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

Tecnos radiography accident, 2007

compiled by Wm. Robert Johnston
last modified 19 November 2011

Date: 22 October 2007

Location: SGS Tecnos SA, Spain

Type of event: radiography accident


An accidental overexposure occurred at a facility using a 55 Ci Co-60 source for industrial radiography in an enclosed room. In place of a broken interlock access control system, two fixed radiological sensors with visual alarms were being used. A worker was in the room using a dosimeter with an acoustic alarm and a radiometer, but these had been failing occasionally. The worker missed the visual alarms from the fixed sensors and was in the room with the source exposed for 10-15 minutes. The worker's dosimeter indicated a dose of 71.8 rem. On 29 October the worker was sent for medical examination.

Consequences: 1 injury


© 2011 by Wm. Robert Johnston.
Last modified 19 November 2011.
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