jan 1, 1990 - Clinic of Zaragoza radiotherapy accident

Description:

Accident that occurred from 10 to 20 December 1990, at the Clinic of Zaragoza, in Aragon, Spain. The radiotherapy unit was repaired without following the correct instructions. The unit, in service 14 years at the time of the failure, had a breakdown in the electron beam accelerator control system ("deviator"). Repairs incorrectly increased output power, so patients that should have received therapy at 7 MeV were instead treated at 40 MeV.[ In the accident, at least 27 patients were injured, and 11 of them died, according to International Atomic Energy Agency

Added to timeline:

Date: