NEA-0540 MODESTY.

MODESTY, Statistical Reaction Cross-Sections and Particle Spectra in Decay Chain

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, AUXILIARIES, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: MODESTY.

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2. COMPUTERS

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Program name	Package id	Status	Status date
MODESTY	NEA-0540/01	Tested	01-FEB-1977

Machines used:

Package ID	Orig. computer	Test computer
NEA-0540/01	IBM 370 series	IBM 370 series

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Code MODESTY calculates all energetically possible reaction cross sections and particle spectra within a nuclear decay chain.

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4. METHOD OF SOLUTION

It is based on the statistical nuclear model following the method of Uhl (reference 1) where the optical model is used in the calculation of partial widths and the Blatt-Weisskopf single particle model for gamma rays.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

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6. TYPICAL RUNNING TIME

The calculation of the decay chain of Mn56 at 10 MeV takes 11 minutes on an IBM 370/165.

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7. UNUSUAL FEATURES OF THE PROGRAM

The program is designed in the 'modular' concept in that all necessary nuclear data are automatically searched for from an external library of fundamental data.

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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS

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9. STATUS

Package ID	Status date	Status
NEA-0540/01	01-FEB-1977	Tested at NEADB

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10. REFERENCES: REFERENCES:
- M.Uhl:, ACTA Physics Austriaca 31,245(1970).

NEA-0540/01, included references:

- W. Matthes:
MODESTY: Calculation of Nuclear Reaction Cross Section
with the Statistical Model, User's Manual
Report No.10, January 1977

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11. MACHINE REQUIREMENTS: 150k fast memory, 6 work files on disc are needed.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0540/01	PL/I

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: IBM/OS 370 - MVT.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

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15. NAME AND ESTABLISHMENT OF AUTHOR

      W. Mattes
      Joint Research Center
      EURATOM
      I-21020 CCR EURATOM-Ispra Italy

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16. MATERIAL AVAILABLE

NEA-0540/01

File name	File description	Records
NEA0540_01.001	SOURCE PL/I EBCDIC	1801
NEA0540_01.002	LIBRARY FOR TEST CASE	439
NEA0540_01.003	TEST CASE INPUT DATA	5
NEA0540_01.004	TEST CASE PRINTED OUTPUT	2457
NEA0540_01.005	JCL FOR TEST CASE	60

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17. CATEGORIES

A. Cross Section and Resonance Integral Calculations

Keywords: cross sections, decay, gamma radiation, optical models, spectra.