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                                                RADTRAN/RADCAT Code System

 

1.   NAME AND TITLE

      RADTRAN 5.6: System for Analyzing the Radiological Impact of the Transportation of Radioactive Materials.

 

RADTRAN is no longer distributed through RSICC.

https://radtran.sandia.gov/

 

RADTRAN 5.6 bundled with RADCAT 2.3 may be downloaded from https://radtran.sandia.gov/radcat. This site asks the potential user to fill out a short application, when the application is approved (which takes a day or two), the user is notified by email and can download the program.  The program requires no installation, but the latest Java release must be on the user’s computer. The RADCAT 2.3 User Guide, the uncertainty module, and other documents can be downloaded from https://radtran.sandia.gov

RADTRAN4 is obsolete. It was previously distributed by RSICC as CCC-508 but is no longer available.

 

2.   CONTRIBUTOR

      Sandia National Laboratories, Albuquerque, New Mexico.

 

3.   CODING LANGUAGE AND COMPUTER

      Fortran 95 and Java; PC with Windows 98, 2000, XP, Vista.

 

4.   NATURE OF PROBLEM SOLVED

      RADTRAN 5.6  is a computer code system used to analyze the radiological impact of the transportation of radioactive materials.  The two principal computations performed by the code are assessments of the radiological impacts of routine. incident-free transportation of radioactive material impacts of vehicular accidents involving radioactive material shipments.  RADTRAN 5.6 includes a dynamic dispersion code for estimating effects of elevated and ground-level releases of radioactive material, a unique code for estimating effects of external radiation from routine transportation, and  advances in the handling of route-related data and in the treatment of multiple-isotope materials.  Output of the routing code WebTRAGIS can be imported electronically into RADTRAN 5.6.  The GUI input file generator RADCAT 2.3, bundled with RADTRAN 5.6 for download, generates the user’s input file and couples it to RADTRAN 5.6.

 

5.   METHOD OF SOLUTION

      The modes used to transport radioactive material include trucks, passenger vans, railcars, airplanes, barges,  and other water transport.  For routine, incident-free transportation and transportation accidents that do not involve release of radioactive material,  RADTRAN 5.6 models the external radiation dose rate is a spherically radiating virtual source at the center of the cargo.  Radioactive material released in an accident is dispersed using Gaussian dispersion.  RADTRAN 5.6 allows the user three types of meteorological inputs to the dispersion calculation.  RADTRAN 5.6 calculates both doses and health effects.  Radionuclide-specific doses are also output.  An uncertainty module that uses Monte Carlo sampling is available with RADTRAN 5.6.  RADTRAN 5.6  is fully validated and verified and V&V documentation is available. 

 

6.   RESTRICTIONS OR LIMITATIONS

      There are no apparent limitations due to programming dimensions.

     

7.   TYPICAL RUNNING TIME

      A single RADTRAN 5.6 analysis is essentially instantaneous on a PC equipped with a Pentium III or better or equivalent.  100 RADTRAN 5.6 analyses run in less than a minute.

 

8.   COMPUTER HARDWARE REQUIREMENTS

      RADTRAN 5.6 runs on any PC with a Pentium III or better or equivalent. RADTRAN 5.6 does not require installation, but is downloadable. The input file generator runs under Java Webstart, which is freeware downloadable from www.java.com.

 

9.   COMPUTER SOFTWARE REQUIREMENTS

      The source is written in Fortran 95, but only executable files are distributed for RADTRAN 5.6, which runs on PC computers under Windows 98, 2000, XP, and Vista.  The input file generator RADCAT is written in Java  and runs under Java Webstart and is platform independent.  The uncertainty module is written in Visual Basic and runs on a PC.

 

10. REFERENCES

      a)  Included:

      Weiner, R.F., Osborn, D. M., Mills, G.S., Hinojosa, D., Heames, T.J., and Orcutt, D.J. “RadCat 2.3 User Guide,” SAND2006-6315 (October 2006); this reference contains basic RADTRAN information also.

 

      b)  Background information:

      Neuhauser, K.S.; Kanipe, F.L.; and Weiner, R.F.  “RADTRAN 5, Technical Manual.”  SAND2000-1256.  Albuquerque, New Mexico:  Sandia National Laboratories. (2000)

 

11. CONTENTS OF CODE PACKAGE

  https://radtran.sandia.gov/

 

 

12. DATE OF ABSTRACT

      April 2009.

 

KEYWORDS: AIRBORNE; ENVIRONMENTAL DOSE; RADIOACTIVITY RE­LEASE; TRANSPORTATION ACCIDENTS