At 0830 PST on 2/22/06 following a radiography shoot at the BP Refinery in Carson, CA, the Assistant Radiographer approached the camera without a survey meter and disconnected the guide tube. The Radiographer noticed that the pigtail was hanging out indicating that the source was not in the shielded volume. A preliminary estimate of the
overexposure to the Assistant Radiographer is between 128 - 358
Rem to either hand based on a duration of 14 seconds from a 62.88 Ci
Ir-192 source used in the INC-IR100 camera, S/N 6744. The Assistant Radiographer's pocket dosimeter (
PD) showed off-scale high (100 mR) while the Radiographer's
PD indicated 10 mR. Both employee's submitted their
OSLs (Optically Stimulated Luminescent) whole body badges for readings. The Assistant Radiographer has no physical manifestations of a radiological
overexposure at this time. The State of CA was notified at 1150 PST and has initiated an investigation into this incident.
CA Investigation # 022206.