![]() ^ Planning the Medical Response to Radiological Accidents p.United Nations Scientific Committee on the Effects of Atomic Radiation. ^ a b c "Sources and Effects of Ionizing Radiation: 2008 UNSCEAR Report" (PDF).Nuclear and radiation accidents and incidents. ![]() 1990 Clinic of Zaragoza radiotherapy accident.Ciudad Juárez cobalt-60 contamination incident.The boy's father also received a significant radiation dose although he was left permanently sterile, he survived, presumably because he worked outside the home and his exposure was lower. Subsequently, his mother – six months pregnant at the time – died on July 19 his two-year-old sister died on August 18 and his paternal grandmother, who had been living with the family since April 17, died on October 15 that year. On April 1, his mother placed it in the kitchen cabinet of their home, where it remained until July 22. He kept it in his trouser pocket for several days. The boy is believed to have obtained the source some time after moving into the house on March 21. A 2008 report by UNSCEAR says it was left, unprotected, in the yard by an engineer. Reports differ as to the source's provenance: it was either found in a dump, found in a field, or was already in the house's yard when the affected family moved in and "was left to the family to keep and watch without any of the members of the family knowing exactly what the container was". Five individuals received significant overdoses of radiation from the 200- gigabecquerel cobalt-60 capsule, (A) An international standard source holder (usually lead), (B) a retaining ring, and (C) a teletherapy "source" composed of (D) two nested stainless steel canisters welded to two (E) stainless steel lids surrounding an (F) internal shield (usually uranium metal or a tungsten alloy) that protects a (G) cylinder of radioactive source material.īetween March and July 1962, a radiation incident in Mexico City occurred when a ten-year-old boy took home an industrial radiography source that was not contained in its proper shielding.
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