Tokyo Electric Power Co. (TEPCO) on Jan. 22 released a portion of video footage taken inside the containment vessel of the No. 2 reactor at the disaster-hit Fukushima No. 1 Nuclear Power Plant.
The footage shows deposits in the shape of pebbles and clay spreading across the bottom of the vessel. TEPCO believes the deposits are part of nuclear fuel debris generated during the March 2011 reactor meltdowns and is analyzing the video.
The roughly 3 1/2-minute footage shows water injected into the vessel to cool the reactor dripping down and pooling on the bottom of the containment vessel. Deposits are also seen attached to a variety of inner apparatus, including the drive system for the control rods.
The utility earlier released still images of the inside of the containment vessel, which were captured by a camera attached to an approximately 13-meter-long pipe inserted into the vessel.