1. NAME AND TITLE
EDO: A Code System in Fortran V for the Evaluation of Dose During Normal Operation of a
Nuclear Power Plant.
Calculation Center of the Politechnical University, Valencia, Spain, through the OECD NEA Data
Bank, Gif-sur-Yvette, France.
3. CODING LANGUAGE AND COMPUTER
Fortran V; UNIVAC 1110.
4. NATURE OF PROBLEM SOLVED
EDO evaluates individual and collective doses to man from routine releases of nuclear plant
5. METHOD OF SOLUTION
Radiation exposures for maximum individuals and population are estimated within 30 km from the
nuclear plant. This area is divided into 160 circular trapezoids to which computations are referred.
Four age groups, seven organs for internal dose, and two for external dose have been considered.
Dose calculations are done through 14 pathways; 7 of these are for liquid effluents, one for noble
gases, 6 for the rest of gaseous effluents.
6. RESTRICTIONS OR LIMITATIONS
The maximum dimension sizes preset in EDO are:
73 radionuclides (other than noble gases)
15 noble gases
160 circular trapezoids
31 chemical elements
4 types of aquatic foods
15 points of exposure for shorelines 15 trapezoids influenced by each point 4 terrestrial food pathways
100 population centers.
Some of these limits can be varied.
7. TYPICAL RUNNING TIME
EDO consists of a main program and 8 subroutines for calculations. Running time for a case
which considers all the subroutines, 46 nuclides (liquid effluents), 12 nuclides (gaseous effluents), and
11 noble gases is about 26 minutes. 1 minute 20 seconds of this is CPU time.
8. COMPUTER HARDWARE REQUIREMENTS
EDO was developed on the UNIVAC 1108 computer and was tested and operates on the UNIVAC
9. COMPUTER SOFTWARE REQUIREMENTS
EDO uses the EXEC-8 Operating System.
J. R. Diago and V. S. Garcia, "EDO: A Code in Fortran V for the Evaluation of Dose During
Normal Operation of a Nuclear Power Plant," (in Spanish) (November 1980).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source
codes, sample problem input, and libraries.
12. DATE OF ABSTRACT
KEYWORDS: ENVIRONMENTAL DOSE; RADIOACTIVITY RELEASE; AIRBORNE;
NUCLIDE TRANSPORT, LIQUID PATHWAY