1. NAME AND TITLE
FLUKA-TRANKA: Three-Dimensional High-Energy Extranuclear Hadron Cascade Monte
Carlo System for Cylindrical Backstop Geometries.
CASCA: Core of Cascade Calculator (Cylindrical Geometries).
Radiation Group, European Organization for Nuclear Research (CERN), Geneva, Switzerland.
3. CODING LANGUAGE AND COMPUTER
FORTRAN IV; CDC 6600.
4. NATURE OF PROBLEM SOLVED
The hadron cascade codes, FLUKA and TRANKA, were designed to simulate high-energy
nucleon-meson cascades in cylindrical geometries. They are applicable to both solid and hollow
5. METHOD OF SOLUTION
Monte Carlo techniques are used, and all particle-production data are obtained from empirical
fits to experimental data. TRANKA and FLUKA differ in their treatment of energy conservation in
collisions. In TRANKA, energy is not conserved in an individual collision but only when averaged
over a large number of collisions. In FLUKA, energy is conserved at each collision. TRANKA
utilizes variance-reduction techniques and is, therefore, applicable to deep-penetration studies.
6. RESTRICTIONS OR LIMITATIONS
Only particles above 50 MeV are transported, and, therefore, no detailed information can be
obtained about the lower energy particles produced in the cascade.
7. TYPICAL RUNNING TIME
No study has been made by RSIC of typical running times for FLUKA-TRANKA.
8. COMPUTER HARDWARE REQUIREMENTS
FLUKA-TRANKA is operable on a CDC 6600 computer.
9. COMPUTER SOFTWARE REQUIREMENTS
A FORTRAN IV compiler is required.
J. Ranft and J. T. Routti, "FLUKA and MAGKA, Monte Carlo Programs for Calculating Nucleon-Meson Cascades in Cylindrical Geometries," CERN LABII-RA/71-4 (November 1971).
J. Renft and J. T. Routti, "Simulation of Deep Penetration Hadron Cascades, Description of
Program TRANKA," CERN LABII-RA/72-4 (April 1972).
11. CONTENTS OF CODE PACKAGE
Included are the referenced documents and one (1.2MB) DOS diskette which contains the
source code and sample problem input and output.
12. DATE OF ABSTRACT
KEYWORDS: HADRON; MONTE CARLO; HIGH ENERGY; EXTRANUCLEAR CASCADE; CYLINDRICAL GEOMETRY; MESON; NUCLEON