'Most radioactive man' Hisashi Ouchi was kept alive for 83 days after nuclear blast horror

The 1999 Tokaimura Nuclear Power Plant explosion was the worst nuclear accident in Japan for years - and the start of 83 days of living hell for technician Hisashi Ouchi who was caught in the huge uranium explosion.

As nuclear technician Hisashi Ouchi helped a colleague to pour litres of uranium in to a huge metal vat, he was blissfully unaware that these would be his final moments without pain.