last modified: 04-APR-1984 | catalog | categories | new | search |

NEA-0169 PROCOPE.

PROCOPE, Collision Probability in Pin Clusters and Infinite Rod Lattices

top ]
1. NAME OR DESIGNATION OF PROGRAM:  PROCOPE.
top ]
2. COMPUTERS
To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.
Program name Package id Status Status date
PROCOPE NEA-0169/01 Tested 01-AUG-1969

Machines used:

Package ID Orig. computer Test computer
NEA-0169/01 IBM 360 series IBM 360 series
top ]
3. NATURE OF PHYSICAL PROBLEM SOLVED

Calculation of directional collision probabilities in pin clusters and infinite rod lattices.
top ]
4. METHOD OF SOLUTION

a) Gauss integration of analytical expressions for collision probabilities.
b) alternately, an approximate closed expression (not involving integrals) may be used for pin-to-pin interactions.
top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

   number of fuel pins must be smaller than 62.
   maximum number of groups of symmetry is 300.
top ]
6. TYPICAL RUNNING TIME

a) A complete calculation for a 7 rod cluster requires around  5 minutes with the exact method, 2 minutes for the approximate    technique.
b) For lattice problems, the running time is very sensitive to  cross section input data, the approximate technique is always    much faster than the exact method typically 30 sec. vs. 30 min.
top ]
7. UNUSUAL FEATURES OF THE PROGRAM

The programme evaluates the directional collision probabilities (radial and axial) in two dimensional geometry.
top ]
8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
top ]
9. STATUS
Package ID Status date Status
NEA-0169/01 01-AUG-1969 Tested at NEADB
top ]
10. REFERENCES

- L. Amyot and P. Benoist:
  First Flight Collision Probabilities in Pin Clusters and Rod
Lattices
  Nuclear Science and Engineering, 28,215-225 (1967)
NEA-0169/01, included references:
- L. Amyot and P. Benoist:
  First Flight Collision Probabilities in Pin Clusters and Rod
  Latices
  EUR 2751.e (1966)
- C. Daolio:
  PROCOPE - A Code to Evaluate Collision Probabilities in Pin
  Clusters and Infinite Rod Lattices
  EUR 3296.e (1967)
top ]
11. MACHINE REQUIREMENTS:  8 magnetic tapes divided into 2 channels.
top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0169/01 FORTRAN-IV
top ]
13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED:  FORTRAN monitor 7090 system.
top ]
14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
top ]
15. NAME AND ESTABLISHMENT OF AUTHOR

       L. Amyot, C. Daolio
       Commission des Communautes Europeennes
       21020 - Ispra
       Italy
       P. Benoist
       CEA - Saclay
top ]
16. MATERIAL AVAILABLE
NEA-0169/01
File name File description Records
NEA0169_01.001 SOURCE & DATA 360/65 3447
NEA0169_01.002 OUTPUT 536
top ]
17. CATEGORIES
  • B. Spectrum Calculations, Generation of Group Constants and Cell Problems

Keywords: Gauss function, collisions, fuel element clusters, probability, reactor lattices.