On May 27, local time, according to the Japan Broadcasting Association (NHK), regarding the unidentified deposits found inside Unit 1 of the Fukushima Daiichi Nuclear Power Plant in Japan, the results of an investigation by Tokyo Electric Power Company showed that these materials are likely to be melted. Nuclear fuel and fuel fragments mixed with other substances.
TEPCO started the investigation in February, and began to use robots to conduct internal detection in mid-May. The result was that neutrons were detected at four inspection points in Unit 1.
The Tokyo Electric Power Company said that these deposits are likely to be fuel debris.
After the Fukushima nuclear accident in 2011, Fukushima Daiichi Nuclear Power Plant Units 1 to 4 suffered from nuclear fuel rod melting, hydrogen explosion and other accidents of varying degrees.
According to the plan of the Japanese government, the scrapping of the Fukushima Daiichi nuclear power plant is mainly divided into three stages: nuclear contaminated water treatment, nuclear fuel removal and the overall dismantling of the "waste furnace" of the nuclear power plant.
It is planned to take 10 to 15 years from around 2021 to take out all the nuclear fuel.
(Produced by Wang Jiayi)
Responsible editor: [Sun Jingbo]