The 12UD Pelletron tandem accelerator at the University of Tsukuba suffered serious damage from the Great East Japan Earthquake on 11 March 2011. A post-quake reconstruction project has been started to construct a new middle-sized tandem accelerator instead of the broken 12UD Pelletron tandem accelerator at the 2nd target room connecting the beam line to existing facilities at the 1st target room. The new accelerator system consists of the 6 MV Pelletron tandem accelerator, new 4 ion sources, an existing Lam-shift polarized ion source and 12 beam lines. It is expected to apply for nuclear physics, accelerator mass spectrometry and ion beam applications. The construction of the new accelerator system will be completed by spring 2014.

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