Colorado Pocket Dosimeter Readings

["Ed Stroud" <ed.stroud@state.co.us>]

Mr. Bristow,

What you failed to explain in your posting is that this dosimetry

requirement is part of an enforcement action against a specific

radiography company as a result of an overexposure incident.  (>5

Rem/yr)  The incident could have been prevented if the RSO had been

comparing pocket dosimeter readings with the monthly TLD reports. If he

had been making this comparison in the months prior to the overexposure,

he would have noted that the pocket dosimeter dose was under-reporting

the TLD exposure by 50%.  The corrective action was taken to force the

RSO to more closely monitor his dosimetry program and to prevent

additional overexposures of this type.  It should also be noted that

this particular radiography company has been the subject of other

escalated enforcement actions in the recent past.  If you have any

questions concerning this issue, please feel free to contact me

directly.



Ed Stroud, Health Physicist

Colorado Department of Public Health and Environment

ed.stroud@state.co.us

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