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Theoretical analysis of some problems in the measurement of beam divergence angle for EAST neutral beam injector

  • Research Paper
  • Special Issue on the First Chinese Particle Accelerator Conference (2010)
  • Published:
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Abstract

Beam angular divergence is one of the indicators to evaluate the beam quality. Operating parameters of the beam extraction system could be adjusted to gain better beam quality following the measurement results, which will be helpful not only to study the transmission characteristics of the beam and the power distribution on the heat load components, but also to understand the real-time working condition of the ion source and beam extraction system. This study includes: (1) the theoretical analysis of beam extraction pulse duration for measurement of beam angular divergence; (2) the theoretical analysis of beam intensity distribution during beam transmission for Experimental Advanced Superconducting Tokomak (EAST) neutral beam injector. Those theoretical analyses could point the way to the measurement of beam divergence angle for EAST neutral beam injector.

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Authors and Affiliations

  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China

    YongJian Xu & ChunDong Hu

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  1. YongJian Xu
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  2. ChunDong Hu
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Correspondence to YongJian Xu.

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Xu, Y., Hu, C. Theoretical analysis of some problems in the measurement of beam divergence angle for EAST neutral beam injector. Sci. China Phys. Mech. Astron. 54 (Suppl 2), 300–304 (2011). https://doi.org/10.1007/s11433-011-4546-z

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  • DOI: https://doi.org/10.1007/s11433-011-4546-z

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