IAEA1362 GCASCAD.

GCASCAD, Gamma Production Cross Sections Statistical Model

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, METHODS, RESTRICTIONS, CPU, UNUSUAL FEATURES, AUXILIARIES, STATUS, REFERENCES, HARDWARE REQUIREMENTS, LANGUAGE, SOFTWARE REQUIREMENTS, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: GCASCAD.

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2. COMPUTERS

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Program name	Package id	Status	Status date
GCASCAD	IAEA1362/01	Tested	12-MAR-1999

Machines used:

Package ID	Orig. computer	Test computer
IAEA1362/01	IBM PC	PC Pentium II 400

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3. DESCRIPTION OF PROGRAM OR FUNCTION

GCASCAD is designed to calculate, using the statistical model, the gamma-ray branching ratios and the photon production cross sections. The gamma-ray transmission coefficients are calculated using one of several possible forms for gamma-ray strength functions: Brink-Axel giant dipole model, Kopecky-Uhl generalized Lorentzian model, Weisskopf single-particle model. In the continuum part of level spectrum the level density is treated with the Gilbert-Cameron composite formula.

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4. METHODS

The integrals in the continuum part of level spectrum are computed using the Gauss method (with 12 quadratures).

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

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6. TYPICAL RUNNING TIME

IAEA1362/01

A few seconds for each case.

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7. UNUSUAL FEATURES

The two versions use the same input files and produce identical output files.

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8. RELATED OR AUXILIARY PROGRAMS

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9. STATUS

Package ID	Status date	Status
IAEA1362/01	12-MAR-1999	Tested at NEADB

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10. REFERENCES

- Brink, D.M.:
  Nuclear Physics 4 (1957), p. 215
- Axel, P.:
  Physics Review, 126 (1962), p. 671
- Kopecky, J., Uhl, M.:
  Physics Review, C42 (1990). p. 1941
- Kopecky, J., Uhl, M.:
  Report ECN-RX-90-024 (1990)
- Young, P.G., Arthur, E.D., Chadwick, M.B.:
  GNASK-FKK RSICC PSR-125 (1998)
- Tudora, A.:
  Evaluation of 242-Pu data in the incident neutron energy range 5 - 20 MeV.
  NEA Report (1998)

IAEA1362/01, included references:

- Tudora, A:
Description of GCASCAD Code/Description du Code GCASCAD. (1998)

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11. HARDWARE REQUIREMENTS: IBM-PC.

IAEA1362/01

File storage is less than 1Mbyte.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
IAEA1362/01	FORTRAN-77, BASIC

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13. SOFTWARE REQUIREMENTS: MS-DOS and Fortran-Lahey system respectively.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

There are two versions of GCASCAD code, one in FORTRAN-77 language and the other in QUICK-BASIC language, both of them using the same flow chard and variables names.
The QBasic version of the code is static dimensioned but the space allocated to an array, if it has been declared $DYNAMIC, can be changed using the declaration statement REDIM.

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15. NAME AND ESTABLISHMENT OF AUTHORS

             Anabella TUDORA
             Bucharest University
             Faculty of Physics
             Department of Nuclear Physics
             Bucharest-Magurele, R-76900
             RUMANIA

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16. MATERIAL AVAILABLE

IAEA1362/01

PROGABS.TXT Program Abstract
GCASCAD.FOR FORTRAN source code
GCASCAD.EXE FORTRAN executable file
GCASCAD.BAS Main code module, QBASIC
GAMCONT1.BAS GAMCONT1 module, QBASIC
GAMNORM1.BAS GAMNORM1 module, QBASIC
GCASCAD.MAK Link file, QBASIC
INPUT0 Example test (Pu-242 gamma production), input file unit 5
INPUT1 Example test (Pu-242 gamma production), input file unit 4
INPUT2 Example test (Pu-242 gamma production), input file unit 9
OUTPUT1A Case A Output file unit 6, FORTRAN
OUTPUT2A Case A Output file unit 8, FORTRAN
QOUT1A Case A Output file unit 6, QBasic
QOUT2A Case A Output file unit 8, QBasic
OUTPUT1B Case B Output file unit 6, FORTRAN
OUTPUT2B Case B Output file unit 8, FORTRAN
QOUT1B Case B Output file unit 6, QBasic
QOUT2B Case B Output file unit 8, QBasic
OUTPUT1C Case C Output file unit 6, FORTRAN
OUTPUT2C Case C Output file unit 8, FORTRAN
QOUT1C Case C Output file unit 6, QBasic
QOUT2C Case C Output file unit 8, QBasic
GCASF.DOC Code description in French
GCASE.DOC Code description in English
README.TXT Code contents

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17. CATEGORIES

A. Cross Section and Resonance Integral Calculations

Keywords: cross sections, gamma radiation, nuclear models.