A Remote-operated System to Map Radiation Dose in the Fukushima Daiichi Primary Containment Vessel M. Nancekievill, A. R. Jones, M. J. Joyce, B. Lennox, S. Watson, J. Katakura, K. Okumura, S. Kamada, M. Katoh and K. Nishimura EPJ Web Conf., 170 (2018) 06004 Published online: 10 January 2018 DOI: 10.1051/epjconf/201817006004