Suspected plutonium found at the site of Japan's worst internal radiation accident, injured are still recovering
China news network June 10, according to Japanese media reports, the Japanese Atomic energy research and development agency revealed on the 9th of this month, the staff of the "Big wash research and development center" in the country's Ibaraki County suffered from excessive nuclear radiation accident, radioactive material flying on the indoor ground scattered with a number of black blocks, May be placed radioactive material in the metal storage container plastic bag burst flying out of plutonium.
As for the cause of the bag's rupture, the agency explained that it may have been caused by gas produced by radiation released by the plutonium, which caused the pressure inside the bag to rise, according to the report.
Japan's Atomic Energy Regulation Authority revealed that the maximum radiation value of radioactive materials detected in the room at the accident site reached about 14 times the legal limit for entering the room. Since the indoor value is usually lower than the forbidden number (4 becquerels), it once again reflects that there has been a large amount of radioactive material flying.
It is reported that the metal storage container in which the radioactive material was stored has not been opened since 1991. Toshio Kodama, director general of the agency, told the media on the 9th that a rupture was "not envisaged". As an organization, the lack of safety measures is exposed, which may lead to criticism that the perception is too naive. Kodama said it would revise its procedures.
According to the NRA, the agency conducted wiping tests at 14 places in the room and detected 55 becquerels of radioactive material on the ground in front of the equipment that houses the radioactive material storage container.
The Ministry of Education, Culture, Sports, Science and Technology said that the agency employee in his 50s heard an abnormal sound when he unscrewed four of the six screws on the lid of the storage container to open it. After confirming that no radioactive material had leaked, the plastic bag broke when the remaining two screws were unscrewed.
It is reported that the health of the five workers has not changed so far, and they are receiving medication to expel radioactive materials from the body. Kodama apologized at a meeting to report the accident and countermeasures to the ministry of Liberal Arts, saying, "I am deeply sorry for causing a major situation."