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https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP014
Title Deflecting System Upgrade Initial Simulations for 37 MeV Cyclotron at NPI Řež
Authors
  • T. Matlocha
    NPI, Řež near Prague, Czech Republic
Abstract NPI Řež U-120M multi-particle variable energy cyclotron system for positive ions extraction consists of three electrostatic deflectors, one active magnetic channel and an electromagnetic bump exciter. The deflectors transmission ratio for deuterons, alpha particles and Helium 3 ions is rather low, usually about 10%, for protons it is far below 5%. Based on an experience from other cyclotron laboratories, the general concept of the extraction system has been modified and the last two electrostatic deflectors were replaced with two magnetic channels. In the early stage of the upgrade, simulations were performed for protons at 28 MeV and Helium 3 ions at 44 MeV with and without the magnetic bump exciter. The extraction efficiency and beam losses along the extraction path are evaluated. The presented modified extraction system simulations suggest promising results. The total transmission ratio of the deflecting system has increased significantly, allowing work to continue and expect a positive final result.
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Conference Cyclotrons2019
Series International Conference on Cyclotrons and their Applications (22nd)
Location Cape Town, South Africa
Date 23-27 September 2019
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Lowry Conradie (iThemba LABS, Somerset West, South Africa); John Garrett De Villiers (iThemba LABS, Somerset West, South Africa); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-205-9
Received 15 September 2019
Accepted 26 September 2019
Issue Date 20 June 2020
DOI doi:10.18429/JACoW-Cyclotrons2019-TUP014
Pages 185-188
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.