Applications of a General Computational Model for Composite Environmental Radiation Doses

general-purpose digi t a l .computer of r e g i o n a l r a d i a t i o n doses r e s u l t i n g from l a r g e -s c a l e u s e of nuclear energy was previously developed and r e p o r t e d .This general model h a s now been sub-divided t o permit r a p i d c a l c u l a t i o n s f o r t h e seve r a l exposure pathway groupings i n a n i n t e r a c t i v e mode using t h e RASTC computer language.The sub-programs a r e completely f l e x i b l e a s t o t h e n u c l i d e s , body organs, and pathways f o r which r a d i a t i o n doses are t o be c a l c u l a t e d , b u t i n c l u d e a t t h e p r e s e n t time: Approximately 150 r a d i o n u c l i d e s , including t r a n s u r a n i c s Doses t o whole body, s k i n , bone, lungs, t h y r o i d , and g a s t r o i n t e s t i n a l t r a c t Sub-programs f o r cloud submersion, i n h a l a t i o n of n u c l i d e s o t h e r than r a d i o i o d i n e s (resuspension of deposited n u c l i d e s i s n o t included), i n g e s t i o n of water and a q u a t i c f o o d s t u f f s along w i t h e x t e r n a l dose from water and sediments, and i n g e s t i o n of i r r i g a t e d crops.Thyroid dose from i n h a l a t i o n and i n g e s t i o n of i r r i g a t e d craps.Thyroid dose from i n h a l a t i o n and i n g e s t i o n and dose t o a q u a t i c b i o t a can a l s o be' c a l c u l a t e d .Dose f a c e o r s i n t h e programs f o r t h e v a r i o u s media-nuclide-organ combinations have been c a l c u l a t e d using ICRP methods.For r a d i o n u c l i d e s DISCLAIMERThis report was prepared as an account of work sponsored by an agency of the United States Government.Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.