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Simulation Study of the Beam Trajectory Effect on the Magnetic Field Distribution of a Duoplasmatron

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Abstract

Recently, a gas interface system was developed for accelerator mass spectrometry with a cesium sputtering ion source. A gaseous ion source was proposed and designed to eliminate the solidification and graphitization process in radiocarbon dating. A simulation study of the ion source for a gas sample analysis system was conducted to investigate the characteristics of the ion source when different anode shapes were used, and the results are reported in this paper. The use of different anode shapes revealed the influence of magnetic field penetration on the plasma within the expansion cup. An axial magnetic field constrains the discharge, producing greater ionization density. The ion beam trajectories from the ion source were calculated using the SIMION program to examine the dependence of the changes in the magnetic field distribution on the shape of the ion source’s anode.

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Authors and Affiliations

  1. Department of Nuclear & Energy System Engineering, Dongguk University, Gyeongju, 38066, Korea

    Sae-Hoon Park, Sang-Hun Lee & Yu-Seok Kim

Authors
  1. Sae-Hoon Park
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  2. Sang-Hun Lee
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  3. Yu-Seok Kim
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Correspondence to Yu-Seok Kim.

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Park, SH., Lee, SH. & Kim, YS. Simulation Study of the Beam Trajectory Effect on the Magnetic Field Distribution of a Duoplasmatron. J. Korean Phys. Soc. 73, 1093–1098 (2018). https://doi.org/10.3938/jkps.73.1093

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  • DOI: https://doi.org/10.3938/jkps.73.1093

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