The Man Who Survived 83 Days of Radiation Hell

The Tokaimura Nuclear Accident (1999)

On September 30, 1999, Ouchi was a technician at the JCO facility where he and coworkers Masato Shinohara and Yutaka Yokokawa were speeding up the last steps of a fuel conversion process to meet shipping requirements. To save time, they mixed chemicals in stainless-steel buckets instead of following proper procedures. The precipitation tank reached critical mass with about 16 kg of uranium, causing an uncontrolled nuclear fission reaction. (Wikipedia)

Radiation Exposure

According to radiation testing, Ouchi was exposed to 17 Sv of radiation, Shinohara received 10 Sv, and Yokokawa received 3 Sv. (Wikipedia) Normal background radiation produces about 2 to 4 millisieverts annually, and doses of more than 5 sieverts have typically been fatal. (Science)

Medical Treatment and Death

Ouchi, 35, was treated at the University of Tokyo Hospital for 83 days. He suffered serious radiation burns to most of his body, severe damage to internal organs, and a near-zero white blood cell count. Doctors tried to restore immune system functionality through peripheral blood stem cell transplantation, which was a new form of treatment at the time. (Wikipedia)
The two technicians who received the higher doses, Ouchi and Shinohara, died several months later. (Wikipedia)

His case remains a tragic reminder of the
dangers of nuclear accidents and the importance of proper safety protocols and training in handling radioactive materials.This is the most horrific medical case in history #science #medical #history #scary #Shorts

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