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Train probe for beam diagnostics of the SC200 superconducting cyclotron

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Abstract

The SC200 proton therapy system commissioned by the Hefei CAS Ion Medical and Technical Devices Co., Ltd. (HFCIM; Hefei, China) and the Joint Institute for Nuclear Research (JINR; Dubna, Russia) has made significant progress. A main radial beam diagnostic system (MRBDS) equipped with a new type of train probe was developed to satisfy the requirements of beam diagnosis. In this paper, the detailed design of the mechanical structure and electronics system of the MRBDS is presented. The electronics system, which includes hardware and software components, was tested and calibrated. The results show that measurement errors can be significantly reduced by the designed calibration procedures. The repeatability of the mechanical structure was also verified, and the experimental results indicate that the unidirectional repeatability of the positioning is better than 0.3 mm. Finally, the MRBDS was used to measure the phase lag of the particles in the beam, and the results showed a high degree of agreement with theoretical calculations, which proved the applicability and high efficiency of the MRBDS.

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Authors and Affiliations

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

    Le-Xing Hu, Kai-Zhong Ding & Yun-Tao Song

  2. University of Science and Technology of China, Hefei, 230026, China

    Le-Xing Hu

  3. Hefei CAS Ion Medical and Technical Devices Co., Ltd, Hefei, 230088, China

    Yu-Cheng Wu & Kai Yao

Authors
  1. Le-Xing Hu
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  2. Kai-Zhong Ding
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  3. Yun-Tao Song
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  4. Yu-Cheng Wu
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  5. Kai Yao
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Corresponding author

Correspondence to Kai-Zhong Ding.

Additional information

This work was supported by the funding of the CN-RU cooperation cyclotron design (No. 1604b0602005).

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Hu, LX., Ding, KZ., Song, YT. et al. Train probe for beam diagnostics of the SC200 superconducting cyclotron. NUCL SCI TECH 31, 103 (2020). https://doi.org/10.1007/s41365-020-00808-4

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