Extraction System for RFQ Cooler and Buncher

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HUANG Wen-Xue, WANG Yue, XU Hu-Shan, SUN Zhi-Yu, LI Zhan-Kui, XIAO Guo-Qing and ZHAN Wen-Long. Extraction System for RFQ Cooler and Buncher[J]. Chinese Physics C, 2005, 29(8): 802-805.
HUANG Wen-Xue, WANG Yue, XU Hu-Shan, SUN Zhi-Yu, LI Zhan-Kui, XIAO Guo-Qing and ZHAN Wen-Long. Extraction System for RFQ Cooler and Buncher[J]. Chinese Physics C, 2005, 29(8): 802-805. shu
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Received: 2004-11-12
Revised: 1900-01-01
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Extraction System for RFQ Cooler and Buncher

    Corresponding author: HUANG Wen-Xue,
  • Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China2 The graduate school of Chinese Academy of Sciences,Beijing 100049,China

Abstract: Two different systems, static electric guide and miniature RFQ (Radiofrequency Quadrupole), for ion extraction from a RFQ cooler and buncher have been discussed. By fluid dynamics calculation, the mass flow rate and possibly available vacuum of the being designed static electric extraction system have also been evaluated. We have made conclusions that the miniature RFQ should be used for a low helium buffer gas pressure to obtain a good beam quality, but for a higher gas pressure the static electric guide must be used. In addition, because the being designed RFQ cooler and buncher will always work in a relatively high gas pressure, the recycling and reusing of the high purity helium gas must be considered.

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