TEPCO, NISA is to evaluate the content of submission of negative critical

A problem has been detected xenon radioactive Unit 2 nuclear power plant first Fukushima Tokyo Electric Power Industry Minister of Economy, Yukio 枝野 at a press conference after a cabinet meeting on May 4, the TEPCO "The cause is spontaneous fission of radioactive materials, is due to the critical not, "said yesterday that it has submitted a report to NISA that. ...TEPCO, NISA is to evaluate the content of submission of negative critical