CAFDATS: Converter of Angular Fluxes of DORT, ANISN and TORT Systems.

Developed by Mitsui Engineering and Shipbuilding Co., Ltd., Tokyo, Japan and contributed by the Institute of Nuclear Safety, NUPEC, Tokyo, Japan through the NEA Data Bank, Issy-les-Moulineaux, France.

Fortran; SUN or Linux PC (P00549MNYCP00).

CAFDATS is a converter of angular fluxes of the DORT, ANISN and TORT systems. It works similarly to the TORSED or TORSET program in the DOORS code systems, and is designed to calculate the boundary source for the ANISN and DORT codes from the calculated fluxes by the DORT or TORT code.

CAFDATS is designed to calculate the boundary source for the ANISN and DORT codes from the calculated fluxes by DORT or TORT. There are five sub-programs in the program package:

· TXTODR converts calculated fluxes in the Cartesian geometry (X, Y, Z) of TORT code to the boundary source in the cylindrical geometry (R, Z) of DORT code,

· TRTODR converts calculated fluxes in the cylindrical geometry (R, Theta, Z) of TORT code to the boundary source in the cylindrical geometry (R, Z) of DORT code,

· TRTOAR converts calculated fluxes in the cylindrical geometry (R, Theta, Z) of TORT code to the boundary source in the infinite cylindrical geometry (R) of ANISN code,

· TXTOAX converts calculated fluxes in the Cartesian geometry (X, Y, Z) by TORT code to the boundary source in the infinite plane geometry (X) of ANISN code,

· DRTODR converts calculated fluxes in the cylindrical geometry (R, Z) by DORT code to the boundary source in the cylindrical geometry (R, Z) of DORT code.

The angular fluxes for the boundary source of the secondary calculation are linearly interpolated from the nearest-neighbor angular fluxes in the angular and spatial meshes of the primary calculation.

There are some limitations on the dimensions of certain arrays, but these dimensions can be increased to meet user's requirements.

The estimated running time of the sample problem is 10 minutes on a SUN Work Station U60.

CAFDATS runs on computers running UNIX or Linux.

This package was compiled at RSICC on an AMD Opteron running Red Hat Enterprise Linux WS release 4 with PGF95 -V 6.1-6. Fortran source code is included and a compiler is required.

**10.a included in documentation:**

Daiichiro Ito and Susumu Mitake, *CAFDATS: Converter of
Angular Fluxes of DORT, ANISN and TORT Systems,* INS/CR-1238(M) Mitsui
Engineering and Shipbuilding (contractor) (December 2000).

Included in the package are documentation, Fortran source code, shell script and an executable for Sun Solaris on a single CD.

August 2012.

**KEYWORDS:** COMPLEX GEOMETRY, CYLINDRICAL GEOMETRY,
DISCRETE ORDINATES, GAMMA RAY, MULTIGROUP, NEUTRON, ONE-DIMENSION,
TWO-DIMENSIONALS