Goiânia accident
The Goiânia accident was a radiation accident that happened on September 13, 1987, in Goiânia, in the Brazilian state of Goiás, after a forgotten radioactive source was taken from an abandoned hospital in the city. It was handled by many people, resulting in four deaths. About 112,000 people were examined for radioactive contamination and 249 of them were found to have been contaminated.
Goiânia Accident Media
A wheel type radiotherapy device which has a long collimator to focus the radiation into a narrow beam. The caesium chloride radioactive source is the blue rectangle, and gamma rays are represented by the beam emerging from the aperture.