Recriticality cannot be completely excluded

http://www.tepco.co.jp/en/decommision/index-e.html

July 2016

Video: Preventing Recriticality in Fuel Debris
at Fukushima Daiichi Nuclear Power Station

This video will explain the conditions of the fuel retained in the reactors of Units 1-3 at Fukushima Daiichi Nuclear Power Station, and TEPCO's measures to prevent recriticality-return to a point at which a nuclear reaction becomes self-sustaining- in the fuel debris there.

Watch the video here

Video: "The current situation at Fukushima Daiichi NPS"
-From 3.11 toward the future- (ver, Jan. 2017)

http://www.tepco.co.jp/en/decommision/index-e.html

Fukushima Daiichi Nuclear Power Station was attacked by a huge tsunami caused by Tohoku Pacific Ocean earthquake on March 11 2011.

We would like to show you the latest situation of Fukushima Daiichi, looking back the time of the accident.

http://www.tepco.co.jp/en/news/library/archive-e.html?video_uuid=o6iw41m6&catid=61795

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