Robot stops working in Fukushima reactor
NHK -- Feb 17
The operator of the crippled Fukushima Daiichi nuclear power plant says it suspended a survey by a robot at one of its reactors after the device stopped working.

Tokyo Electric Power Company, or TEPCO, sent the scorpion-shaped robot into the containment vessel of the plant's No. 2 reactor on Thursday.

The company believes fuel in the reactor melted through its core during the 2011 accident and accumulated at the bottom of the facility's containment vessel.

The survey was aimed at getting a close look at what could be fuel debris -- a mixture of nuclear fuel and melted parts of the reactor.

The robot was also expected to measure radiation and temperatures there to gather data for scrapping the reactor.

TEPCO officials say the device was advancing on a metal rail leading to a central area below the reactor's core, but stopped moving before it could reach the center.

東京電力は、福島第一原発2号機のロボット調査に16日朝から着手しましたが、目的とした炉心部へ進入はできず、ロボットの回収も断念しました。 東電は、線量計や高性能カメラを搭載したサソリ型ロボットを午前8時前から2号機の内部に投入し、炉心部への進入を試みました。
News sources: NHK, ANNnewsCH
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