1. NAME AND TITLE
SMART/MANYCASK: A Program for Calculating Radiation Dose Rates.
Ship Research Institute, Nuclear Ship Division, Tokyo, Japan.
3. CODING LANGUAGE AND COMPUTER
Fortran IV, Fortran 77; FACOM-M180.
4. NATURE OF PROBLEM SOLVED
SMART calculates radiation dose rate at the center of the outer cask surface. It can be applied to determine the radiation dose rate on each cask if source conditions, characteristic function, and material conditions in the bottle regions are given.
MANYCASK calculates radiation dose rate distribution in a space surrounded by many casks. If
the dose rate on each cask surface can be measured, MANYCASK can be applied to predict dose
spatial dose rate distribution for any case of cask configuration.
5. METHOD OF SOLUTION
SMART calculates the inner products of two vectors. One describes the energy spectrum of "effective" radiation current incident on the inner cask surface as a result of loading spent fuels in the bottle region. The other, named "characteristic function for shielding ability," describes the incident energy dependence of the dose rate response for those radiations which are transmitted through the cask wall.
MANYCASK calculates in terms of radiation dose rate at the center of each cask surface as well
as three dimensional relative coordinates between each cask and the detector position and the geometry
of each cask.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
No study has been made by RSIC of typical running times for SMART/MANYCASK.
8. COMPUTER HARDWARE REQUIREMENTS
SMART/MANYCASE is operable on the FACOM-M180.
9. COMPUTER SOFTWARE REQUIREMENTS
A Fortran IV and Fortran 77 compiler are required.
H. Yamakoshi, "Concept of Shielding Characteristics for Spent Fuel Shipping Casks," Nucl. Sci. and Eng., 87, 152-180 (1984).
H. Yamakoshi, "A Simple Expression for Radiation Dose Rate Distributions Around a Cylindrical
Shell Source with a Finite Height," Nucl. Sci. and Eng., 88, 110-122 (1984).
11. CONTENTS OF CODE PACKAGE
Included are the referenced documents and one (1.2MB) DOS diskette which includes the source
codes and sample problem input.
12. DATE OF ABSTRACT
KEYWORD: SHIPPING CASK DESIGN