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Report No.

Operation of the electrostatic accelerators at TIARA

Uno, Sadanori; Chiba, Atsuya; Yamada, Keisuke; Yokoyama, Akihito; Agematsu, Takashi; Saito, Yuichi; Ishii, Yasuyuki; Sato, Takahiro; Okubo, Takeru; Yokota, Wataru; Kitano, Toshihiko*; Takayama, Terumitsu*; Orimo, Takao*; Kanai, Shinji*; Aoki, Yuki*; Yamada, Naoto*

The yearly operation time of three electrostatic accelerators at TIARA of Japan Atomic Energy Agency in 2010 was the tandem accelerator, the ion implanter and the single-ended accelerator amounted to 2,116, 1,800 and 2,367 hours, respectively. The tandem accelerator operated smoothly in this year, but stop times by trouble of the ion implanter and the single-ended accelerator was 1 and 2 times, respectively. Three electrostatic accelerators did not have damage when the Tohoku Earthquake occurred on March 11, 2011. However, these accelerators were not able to operate during the planned power outage by Tokyo Electric Power Company (TEPCO). The tandem accelerator accelerated ion beam of In, which gave intensity of 500 nA with stability. Additionally, the ion implanter generated maximum 400 nA at ion beam of Gd, which was used in experiments for the users.



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