Author: Ivanenko, I.A.
Paper Title Page
MOPSA49 DC140 Cyclotron, Trajectory Analysis of Beam Acceleration and Extraction 205
 
  • I.A. Ivanenko, N.Yu. Kazarinov
    JINR, Dubna, Moscow Region, Russia
  • V.I. Lisov
    JINR/FLNR, Moscow region, Russia
 
  At the present time, the activities on creation of the new heavy-ion isochronous cyclotron DC140 are carried out at Joint Institute for Nuclear Research. DC140 facility is intended for SEE testing of microchip, for production of track membranes and for solving of applied physics problems. Cyclotron will produce accelerated beams of ions A/Z= 5 - 5.5 and 7. 5 - 8.25 with a fixed beam energy 4.8 MeV/n and 2.124 MeV/n respectively. The variation of operation modes is provided by changing of magnetic field in the range 1.4T - 1.55T with fixed generator frequency 8.632 MHz. In this report, the results of design and simulation of the beam acceleration and extraction are presented.  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA49  
About • Received ※ 12 September 2021 — Revised ※ 15 September 2021 — Accepted ※ 20 September 2021 — Issued ※ 02 October 2021
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MOPSA50 Axial Injection System of DC140 Cyclotron of FLNR JINR 209
 
  • N.Yu. Kazarinov, V. Bekhterev, G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin, S.V. Mitrofanov, N.F. Osipov, V.A. Semin
    JINR, Dubna, Moscow Region, Russia
  • V.I. Lisov
    JINR/FLNR, Moscow region, Russia
 
  Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research continues the works under creating of FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility will have three experimental beam lines for SEE testing of microchips, for production of track membranes and for solving of applied physics problems. The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The systems of DC140 cyclotron such as axial injection, main magnet, RF- and extraction systems and beam lines are the reconstruction of the DC72 cyclotron ones. The acceleration in DC140 cyclotron is carried out for two values of harmonic number h = 2,3 of heavy ions with mass-to-charge ratio A/Z within two intervals 5 - 5.5 and 7.5 - 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass, correspondingly. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The design of the axial injection system of the DC140 cyclotron is presented in this report.  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA50  
About • Received ※ 27 August 2021 — Revised ※ 07 September 2021 — Accepted ※ 10 September 2021 — Issued ※ 23 October 2021
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MOPSA51 The Extraction System of DC140 Cyclotron 213
 
  • V.I. Lisov, A.A. Protasov, A.S. Zabanov
    JINR/FLNR, Moscow region, Russia
  • K. Gikal, G.G. Gulbekyan, I.A. Ivanenko, G.N. Ivanov, I.V. Kalagin, N.Yu. Kazarinov, S.V. Mitrofanov, N.F. Osipov, V.A. Semin
    JINR, Dubna, Moscow Region, Russia
 
  The main activities of Flerov Laboratory of Nuclear Reactions, following its name - are related to fundamental science, but, in parallel, plenty of efforts are paid for practical applications. For the moment continues the works under creating irradiation facility based on the cyclotron DC140 which will be dedicated machine for applied researches in FLNR. The beam transport system will have three experimental beam lines for testing of electronic components (avionics and space electronics) for radiation hardness, for ion-implantation nanotechnology and for radiation materials science. The DC140 cyclotron is intended for acceleration of heavy ions with mass-to-charge ratio A/Z within interval from 5 to 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The following elements are used to extract the beam from the cyclotron: electrostatic deflector, focusing magnetic channel, Permanent Magnet Quadrupole lens and steering magnet. The design of the beam extraction system of DC140 cyclotron are presented in this report.  
poster icon Poster MOPSA51 [0.886 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA51  
About • Received ※ 30 August 2021 — Accepted ※ 20 September 2021 — Issued ※ 24 October 2021  
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FRA01 Peculiarities of Producing 48Ca, 48Ti, 52Cr Beams at the DC-280 Cyclotron 93
 
  • K. Gikal, S.L. Bogomolov, I.A. Ivanenko, N.Yu. Kazarinov, D.K. Pugachev, V.A. Semin
    JINR, Dubna, Moscow Region, Russia
  • V.I. Lisov, A.A. Protasov
    JINR/FLNR, Moscow region, Russia
 
  The first beam of 84Kr14+ ions was accelerated in the DC-280 on December 26, 2018 and extracted to the ion transport channel on January 17, 2019. In March 2019, beams of accelerated 84Kr+14 ions with intensity of 1.36 pmkA and 12C+2 ions with and intensity of 10 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5.8 MeV/nucleon. In 2020-2021 years, beams of 48Ca7+,10+ ions with intensity up to 10,6 pmkA were accelerated and 7,1 pmkA were extracted from the DC-280 to the beam transport channel with energy about 4,51 - 5,29 MeV/nucleon. In 2021 year, beams of accelerated 52,54Cr10+ ions with intensity up to 2,5 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5,05 MeV/nucleon and beams of 48Ti7+ with intensity up to 1pmkA and with energy about 4,94 MeV/nucleon The main task of the new accelerator is implementation of the long-term program of researches on the SHE Factory aimed on synthesis of new elements (Z>118) and detailed studying of nuclear- physical and chemical properties of earlier opened 112-118 ones.  
slides icon Slides FRA01 [9.228 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA01  
About • Received ※ 18 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
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FRA03 Simulation and Design of the Permanent Magnet Multipole for DC140 99
 
  • V.P. Kukhtin, A.A. Firsov, M. Kaparkova, E.A. Lamzin, M.S. Larionov, A. Makarov, A. Nezhentzev, I.Yu. Rodin, N. Shatil
    NIIEFA, St. Petersburg, Russia
  • N.S. Edamenko, D.A. Ovsyannikov
    St. Petersburg State University, St. Petersburg, Russia
  • G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin, N.Yu. Kazarinov, N.F. Osipov
    JINR, Dubna, Moscow Region, Russia
  • S.E. Sytchevsky
    Saint Petersburg State University, Saint Petersburg, Russia
 
  Permanent magnet (PM) multipoles in some cases are good candidates in accelerator applications for beam transportation and focusing. The PM quadrupole will be utilized in the DC140 cyclotron which is under construction in JINR. A passive magnetic channel and a PM quad will be used for the compensation of horizontal defocusing in the high and low field regions, respectively. The quad is designed as a set of identical PMs rigidly fixed in a non-magnetic housing and capable to generate a a 8.1 T/m gradient field in the 64x25 mm aperture and 29.926 cm effective length. The error of linear approximation should be 1% or less. A special study was accomplished to define the PM specification reasoning from the demand for desired field strength, simple geometry, minimized nomenclature, and commercial availability. The quad design was selected with the use a 2D analytical model and then optimized in iterative 3D FE simulations with realistic PM shape and magnetic characteristics in mind. The resultant concept is the quad formed with 6 coaxial sections each 5cm in width. Every section has 26 identical PM bricks with the dimensions 11mmx11mmx50mm and different orientations. The PM bricks have remanent induction of 1.185 T and magnetic susceptibility of 0.1. Temperature characteristics and expected lifetime were also analysed. From the results obtained, candidate PM materials were proposed and mechanical and magnetic precision were recommended.  
slides icon Slides FRA03 [1.465 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA03  
About • Received ※ 09 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 12 October 2021  
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