INES-event
INES 2

Worker overexposure during maintenance

This updated information includes data related to the actual dose received by the agent involved in the event occurred in September 1st 2005 at Atucha 1 N.P.P
Such event took place while calibration actions were taking place in the recently replaced fuelling machine.
Evaluations and measurements of the received dose due to tritium incorporation determined that only one agent exceeded dose limits.
According to the final assessment, an effective dose by internal incorporation received by the agent was 41,85 mSv.
The dose received during this event, added to the annual effective dose already received before that date, gave for the agent a total value of 54,48 mSv/year and 133,98 mSv over the last 5 years.
The root cause of the event is still being analysed

Location: ATUCHA-1
Event date: Thu, 01-09-2005
Nuclear event report
Legenda & explanation