Database of radiological incidents and related events--Johnston's Archive Radiation accidents and other events causing radiation casualties--tabulated data compiled by Wm. Robert Johnston

last updated 20 January 2014

This is a listing (incomplete) of radiation accidents and other events (e.g. intentional acts) that resulted in acute radiation exposures to humans sufficient to cause casualties. For sources and for details on specific events see individual pages at Database of Radiological Incidents and Related Events or follow links in table.

Notes and codes:

code: coding for type of accident. Codes: A -- radiation accident (unspecified or other) A-R -- accident involving nuclear reactor A-NR -- accident involving naval reactor A-PR -- accident involving power reactor AC -- criticality accident AC-RR -- criticality accident involving research reactor A-a -- accelerator accident A-d -- accidental dispersal of radioactive material A-i -- accidental internal exposure to radioisotope A-ir -- irradiator accident A-mr -- medical radiotherapy accident A-mx -- medical x-ray accident A-os -- orphaned source accident A-osd -- accidental dispersal of orphaned source A-rg -- radiography accident A-s -- accidental exposure to source A-x -- x-ray accident I-a -- intentional exposure of individual (assault) I-c -- criminal act (unspecified) I-s -- intentional self-exposure I-t -- exposures resulting from theft of source NT -- nuclear weapon test NW -- combat use of nuclear weapon

coding for type of accident. Codes: highest dose: highest dose to any individual; in cases of more than one casualty, most doses were significantly lower. Codes: L -- casualties involving localized exposures N -- the individual(s) receiving the highest dose died from effects other than ionizing radiation

highest dose to any individual; in cases of more than one casualty, most doses were significantly lower. Codes: deaths: figures are for ionizing radiation-induced deaths only; parenthetical figures include those from other effects (e.g. thermal and mechanical results of explosions). Code: F -- indicates fetal deaths.

figures are for ionizing radiation-induced deaths only; parenthetical figures include those from other effects (e.g. thermal and mechanical results of explosions). Code: public: codes indicating case involved known exposure to the public (i.e. non-employees). Codes: c -- criminal acts in which only perpetrators were injured m -- medical, exposure of patients x -- exposures among public

codes indicating case involved known exposure to the public (i.e. non-employees). Codes: source: radioisotope involved, if known. Codes: * NW -- nuclear detonations * -- criticality accidents

radioisotope involved, if known. Codes: release: radioactive release into the environment, if any; for point events (e.g. criticality accidents or nuclear detonations), activity is for 1 hour after event.

© 2004-2012, 2014 by Wm. Robert Johnston.

Last modified 20 January 2014.

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