1. NAME AND TITLE

INTERTRAN-I: A Code System for Assessing the Impact from Transporting Radioactive Material.

AUXILIARY ROUTINES

INREAD: An interactive program for generating the INTERTRAN-I input data file.

UPEML: A machine-portable CDC UPDATE emulator.

2. CONTRIBUTORS

IAEA, Vienna, Austria.

OECD Nuclear Energy Agency Data Bank, Gif-sur-Yvette, Cedex, France.

3. CODING LANGUAGE AND COMPUTER

Fortran V; NAS 9080 (IBM-like), CYBER-740, VAX 11/780.

4. NATURE OF PROBLEM SOLVED

INTERTRAN-I calculates the radiological impact from incident-free transports and vehicular accidents involving radioactive materials. The code also handles accidents which may occur during handling operations.

5. METHOD OF SOLUTION

The INTERTRAN-I code deals with several submodels. In the standard shipment model, the shipments have to be divided into standard shipments. The transportation model can handle ten different transport situations. The population density model can handle three population density zones. The incident-free dose calculation calculates doses to crew, passengers, flight attendants, handlers, population surrounding transport link, population traveling on transport link, population near the transport vehicle while stopped, and warehouse personnel. The accident categorization model contains frequencies of occurrence for different accident severities in different environments. The material dispersibility model takes into consideration the dispersibility difference due to the chemical and physical properties of the materials shipped. The atmospheric dispersion model calculates the time-integrated concentration at a specific distance from the release. The health effects model analyzes early fatalities and morbidities, latent cancer fatalities, and genetic effects.

6. RESTRICTIONS OR LIMITATIONS

Three population density zones, 200 different shipments per run, 10 different package types, 80 material types, 10 transport modes, 11 accident severity categories, 30 iso-dose areas, 30 rem levels, 8 organs for dose calculation, 5 early fatality organs, 11 material dispersivity categories, 10 material categories.

7. TYPICAL RUNNING TIME

The sample problems for INTERTRAN-I required CPU times of 0.85s (NAS 9080), 13.79s (CDC CYBER-740), and 12.84s (VAX 11/780).

8. COMPUTER HARDWARE REQUIREMENTS

INTERTRAN-I requires 284 K bytes on NAS 9080, 140 K octal words on CDC CYBER-740, and 300 K bytes on VAX 11/780.

9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran V compiler is required. Operating systems are NOS (CDC CYBER-740), MVS-XA (NAS 9080), and VMS (VAX-11/780).

10. REFERENCES

A. M. Ericsson and M. Elert, "INTERTRAN: A System for Assessing the Impact from Transporting Radioactive Material," IAEA-TECDDC-287 (Update for INTERTRAN-I March 1986).

G. B. Pettersson, "Chairman's Report of the Technical Committee on the Assessment of the Radiological Impact from the Transport of Radioactive Materials," IAEA-TC-556 Vienna, 21-25 October 1985.

Y. Yamaguchi and E. Sartori, "Improved Maintenance and Portability in a Generalized Version of the INTERTRAN Computer Code," Fifth Meeting of the Standing Advisory Group on the Safe Transport of Radioactive Materials, 25-27 March 1986, DAGSTRAM-WP20.

T. A. Mehlhorn and M. F. Young, "UPEML - A Machine Portable CDC UPDATE Emulator," SAND 84-1896 (December 1984).

11. CONTENTS OF CODE PACKAGE

Included are the referenced document and one (1.2MB) DOS diskette which contains the source codes and sample problem input and output.

12. DATE OF ABSTRACT

August 1986.