Database of radiological incidents and related events--Johnston's Archive

Maryland irradiator accident, 1991

compiled by Wm. Robert Johnston
last modified 26 October 2008

Date: 11 December 1991

Location: Maryland, USA

Type of event: accident at industrial irradiator


An accident at an electron accelerator irradiator resulting from safety violations caused severe radiation injury to one person. During maintenance an operator placed his heads, head, and feet in the beam from the electron dark current (while the electron source filament voltage was off but the high-voltage terminal on). Due to a dose of about 5,500-10,800 rem to the hands, four fingers on each hand had to be amputated about 3 months later. The man also suffered thinning of hair on the scalp after two weeks.

Consequences: 1 injury.


© 2004-2006, 2008 by Wm. Robert Johnston.
Last modified 26 October 2008.
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