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IAEA1404 CHAINSOLVER 2.20.

CHAINSOLVER 2.20, transmutation simulation of samples during irradiation in nuclear reactors

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1. NAME OR DESIGNATION OF PROGRAM:  CHAINSOLVER 2.20.
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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.

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Machines used:

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3. DESCRIPTION OF PROGRAM OR FUNCTION

ChainSolver is designed for carrying out fast transmutation simulations of samples during irradiation in nuclear reactors. The code calculates a nuclide density time evolution with  burnup, decay and buildup. The depression of a thermal neutrons flux, resonance self-shielding of isotopes  during an irradiation, and the irradiation schedule (the schedule of the reactor work and rearrangement of an irradiated target in various positions) are taken into account. Such calculations allow to define the chosen mode of an irradiation and to calculate the expected outputs for both products and inevitable impurities. The  main approximation used at calculation of transmutations is the assumption that the influence of changes in  the irradiated material structure on characteristics of a reactor as a neutron source is insignificant. Resonance self-shielding factors are calculated in Intermediate Resonance approximation.
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4. METHODS

ODE solvers available under GNU GENERAL PUBLIC LICENSE (VODE, LSODA, RADAU, MEBDF).
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
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6. TYPICAL RUNNING TIME:  Depends on the problem complexity and PC speed.
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7. UNUSUAL FEATURES

When the program runs from read-only directory (without TEMP Windows environment variable set to directory with write access) some solver subroutines (DLL ones) are unavailable. This is due to the main program and DLLs communicate thought disk files (for the code robustness).
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8. RELATED OR AUXILIARY PROGRAMS:  NKE (IAEA1384) and CHAINFINDER (IAEA1405).
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9. STATUS

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10. REFERENCES

- Byrne, G.D. and A. C. Hindmarsh:
"Stiff ODE Solvers: A Review of Current and Coming Attractions," J. Comp. Phys. 70 (1987), pp. 1-62. Also available as Lawrence Livermore National Laboratory technical report UCRL-94297, March 1986,
Internet: http://www.llnl.gov/CASC/nsde/pubs/200849.pdf
  
- A. C. Hindmarsh:
"ODEPACK, a Systematized Collection of ODE Solvers," in Scientific Computing, R. S. Stepleman et al edition, North-Holland, Amsterdam, 1983, pp. 55-64.
Internet: http://www.netlib.org/odepack/index.html
  
- Linda R. Petzold:
Automatic Selection of Methods for Solving Stiff and Nonstiff Systems of Ordinary Differential Equations, SIAM (Society for Industrial and Applied Mathematics) J. Sci. Stat. Somput. 4 (1983), pp. 136-148.
  
- P. N. Brown, G. D. Byrne and A. C. Hindmarsh:
"VODE: A Variable Coefficient ODE Solver," SIAM J. Sci. Stat. Comput., 10 (1989), pp. 1038-1051, Report of Lawrence Livermore National Laboratory: LLNL Report UCRL -98412, June 1988,
Internet http://www.llnl.gov/CASC/nsde/pubs/207532.pdf
  
- E. Hairer and G. Wanner:
Solving Ordinary Differential Equations II. Stiff and Differential-Algebraic Problems. Springer Series in Comput. Mathematics, Vol. 14, Springer-Verlag 1991, Second revised edition 1996.
  
- J. R. Cash, S. Considine:
An MEBDF Code for Stiff Initial Value Problems, ACM (Association for Computing Machinery) Trans. Math. Software, pp.142-158,1992
  
- Walter M. Lioen and Jacques J.B. de Swart:
Test Set for Initial Value Problem Solvers, Release 2.1 September 1999,
Internet, http://www.cwi.nl/cwi/projects/IVPtestset/.
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11. HARDWARE REQUIREMENTS

ChainSolver is now a Win 32 application. A mouse is highly recommended.
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12. PROGRAMMING LANGUAGE(S) USED

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13. SOFTWARE REQUIREMENTS

MS Windows.
Borland Delphi (TM) Object Pascal,  Fortran compiler (from GCC - GNU compiler collection) MinGW port for Windows.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHORS

E.G.Romanov
Radioisotopes production laboratory of
State Scientific Center of Russian Federation "Research Institute of Atomic Reactors"
Division of Radionuclide Sources and Preparations
  Contact address.
       E-mail: orip@niiar.ru for Evgeny G Romanov
       Regular mail: ORIP RIAR,
                     Dimitrovgrad-10,
                     Ulyanovsk region,
                     433510 Russia
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16. MATERIAL AVAILABLE
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17. CATEGORIES

Keywords: activation, buildup, burnup, decay, fission, isotopes, neutron cross sections, resonance integrals, thermal neutrons, thermal spectra, transmutation.