Ref - Nucleus

.2.1 The Goiania accident. 2.2. 1.1. Overview . This case is an example of a radiological accident that gave rise to both internal and external exposure. On the 13th of September 1987, a shielded, strongly radioactive Cs-137 source (50.9 TBq, 1375 Ci, at the time of the accident) was removed from its protective housing in a teletherapy machine in an abandoned clinic in Goiania, Brazil, and ... ................
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