Shulou(Shulou.com)11/24 Report--

CTOnews.com April 5 News according to CCTV, the investigation video released by Tokyo Electric Power Company on the same day showed that the base of the reactor supported by Unit 1 of the Fukushima Daiichi nuclear power plant was seriously damaged.

The video shows that there is a suspected accumulation of nuclear residue on the base of the reactor, and most of the circle of the base has been damaged and steel bars have been exposed, so the seismic performance of Unit 1 is worrying. Tepco had previously thought that there was no problem with the anti-seismic performance of the unit, but this investigation found that some areas of the base were damaged more seriously than expected.

The Fukushima Daiichi nuclear power plant caused a nuclear accident on March 11, 2011 due to an earthquake off the Pacific Ocean in northeastern Japan and the accompanying tsunami. To the best of CTOnews.com 's knowledge, the accident was classified as the most serious level 7 in the International Nuclear event rating scale (INES). The March 2015 survey found that all nuclear fuel in the core had melted down. The accident was one of the secondary disasters of the East Japan earthquake. It is worth mentioning that the area affected by the accident as of March 2019 is close to the size of 337km2.

Tepco had previously said that there was no problem with the seismic performance of the reactor pedestal of Unit 1, but after the video was released, Tepco said it would continue to investigate the parts that could not be filmed this time and re-evaluate the earthquake resistance of the containment.

In December 2022, Tepco put underwater vehicles equipped with radiation detection sensors into the safety shell of stagnant water. The results of the analysis given in February 2023 show that the fuel fragments emit strong neutron rays and radiation from the radioactive material "Europium-154".

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.