Dosimetry internal dose calculation

The calculation of potential total dermal exposure of mixer-loaders and re-entry workers using dosimetry data and calculation of the internal dose using biological monitoring data is complex but will be discussed briefly. 

The internal dose (ID) for workers can be calculated by using the analytical data from the urine collection carried out simultaneously with the dosimetry. The calculation of the ID using urine data is complex and will not be dealt with in detail. However, there are several references, that can help guide one through such calculations. Nolan et al have addressed this subject in great detail, as have other researchers. 

The contractor has reported that actions required to achieve full compliance in the reactor facilities have been completed including modification of procedures and computer programs for dose calculations. Additionally, WSRC has issued a Technical Basis Manual (Reference 26) intended to provide a technical and philosophical discussion of the radiobioassay and dose assessment aspects of the internal dosimetry program. 

Dose calculation methods have been formally documented in the Technical Basis Manual issued on December 20, 1990. However, an assessment of the personnel dosimetry program, including internal dose assessment methods, will not be completed by DOE until the end of January 1991. This will remain an open item until the results of the assessment are known and any discrepancies are resolved. 

---