Visualisation of γH2AX foci caused by heavy ion particle traversal; distinction between core track versus non-track damage. oleh Nakako Izumi Nakajima, Holly Brunton, Ritsuko Watanabe, Amruta Shrikhande, Ryoichi Hirayama, Naruhiro Matsufuji, Akira Fujimori, Takeshi Murakami, Ryuichi Okayasu, Penny Jeggo, Atsushi Shibata