プラズマ・核融合学会誌
Print ISSN : 0918-7928
小特集 「反水素研究とプラズマ物理」
反水素研究とプラズマ物理 3.低速反陽子ビームの発生•減速•冷却と陽電子プラズマの生成•制御
鳥居 寛之黒田 直史檜垣 浩之船越 亮大島 永康
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2004 年 80 巻 12 号 p. 1012-1021

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Antiprotons produced by a proton synchrotron are decelerated and cooled first to 5.3 MeV by stochastic cooling and electron cooling in the Antiproton Decelerator (AD) ring, then to 111 keV by a Radio Frequency Quadrupole Decelerator (RFQD). After the deceleration of the RFQD, antiprotons are degraded by thin PET foils and injected into the Multi-Ring electrode Trap(MRT). Electrons are preloaded in the MRT to cool the antiprotons to subelectron volt energy region. Ramping up the trapping potential slowly allows ultra-slow antiprotons of 10-500eV to be extracted from the strong magnetic field region. Positrons from 22Na are cooled by N2 gas or by electrons to form a cold positron plasma. A rotating electric field is used to radially compress the plasma.

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© 2004 by The Japan Society of Plasma Science and Nuclear Fusion Research (Japanese)
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