Computer Programs
NEA-0706 FISPIN.
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NEA-0706 FISPIN.

FISPIN, Isotope Buildup and Isotope Decay for Actinides, Fission Products, Structure Materials

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1. NAME OR DESIGNATION OF PROGRAM:  FISPIN.
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2. COMPUTERS
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Program name Package id Status Status date
FISPIN NEA-0706/01 Tested 17-MAR-1982

Machines used:

Package ID Orig. computer Test computer
NEA-0706/01 IBM 3033 IBM 3033
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3. DESCRIPTION OF PROBLEM OR FUNCTION

The production and removal of isotopes of three groups, the actinides, the fission products, and the structural materials.
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4. METHOD OF SOLUTION

The time-dependent equations are solved by use  of a modified form of the Taylor series expansion. For any time step isotopes of short half-life are considered to be in an equilibrium production-removal state.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Each data library is restricted to less than 1000 isotopes. Calculations are performed for a point, and no calculations of flux spectrum are performed.
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6. TYPICAL RUNNING TIME

Dependent on the size of the data library, and on the number of 'equilibrium' isotopes. Typically, for a linked actinide-fission product calculation, the running time is 3 seconds per burnup interval (on ICL 2980).
NEA-0706/01
NEA-DB ran the test case on IBM 3033 in 1 second.
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7. UNUSUAL FEATURES OF THE PROGRAM:
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8. RELATED AND AUXILIARY PROGRAMS

The cross sections in the data libraries are partly generated from more sophisticated codes such as WIMS.
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9. STATUS
Package ID Status date Status
NEA-0706/01 17-MAR-1982 Tested at NEADB
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10. REFERENCES:
NEA-0706/01, included references:
- R.F. Burstall:
  FISPIN - A Computer Code for Nuclide Inventory Calculations
  ND-R-328(R) (October 1979)
- A.M. Fletcher and B.J. Tymons:
  A Users Guide to the FISPIN Interrogation Facility.
  DOE/RW/85.040  (March 1985)
- R.F. Burstall and D.A.J. Endacott:
  User Input for the FISPIN Code
  AERE M 3508  (October 1985)
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11. MACHINE REQUIREMENTS:  Main storage 580 kbytes on IBM 3033.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0706/01 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
VME/B Version 5 x 17 (ICL 2980). OS370/033 (IBM 3033).
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHOR

          R. F. Burstall
          Central Technical Services
          Risley Nuclear Power Development Establishment
          Risley, Warrington WA3 6AT
          United Kingdom
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16. MATERIAL AVAILABLE
NEA-0706/01
File name File description Records
NEA0706_01.002 FISPIN INFORMATION 118
NEA0706_01.003 FISPIN SOURCE FORTRAN-4 CARD IMAGES 4403
NEA0706_01.004 RISLEY SUBROUTINES FORTRAN-4 1780
NEA0706_01.005 RISLEY SUBROUTINES ASSEMBLER 614
NEA0706_01.006 FISPIN INPUT FOR TEST CASE 81
NEA0706_01.007 FISPIN OUTPUT OF TEST CASE 194
NEA0706_01.008 FISPIN JCL FOR TEST CASE EXECUTION 84
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17. CATEGORIES
  • D. Depletion, Fuel Management, Cost Analysis, and Power Plant Economics

Keywords: actinides, fission products, isotope production, isotopes.