. Tararyshkin, A.G. Tribendis, N.A. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  • E.V. Kozyrev, S.S. Serednyakov, N.A. Vinokurov
    NSU, Novosibirsk, Russia
  • A.G. Tribendis
    NSTU, Novosibirsk, Russia
  • N.A. Vinokurov
    KAERI, Daejon, Republic of Korea
  • N.A. Vinokurov
    UST, Daejeon City, Republic of Korea
  • N.A. Vinokurov
    University of Science and Technology of Korea (UST), Daejeon, Republic of Korea
 
  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 icon 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
 
  • S.D. Rädel, M. Alcorta, F. Ames, E. Chapman, K. Fong, B. Humphries, O.K. Kester, D. Kishi, S.R. Koscielniak, R.E. Laxdal, Y. Ma, T. Planche, M. Rowe, V.A. Verzilov
    TRIUMF, Vancouver, Canada
 
  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
 
  • I. Drebot, A. Bacci, S. Cialdi, L. Faillace, D. Giannotti, M. Rossetti Conti, A.R. Rossi, L. Serafini, M. Statera, V. Torri
    INFN-Milano, Milano, Italy
  • A. Bosotti, F. Broggi, D. Giove, P. Michelato, L. Monaco, R. Paparella, D. Sertore
    INFN/LASA, Segrate (MI), Italy
  • P. Cardarelli, M. Gambaccini, G. Paternò, A. Taibi
    INFN-Ferrara, Ferrara, Italy
  • A. Esposito, A. Gallo, C. Vaccarezza
    INFN/LNF, Frascati, Italy
  • G. Galzerano
    POLIMI, Milano, Italy
  • M. Gambaccini
    UNIFE, Ferrara, Italy
  • G. Mettivier, P. Russo
    UniNa, Napoli, Italy
  • V. Petrillo, F. Prelz
    Universita’ degli Studi di Milano & INFN, Milano, Italy
  • E. Puppin
    Politecnico/Milano, Milano, Italy
  • A. Sarno
    INFN-Napoli, Napoli, Italy
 
  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
 
  • Ya.V. Shashkov, N.Yu. Samarokov
    MEPhI, Moscow, Russia
  • I.V. Konoplev
    JAI, Oxford, United Kingdom
 
  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
 
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
 
  • Ya.V. Getmanov, A.S. Matveev, O.A. Shevchenko, N.A. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  • Ya.V. Getmanov, A.S. Matveev, N.A. Vinokurov
    NSU, Novosibirsk, Russia
 
  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
 
  • N. Banerjee, A.C. Bartnik, K.E. Deitrick, J. Dobbins, C.M. Gulliford, G.H. Hoffstaetter
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  • J.S. Berg, S.J. Brooks, R.J. Michnoff
    BNL, Upton, New York, USA
 
  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.
 
slides icon 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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