On February 14, the Tokyo Electric Power Co. (TEPCO) released a video showing a device with two “fingers” at the end lifting pebble-shaped deposits suspected of being melted nuclear fuel (debris) at the bottom of a reactor primary containment vessel (PCV). The recording was made during an investigation undertaken on the 13th at the Fukushima Daiichi-2 Nuclear Power Plant (BWR, 784MWe). The pebble deposits, shown clearly, were of different shapes and sizes. Of the ten locations where the device made contact with them, they could not be moved at three.
