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Direct injection schemeによる高価数炭素ビームの大電流加速

Acceleration of high current and highly charged carbon beam using direct injection scheme

柏木 啓次; 岡村 昌宏*; Jameson, R. A.*; 服部 俊幸*; 林崎 規託*; 榊原 和彦*; 高野 淳平*; 山本 和男*; 岩田 佳之*; 藤本 哲也*

Kashiwagi, Hirotsugu; Okamura, Masahiro*; Jameson, R. A.*; Hattori, Toshiyuki*; Hayashizaki, Noriyosu*; Sakakibara, Kazuhiko*; Takano, Jumpei*; Yamamoto, Kazuo*; Iwata, Yoshiyuki*; Fujimoto, Tetsuya*

RFQ Linacとレーザーイオン源を組合せた手法"Direct injection scheme"によってレーザーイオン源からの高強度ビームをRFQ電場で捕獲し加速する研究を行っている。この方法によりNd-YAGレーザーイオン源からの高価数炭素イオンの加速実験を100MHz RFQ Linacで行った。

The carbon beam from a Nd-YAG laser ion source was accelerated successfully by an RFQ linac using Direct injection scheme. The "Direct injection scheme" is the way to inject an ion beam to the RFQ linac without a low energy beam transport line to avoid space charge effect due to a high intensity beam from the laser ion source. About 30mA of a carbon beam was detected by a faraday cup just behind the RFQ linac.

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