1. NAME AND TITLE

RABFIN, PARTS: Code System for Calculating Gaseous Effluent Dose Parameters.

2. CONTRIBUTOR

Nuclear Regulatory Commission, Washington D. C. through the Energy Science and Technology Software Center, Oak Ridge, Tennessee.

3. CODING LANGUAGE AND COMPUTER

FORTRAN IV; IBM PC (C00668/IBMPC/00).

4. NATURE OF PROBLEM SOLVED

RABFIN calculates technical specification dose parameters for the noble gas portion of gaseous effluents from nuclear power plants. Finite noble gas doses from short-term (purge) releases are calculated; the output includes the finite plume air, total body, and skin doses. Corresponding dose quantities computed assuming semi-infinite exposure geometry are also presented for comparison purposes. PARTS calculates technical specification dose parameters for the iodine and particulate portions of gaseous effluents.

5. METHOD OF SOLUTION

RABFIN employs the atmospheric dispersion models of the XOQDOQ (CCC-316) program and the dose integral routine of the U. S. Nuclear Regulatory Commission Regulatory Guide 1.109.

6. RESTRICTIONS OR LIMITATIONS

Maxima of 50 nuclides (PARTS), 20 nuclides (RABFIN), 14 wind speed classes (RABFIN), and 7 stability classes (RABFIN). No provision is included to evaluate simultaneously multiple releases, e.g., a continuous and purge release.

7. TYPICAL RUNNING TIME

NEADB executed the sample problems in 7 and 3 seconds, respectively, on a DELL Optiflex 560/L PC.

8. COMPUTER HARDWARE REQUIREMENTS

PC 486 or faster is recommended with 640 kb RAM and 1 Mb free disk space.

9. COMPUTER SOFTWARE REQUIREMENTS

For the PC version, DOS 6 or higher is recommended. Lahey F77-EM/32 V5.2 compiled executables are included in the package. These can be run in a DOS window of Windows95.

10. REFERENCES

a. Included in the package:

"README.txt"

J.S. Boegli, R.R. Bellamy, W.L. Britz, and R.L. Waterfield, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants," NUREG-0133 (October 1978).

K. F. Ekerman, "NRC Memorandum on RABFIN," without code listing (Oct 27, 1978).

b. Background Information:

U.S. Nuclear Regulatory Commission, Office of Standards Development, Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I," Revision 1, (October 1977).

11. CONTENTS OF CODE PACKAGE

Included are the reference documents in (10.a) and source, sample problems, and PC executables on one 3.5" DS/HD diskette written in a self-extracting compressed DOS file.

12. DATE OF ABSTRACT

May 1999.

KEYWORDS: AIRBORNE; INTERNAL DOSE; NUCLIDE TRANSPORT; RADIOLOGICAL SAFETY; WASTE MANAGEMENT