RSICC Home Page

RSIC CODE PACKAGE CCC-552


1. NAME AND TITLE

RESRAD 5.82: Code System to Implement Residual Radioactive Material Guidelines, and RESRAD-BUILD 2.36.

AUXILIARY CODE

RESRAD-BUILD 2.36: A Pathway Analysis Model.

2. CONTRIBUTOR

Argonne National Laboratory, Argonne, Illinois.

3. CODING LANGUAGE AND COMPUTER

Fortran 77 and BASIC; PC386 or greater. (C00552/PC386/05)

4. NATURE OF PROBLEM SOLVED

RESRAD is designed to calculate site-specific residual radioactive material guidelines, and radiation dose and excess cancer risk to an on-site resident (maximally exposed individual). A guideline is a radionuclide concentration or level of radioactivity that is acceptable if a site is to be used without radiological restrictions. Guidelines are expressed as concentrations of residual radionuclides in soil. Soil is unconsolidated earth material, including rubble and debris that may be present. The guidelines are based on the following principles: (1) the total effective dose equivalent should not exceed 100 mrem/yr for all plausible land uses and 30 mrem/yr for current and likely future land uses and (2) doses should be kept as low as reasonably achievable (ALARA). Nine environmental pathways are considered: direct exposure, inhalation of dust and radon, and ingestion of plant foods, meat, milk, aquatic foods, soil, and water.

RESRAD-BUILD Version 2.36 is a pathway analysis model designed to evaluate the potential radiological dose incurred by an individual who works or lives in a building contaminated with radioactive material. The radioactive material in the building structure can be released into the indoor air by mechanisms such as diffusion (radon gas), mechanical removal (decontamination activities), or erosion (removable surface contamination.)

In the June 1998 update, RESRAD was updated to Version 5.82 and RESRAD-BUILD was updated to version 2.36. The following notes highlight new features:

RESRAD 5.82 (4/30/98):

Allow plot data to be exported to tab-delimited text file

Corrected Installation problem on Windows 3.1

Corrected plotting problem for soil guidelines

RESRAD-BUILD 2.36 (4/9/98):

Corrected problem with simultaneously changing number of wall regions and their parameters

Added OK button to uncertainty window

Made sure first uncertainty variable is added on first try

See the developer's web site for the latest information at http://www.ead.anl.gov/resrad



5. METHOD OF SOLUTION

RESRAD uses a pathway analysis method in which the relation between radionuclide concentrations in soil and the dose to a member of a critical population group is expressed as a pathway sum, which is the sum of products of "pathway factors." Pathway factors correspond to pathway segments connecting compartments in the environment between which radionuclides can be transported or radiation transmitted.

6. RESTRICTIONS OR LIMITATIONS

The groundwater pathway models apply only to situations for which the hydrological strata can reasonably be approximated by a sequence of uniform, horizontal strata.

7. TYPICAL RUNNING TIME

Less than one minute is generally required on 386, 486, or Pentium computers. The sample case required less than 5 seconds on a 486/66 MHZ PC.

8. COMPUTER HARDWARE REQUIREMENTS

The code runs on an IBM PC 386, 486, or Pentium compatibles with 3M bytes of free memory and a hard disk with 4 MB of storage space. Use of a math coprocessor is required.

9. COMPUTER SOFTWARE REQUIREMENTS

The Lahey F77L3/EM-32 and Microsoft Visual Basic compilers were used to create most RESRAD executables included in the package. The RESPLOT executable was created with Lahey and MicroGlyph SCIPLOT 5.0. The RESRAD and RESRAD-BUILD executables run under Windows 3.1, Windows95 and Windows NT 4.0. They do NOT run under DOS. Note that the source files are not included. RESRAD consists of three main programs: RESPC, RESMAIN, and RESPLOT. RESPC is a compiled Basic program that handles all user interaction with RESRAD; RESMAIN is the Fortran code that performs computations and generates output tables and graphics data files; and RESPLOT is a stand-alone Fortran system (Lahey F77L/EM32 5.2 and Micro Glyph SCIPLOT 5.0) that executes the computer graphics. Refer to Chapter 4 of ANL/EAD/LD-2 for installation information.

10. REFERENCES

a. Included in documentation:

C. Yu, A. J. Zielen, J. -J. Cheng, Y. C. Yuan, L. G. Jones, D. J. LePoire, Y. U. Wang, C. O. Loureiro, E. Gnanapragasam, E. Faillace, A. Wallo III, W. A. Williams, and H. Peterson, "Manual for Implementing Residual Radioactive Material Guidelines Using RESRAD, Version 5.0," ANL/EAD/LD-2 (September 1993).

C. Yu, C. Loureiro, J.-J. Cheng, L. G. Jones, Y. Y. Wang, Y. P. Chia, and E. Faillace, "Data Collection Handbook to Support Modeling the Impacts of Radioactive Material in Soil," ANL/EAIS-8 (April 1993).

C. Yu, D. J. LePoire, C.O. Loureiro, L.G. Jones, and S. Y. Chen, "RESRAD-BUILD: A Computer Model for Analyzing the Radiological Doses Resulting from the Remediation and Occupancy of Buildings Contaminated with Radioactive Material," ANL/EAD/LD-3 (November 1994).

b. Background references:

K. F. Eckerman, A. B. Wolbarst, and A. C. B. Richardson, "Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion," Federal Guidance Report No. 11, EPA-520/1-88-020 (September 1988).

K. F. Eckerman and J. C. Ryman, "External Exposure to Radionuclides in Air, Water, and Soil," Federal Guidance Report No. 12, EPA 402-R-93-081 (September 1993).

11. CONTENTS OF CODE PACKAGE

Included are the referenced documents in 10a. and 5 DS/HD 3.5-in. (1.44 MB) diskettes which include executables, data, test cases and batch files in self-extracting compressed DOS files.

12. DATE OF ABSTRACT

June 1990, July 1994, May 1995, August 1996, April 1997, June 1998.

KEYWORDS: ENVIRONMENTAL DOSE; GAMMA-RAY; INTERACTIVE; RADIONUCLIDES; RADIOACTIVITY RELEASE; RADIATION ENVIRONMENT; MICROCOMPUTER