1. NAME AND TITLE
QUINCE: Calculates Absorbed Dose From Skin Contamination.
Union Electric Company, St. Louis, Missouri.
3. CODING LANGUAGE AND COMPUTER
Fortran 77; IBM PC.
4. NATURE OF PROBLEM SOLVED
The program QUINCE is an enhanced version of the VARSKIN code (CCC-522) which computes
absorbed dose and survival from a disc or point source on the skin surface, irradiating cells at the base
of the skin.
5. METHOD OF SOLUTION
VARSKIN assumes that the dose from the last point of integration was close to zero and any
remaining dose from that point was negligible. QUINCE was modified to add the dose from the last
integration point out to the maximum range based on a straight line extrapolation to zero. QUINCE
provides a smooth integral function by which the integrated dose is obtained, as opposed to the step
function method in VARSKIN. QUINCE allows dose calculation for mixtures of up to 5 isotopes
whereas VARSKIN requires separate runs for each isotope in the mixture. QUINCE prints dose
averaged over a 1 square centimeter area and the new area that is selected.
6. RESTRICTIONS OR LIMITATIONS
QUINCE allows mixtures of up to 5 isotopes.
7. TYPICAL RUNNING TIME
The code is interactive. The sample input took only a few seconds on an IBM PC/XT
(4.7 megahertz) running under DOS 3.3. with a math co-processor.
8. COMPUTER HARDWARE REQUIREMENTS
IBM PC and compatibles. A math coprocessor is not required.
9. COMPUTER SOFTWARE REQUIREMENTS
The code was written in Fortran 77 and tested under PC-DOS (IBM PC). An executable file
produced by the MICROSOFT Fortran Version 4.01 is included.
M. C. Williams, "Validation, Verification and Use of the Computer Software Program QUINCE for Skin Dose Calculation," informal document (1990).
M. C. Williams, "A Method For Adding Nuclides to VARSKIN and QUINCE Skin Dose
Calculation Software," pp. 2534 in Radiation Protection Management, Vol. 4, No. 6 (Nov./Dec.
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (360 K) DOS diskette.
12. DATE OF ABSTRACT
KEYWORDS: BETA-RAY, RADIOACTIVITY, ENERGY DEPOSITION, INTERACTIVE, MICROCOMPUTER