No sign of sustained fission in wrecked Japan reactor
TOKYO Nov 3 (Reuters) - Radiation detected by operator of a tsunami-hit nuclear power plant in Japan was not the result of sustained nuclear fission, the utility said on Thursday.
Tokyo Electric Power on Wednesday said it discovered xenon, a byproduct of fission, in the No 2 reactor at its Fukushima Daiichi plant, and had poured in a mixture of water and boric acid, an agent that helps prevent nuclear reactions, as a precaution.
"Analysis suggests that it was not a criticality," Ai Tanaka, a spokeswoman for the company, commonly known as Tepco, said.
The nuclear facility was struck by a devastating earthquake and tsunami in March and has released radiation into the atmosphere ever since in the world's worst nuclear crisis since Chernobyl 25 years ago.
(Reporting by Tim Kelly; Editing by Ed Lane)
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