Development of an omnidirectional rotating Compton camera for imaging 177Lu radioactive contamination - Hikari Tsukamoto; Hiroshi Muraishi; Ryoji Enomoto; Hideaki Katagiri; Mika Kagaya; Takara Watanabe; Takahiro Mizoguchi; Masaya Fukumoto; Daisuke Kano; Yusuke Watanabe; Kazuya Sakaguchi; Hiromichi Ishiyama (PLoS ONE)