NEA-1523 BOXER.

1. NAME OR DESIGNATION OF PROGRAM:  BOXER.

3. DESCRIPTION OF PROGRAM OR FUNCTION

Neutron transport, calculation  of multiplication factor and neutron fluxes in 2-D configurations: cell calculations, 2-D diffusion and transport, and burnup.

4. METHOD OF SOLUTION

Resonance treatment: pointwise calculation of flux in 2 zones in the resonance range, and interpolation in tables  out of this range.
Cell calculation: integral transport method.
2-D x-y: diffusion or transport (quadruple P1).
Burnup: coupling of nuclides through matrices, development of nuclide densities as polynomials of the time.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Cells: cylindrical or slabs.
2-D: only x-y meshes, with homogenised cells.

6. TYPICAL RUNNING TIME

On a SUN SPARC station 5: UO2 cell calculation without burnup: 8 sec.
Full burnup calculation of a BWR fuel assembly with gadolinium rods: 6000 sec for 37 time points.

The test cases included in this package were executed at the NEA Data Bank. The following execution times were found: one hour for the bwrtimi (longest) case (on a sun4m); and 15 seconds for the trxli (shortest) case (on a sun 4u).

7. UNUSUAL FEATURES OF THE PROGRAM

All the variables, including the integers, must be represented in 64 bit words.

8. RELATED AND AUXILIARY PROGRAMS

BOXER is the lattice code of the ELCOS system for the quasistationary modeling of LWR. Some subroutines are stored on the subroutine library LWRLIB. BOXER uses  the cross sections from the cross section library BOXRAN prepared by the code ETOBOX.

10. REFERENCES

- J.M. Paratte:
  Validation de la methode de calcul ETOBOX/BOXER pour les reseaux
  LWR a UO2 sur la base des experiences TXR, BAPL-UO2 et d'autres
  experiences critiques
  EIR-BERICHT Nr. 556 (Juli 1985)

- J.M. Paratte et al.:
  ELCOS The PSI Code System for LWR Core Analysis
  Part II: User's Manual for the Fuel Assembly Code BOXER
  PSI-Bericht Nr. 96-08 (Februar 1996) ISSN 1019-0643
- J.M. Paratte:
Validation de la Methode de calcul ETOBOX/BOXER pour les reseaux
LWR a UO2 sur la base des experiences TRX, BAPL-UO2 et d'autres
experiences critiques
EIR-Berich Nr.556 (July 1985)

11. MACHINE REQUIREMENTS:  The core memory should not be less than about 16 Mbytes.

The test installation at he NEA Data Bank was done on SUN SPARC Stations sun4u and sun4m.

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:  On CYBER: NOS/VE. On SUN: SOLARIS.

The tests at the NEA Data Bank were performed under the unix systems Solaris 2.0 (SunOS 5.5.1); SunOS 5.3; and SunOS 5.3. The source codes were compiled with the SUN f77 compiler.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Before
compiling BOXER, the recommendations given in Appendix A.2 (page A.9) of the BOXER user's manual (PSI Bericht 96-08) should be taken  into consideration.

15. NAME AND ESTABLISHMENT OF AUTHORS

         J.M. Paratte and P. Grimm
         Paul Scherrer Institute (PSI)
         CH-5232 Villigen PSI
         Switzerland

source program   mag tapeboxer.sou Source deck                      SRCTP
test-case data   mag tapetrx1i Two critical cells (input file)      DATTP
test-case output mag tapetrx1o Output file                          OUTTP
test-case data   mag tapeyankeei Burnup calc. of a PWR cell (input) DATTP
test-case output mag tapeyankeeo Output file                        OUTTP
test-case data   mag tapegadoli Simple twodimensional config.(input)DATTP
test-case output mag tapegadolo Output file                         OUTTP
test-case data   mag tapebwrtimi Burnup calc. of a BWR fuel assemblyDATTP
test-case output mag tapebwrtimo Output file                        OUTTP
bin data lib     mag tapeLIBBCD.Z Compressed BOXER library          LBBTP
report                   PSI-Bericht Nr. 96-08 (February 1996)      REPPT