1. NAME AND TITLE

PROCIV: A Code System for Calculating the Protection Factors Against Radioactive Fallout for Apartment Buildings.

2. CONTRIBUTOR

Joint Army-Civil Defense Committee, Arcueil, France, through the OECD Nuclear Energy Agency Data Bank, Gif-sur-Yvette, France.

3. CODING LANGUAGE AND COMPUTER

Fortran V; UNIVAC 1110.

4. NATURE OF PROBLEM SOLVED

PROCIV calculates the protection factors against radioactive fallout for apartment buildings. There are three versions of the code: (1) calculations made on an isolated dwelling, (2) calculations made on a dwelling accounting for the surroundings, (3) like version 2 but imposing 12 environmental possibilities that are common in a residential area.

5. METHOD OF SOLUTION

Each house is simulated by a cylindrical tower. The material thickness traversed by the photons is converted to an equivalent layer of air. The masking by neighboring houses is taken into account.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

No study has been made by RSIC of typical running times for PROCIV.

8. COMPUTER HARDWARE REQUIREMENTS

PROCIV operates on the UNIVAC 1110 computer.

9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran V compiler is required.

10. REFERENCES

B. Warme-Janville, "The PROC IV Code for UNIVAC Series 1100 (Version ETCA-CNBC)," OLS-S4-38 (Informal notes).

B. Warme-Janville, "Simple Evaluation of Protection Against Radioactivity in a Group of Modern Apartment Buildings in a Residential Area," 0 7.1-no. 231.

11. CONTENTS OF CODE PACKAGE

Included are the referenced documents and one (1.2MB) DOS diskette which contains the source code and sample problem input.

12. DATE OF ABSTRACT

August 1986.