Calculation of Dose Coefficients from Spallation Sources Using DCAL

Chandra Campbell
Idaho State University
Graduate Student of Health Physics

Abstract:  Dose coefficients are used in calculating doses from various radionuclides in the cases of inhalation, ingestion and injection into blood.  Dose coefficients can be easily calculated with Dose and Risk Calculation (DCAL) software developed at Oak Ridge National Laboratory.  DCAL uses biokinetic models and dosimetric data to calculate the dose coefficients and has been previously used in Federal Guidance Reports (FGR) Number 12 and Publications 68 and 72 of the International Commission on Radiological Protection (ICRP).  Dose coefficients for spallation sources are not included in these reports and need to be calculated.  With the use of Evaluated Nuclear Structure Data Files (ENSDF) maintained by the National Nuclear Data Center at Brookhaven National Laboratory and the EDISTR computer code that modifies ENSDF for input into DCAL, the gaps in FGR No. 12 and 13 and ICRP Publications 68 and 72 can be filled.