NEA-0630 ETOI.

ETOI, Format Conversion of Resonance Parameter from ENDF/B to Program IRESINT-3 Library

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: ETOI.

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2. COMPUTERS

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Program name	Package id	Status	Status date
ETOI	NEA-0630/01	Tested	01-NOV-1979

Machines used:

Package ID	Orig. computer	Test computer
NEA-0630/01	UNIVAC 1110	UNIVAC 1110

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3. DESCRIPTION OF PROBLEM OR FUNCTION

ETOI is a data program which converts resonance parameters from the ENDF/B library into the resonance parameter library of the code IRESINT-3 which computes resonance integrals. ETOI processes both resolved and unresolved resonance parameters.

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4. METHOD OF SOLUTION

For resolved resonances ETOI processes only the single-level Breit-Wigner parameters (a restriction imposed by IRESINT-3). For the unresolved resonances an energy-averaging of the energy-dependent parameters is performed.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The max. number of resolved resonances processed is 250. If this number is exceeded only the resonances regarded as most significant are taken into account. The max. number of (l,J) states is 6 in IRESINT-3. There- fore only those parameters with l values of 0 or 1 are transferred into the IRESINT-3 library.
For resolved resonances only s and p wave are processed. Resonances with negative peak energy are omitted.

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6. TYPICAL RUNNING TIME

For sample problem (processing of U238 data) 35 secs. (UNIVAC 1108).

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7. UNUSUAL FEATURES OF THE PROGRAM:

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8. RELATED AND AUXILIARY PROGRAMS

ETOI reads ENDF/B data and writes a library tape for the code IRESINT-3.

NEA-0630/01

IRESINT-3

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9. STATUS

Package ID	Status date	Status
NEA-0630/01	01-NOV-1979	Tested at NEADB

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10. REFERENCES

- R. Hoeglund, F. Wasastjerna,
  "IRESINT-3 - A Fortran Program for Computation of Resonance
   Integrals",
  Technical Research Centre of Finland, Nucl. Eng. Lab. Report 16,
  1975.

NEA-0630/01, included references:

- E. Patrakka:
  "ETOI - A Program to Process Resonance Data from ENDF/B to
   IRESINT-3"
   VTT/YDI 1974, memorandum 9.
- Note on ETOI by the Data Bank.

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11. MACHINE REQUIREMENTS

About 35 K words core on a UNIVAC 1108.
ENDF/B tape input, IRESINT-3 tape output.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0630/01	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED: EXEC8 operating system.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Program consists of a main routine and 8 subroutines one of which is an Assembler routine.

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15. NAME AND ESTABLISHMENT OF AUTHOR

          Eero Patrakka
          Nuclear Engineering Laboratory
          Technical Research Centre of Finland
          Vuorimiehentie 5
          02150 Espoo 15
          Finland.

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16. MATERIAL AVAILABLE

NEA-0630/01

File name	File description	Records
NEA0630_01.001	ENDF/B-3 NUCLIDES FOR ETOI	11701
NEA0630_01.002	SOURCE (F5,EBCDIC)	752
NEA0630_01.003	SAMPLE PROBLEM INPUT	6
NEA0630_01.004	SAMPLE PROBLEM OUTPUT	904
NEA0630_01.005	JCL AND INFORMATION	85

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17. CATEGORIES

M. Data Management

Keywords: Breit-Wigner formula, ENDF/B, data processing, resolved region, resonance integrals, unresolved region.