RSICC CODE PACKAGE CCC-684

 

1.  NAME AND TITLE

NRCDose 2.3.10:     Code System for Evaluating Routine Radioactive Effluents from Nuclear Power Plants with Windows Interface.

 

2.  CONTRIBUTOR

Chesapeake Nuclear Services, Inc., Annapolis, Maryland.

 

3.  CODING LANGUAGE AND COMPUTER

Fortran and Visual Basic; Pentium (C000684PC58608).

 

4.  NATURE OF PROBLEM SOLVED

NRCDose is a user-friendly 32-bit PC-based, software interface for the LADTAP II, GASPAR II, and XOQDOQ programs which operates under all Microsoft WindowsTM platforms. LADTAP II, GASPAR II, and XOQDOQ are industry standards, originally created for mainframe computers and written using the FORTRAN programming language. While still utilizing the proven FORTRAN code modules, NRCDose allows the user to enter and retrieve data through a series of windows dialogs, making the use of the program much more user-friendly and efficient than its original design. This graphical interface also allows the user to create sets of data that can be named and retrieved at a later date for review or modification.

Recent modifications in NRCDose include:

§         BLOCK data functionality in LADTAP module was not working correctly - it has been repaired. (v2.3.7)

§         LADTAP - Additional Usage Locations for ALARA Analysis - locations were being replicated inadvertently. This has been corrected. (v2.3.8)

§         XOQDOQ - Corrected direction labels on the Wind Speed Values dialog. (v2.3.9)

§         BLOCK data functionality in GASPAR module was not working correctly - the GASPAR.FOR code file was corrected and recompiled. (v2.3.10)

 

5.  METHOD OF SOLUTION

The methods used for LADTAP and GASPAR are those presented in Regulatory Guide 1.109, Rev. 1.  XOQDOQ methods are based on Regulatory guide 1.111, Rev. 1 and as further described in NUREG/CR-2919. 

 

6.  RESTRICTIONS OR LIMITATIONS

The modeling of the LADTAP and GASPAR codes based on Regulatory Guide 1.109 are for routine, normal effluents under annual average environmental conditions.  Likewise, the XOQDOQ methods are for assessing average meteorological dispersion conditions.  NRCDose should not be used for evaluating short term releases where assumptions concerning equilibrium environmental conditions may not be applicable.  It should not be used for accident dose assessment.

 

7.  TYPICAL RUNNING TIME

Typical runtime should not exceed 5 to 10 seconds. 

 

8.  COMPUTER HARDWARE REQUIREMENTS

NRCDose runs on Pentium computers under the Windows operating system.

 

9.  COMPUTER SOFTWARE REQUIREMENTS

Microsoft Fortran Powerstation 4.0 was used to compile Fortran modules, and Microsoft Visual Basic 6.0 was used to compile Visual Basic module to create the distributed Windows executables. The codes were tested under Windows XP and Windows Vista. Source files are not included, so the codes can be run only on personal computers running Windows.

 

10. REFERENCES (References are in electronic format in file C684.PDF on the distribution CD.)

J. S. Bland and V. Malafeew, “NRCDose for Windows, User’s Guide,” (May 12, 2006).

D. L. Strenge, T. J. Bander and J. K. Soldat, “GASPAR II Technical Reference and User Guide,” NUREG/CR‑4653, PNL‑5907 (March 1987).

D. L. Strenge, R. A. Peloquin and G. Whelan, “LADTAP II - Technical Reference and User Guide,” NUREG/CR-4013, PNL-5270 (April 1986).

D. B. Simpson and B. L. McGill, “User's Manual for LADTAP II A Computer Program for Calculating Radiation Exposure to Man from Routine Release of Nuclear Reactor Liquid Effluents,” NUREG/CR‑1276, ORNL/NUREG/TDMC‑1 (March 17, 1980). [Includes 10 CFR Part 50, Appendix I, NRC Regulatory Guide 1.109, Rev. 1 (October 1977) and NRC Regulatory Guide 1.113, Rev. 1 (April 1977).]

J. F. Sagendorf, J. T. Goll, and W. F. Sandusky, “XOQDOQ Computer Program for the Meteorological Evaluation of Routine Effluent Releases at Nuclear Power Stations,” NUREG/CR‑2919 (PNL‑4380) (September 1982).

 

11. CONTENTS OF CODE PACKAGE

Included in the package is a CD written in Windows format which includes an installation procedure, PC executables, data files, test case input and output, and documents listed above in Section 10.

 

12. DATE OF ABSTRACT

January 2001, revised May 2001, Sept. 2001, Sept. 2002, January 2005, February 2006, June 2006, September 2007, February 2008.

 

KEYWORDS:   AIRBORNE; ENVIRONMENTAL DOSE; GAUSSIAN PLUME MODEL; NUCLIDE TRANSPORT; RADIATION ENVIRONMENT; RADIOLOGICAL SAFETY; RADIOACTIVITY RELEASE