ENS 44535: Difference between revisions

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| event date = 09/29/2008 13:00 CDT
| event date = 09/29/2008 13:00 CDT
| last update date = 10/21/2008
| last update date = 10/21/2008
| title = Agreement State Report - Potential Overexposure To Extremities
| title = Agreement State Report - Potential Overexposure to Extremities
| event text = A radiographer working for METCO was performing radiography operations at CB & I Fabricators in Houston TX.  He was moving the radiography camera (a SPEC 150 with a 85 curie Ir-192 source) from one location to another.  He removed the nipple off the front of the camera to test the guide tube and his dosimetry started alarming.  He observed that the source had come out of the camera about 1/2 inch.  At the same time, he inadvertently dropped the camera plug.  He picked up the plug and unsuccessfully made two attempts to push the source back in with the plug.  He then left the front of the camera and went around and turned the crank and got the source back into the shielded position and then inserted the plug.  He then notified appropriate personnel.   
| event text = A radiographer working for METCO was performing radiography operations at CB & I Fabricators in Houston TX.  He was moving the radiography camera (a SPEC 150 with a 85 curie Ir-192 source) from one location to another.  He removed the nipple off the front of the camera to test the guide tube and his dosimetry started alarming.  He observed that the source had come out of the camera about 1/2 inch.  At the same time, he inadvertently dropped the camera plug.  He picked up the plug and unsuccessfully made two attempts to push the source back in with the plug.  He then left the front of the camera and went around and turned the crank and got the source back into the shielded position and then inserted the plug.  He then notified appropriate personnel.   
METCO sent his dosimetry off and the results came back with a whole body exposure of 946 millirem on October 1.  The RSO discussed the details of the event with the radiographer and reenacted the event to attempt to estimate the radiographer's hand exposure because to the close proximity of the source to the hand during the event.  Based on the time and distance of the source to the hand, it was estimated that the exposure to the radiographer's right hand may be somewhere between 66 and 282 rem.  METCO has called in a consultant to get a more accurate assessment of the exposure to the hand.   
METCO sent his dosimetry off and the results came back with a whole body exposure of 946 millirem on October 1.  The RSO discussed the details of the event with the radiographer and reenacted the event to attempt to estimate the radiographer's hand exposure because to the close proximity of the source to the hand during the event.  Based on the time and distance of the source to the hand, it was estimated that the exposure to the radiographer's right hand may be somewhere between 66 and 282 rem.  METCO has called in a consultant to get a more accurate assessment of the exposure to the hand.   

Latest revision as of 22:13, 1 March 2018

ENS 44535 +/-
Where
Metco
Houston, Texas (NRC Region 4)
License number: L-03018
Organization: Texas Department Of Health
Reporting
Agreement State
Time - Person (Reporting Time:+88.97 h3.707 days <br />0.53 weeks <br />0.122 months <br />)
Opened: Art Tucker
10:58 Oct 3, 2008
NRC Officer: Bill Huffman
Last Updated: Oct 21, 2008
44535 - NRC Website