RSICC CODE PACKAGE CCC-553

 

1.   NAME AND TITLE

RASCAL 3.0.5:  Radiological ASsessment for Consequence AnaLysis for Windows.

RASCAL Enriched U Problem Announcement

 

2.   CONTRIBUTORS

Athey Consulting, Charles Town, West Virginia,

Nuclear Regulatory Commission, Washington, D.C.

Pacific Northwest Laboratories, Richland, Washington.

 

3.   CODING LANGUAGE AND COMPUTER

Fortran 77, Visual Basic and Fortran; Pentium running Windows XP (C00553PC58607).

 

4.   NATURE OF PROBLEM SOLVED

      RASCAL, Version 3.0.5 (December 2006 release), is the latest in the series of the Radiological Assessment System for Consequence Analysis codes. It was developed for the U.S. Nuclear Regulatory Commission and is designed to be used in the independent assessment of dose projections during response to radiological emergencies. The system supplements assessments based on plant conditions and quick estimates based on hand-calculational methods. RASCAL will be used by response personnel to conduct an independent evaluation of dose and consequence projections and for training and drills. The model was developed to allow consideration of the dominant aspects of source term, transport, dose, and consequences. Source term calculations in RASCAL estimate the amount of radioactive (or hazardous) material released based on a wide variety of potential radiological accident scenarios. The source term calculations performed that pertain to fuel-cycle facility and materials accidents can be generally categorized as (1) fuel-cycle facility/UF accidents, (2) uranium fires and explosions, (3) criticality accidents, and (4) isotopic releases (e.g., transportation, materials).

 

5.   METHOD OF SOLUTION

RASCAL computes power reactor source terms, airborne transport of activity (through both Gaussian plume and puff models), and the resulting doses. The results allow easy comparison to EPA protective action guidelines.

 

6.   RESTRICTIONS OR LIMITATIONS


Because RASCAL is designed to be used during a radiological emergency, it is assumed that the amount of activity being released (the source term) and the meteorological conditions will not be precisely known. The doses computed for RASCAL are, therefore, assumed to be rough estimates.

 

7.   TYPICAL RUNNING TIME

Run times vary.

 

8.   COMPUTER HARDWARE REQUIREMENTS

RASCAL runs on personal computers.

 

9.   COMPUTER SOFTWARE REQUIREMENTS

RASCAL is a Windows application. The software was developed under Windows XP and is not fully functional under Windows Vista. Executables included in the package were created using Microsoft Visual Basic 6 and Compaq Visual Fortran 6.6 compilers. No source files are distributed.

 

10.  REFERENCES

S. A. Mcguire, J. V. Ramsdell, Jr., and G. F. Athey, gRASCAL 3.5 Description of Models and Methods,h NUREG-1887 Draft (June 2007).

G. F. Athey, S. A. Mcguire, J. V. Ramsdell, Jr., gRASCAL 3.0.5 Workbookh (June 4, 2007).

 

11.  CONTENTS OF CODE PACKAGE

Included are the referenced documents and one CD which includes executables, data, help files, and an install procedure. Source files are not included in this release.

 

12.  DATE OF ABSTRACT

March 1993, revised May 1995, Aug. 1997, Nov. 1998, July 2001, June 2002, July 2007.

 

KEYWORDS:   AIRBORNE; GAUSSIAN PLUME MODEL; INTERNAL DOSE; MICROCOMPUTER; NUCLIDE TRANSPORT; RADIOACTIVI­TY RELEASE; RADIOLOGICAL SAFETY; REACTOR ACCI­DENT