1. NAME AND TITLE
TREEDE: Monte Carlo Neutron Transport Code System Based on the Track Rotation Estimator.
Physics Department, Ben Gurion University of the Negev, Beersheva, Israel.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; CDC.
4. NATURE OF PROBLEM SOLVED
TREEDE calculates flux at a point due to a point source. Each particle's track crossing a sphere whose radius equals the source to detector distance is rotated such that the rotated track passes through the detector point and a score is made for the flux at the point. Compensating weights are applied depending on the relation between the original and rotated random walks.
5. METHOD OF SOLUTION
The Monte Carlo method based on the concept of the track rotation estimator is used.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The time required for processing 2 × 105 source particles on the CDC 7600 for a finite slab of dimensions:
is 140 seconds.
8. COMPUTER HARDWARE REQUIREMENTS
A CDC computer is required.
9. COMPUTER SOFTWARE REQUIREMENTS
A Fortran IV compiler is required.
"TREEDE Users' Guide" (Informal Report).
A. Dubi, Y. S. Horowitz, and H. Rief, "Calculation of the Total Flux at a Point by the Monte Carlo Track Rotation Estimator," Informal Paper.
"Flow Chart for the Tracking of a Particle in the Program 'TREEDE'".
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (1.2MB) DOS diskette which contains the source code.
12. DATE OF ABSTRACT
November 1978; revised February 1983.
KEYWORDS: MONTE CARLO; SLAB; NEUTRON