A 34-year-old man has been exposed to roughly 1,000 times the annual amount of radiation permissible while installing radiotherapy equipment at a government-run hospital in Tokyo, officials at the science and technology ministry said.
According to officials, the accident occurred at a newly built building at Okura Hospital in Setagaya Ward at around 9:30 a.m. on Friday.
The man, an employee of a subcontractor under medical equipment dealer Toshiba Medical Systems Co., was taken to a hospital in Shinagawa Ward but has not shown acute radiation symptoms, such as nausea, they said.