NEA-1390 ZZ-UKFY2.

1. NAME OR DESIGNATION OF PROGRAM:  ZZ-UKFY2.

3. DESCRIPTION OF PROGRAM OR FUNCTION

  FORMAT: ENDFB-6 format

  NUMBER OF GROUPS:

NUCLIDES: Th-232, U-233, U-234, U-235, U-236, U-238, Np-237, Np-238, Pu-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, Am-242, Am-243, Cm-243, Cm-244, Cm-245, and from the spontaneous fission of  Cm-242, Cm-244, and Cf-252.

  ORIGIN: New evaluation (Crouch 1, 2, 3, 4; UKFY1; JEF-1)

  WEIGHTING SPECTRUM: --

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
A new evaluation of fission product yields from the thermal, fast, and 14 MeV neutron-induced fission of the following nuclides has been prepared in ENDFB-VI format: 232Th, 233U, 234U, 235U, 236U, 238U, 237Np, 238Np, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 241Am, 242mAm, 243Am, 243Cm, 244Cm, 245Cm; and from the spontaneous fission of 242Cm, 244Cm, and 252Cf.

4. METHOD OF SOLUTION:

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

6. TYPICAL RUNNING TIME

NEA 1390/02: The evaluation programs FITFYS and FYSSCAN were compiled by the NEA-DB and executed on a 80386DX desktop computer. Elapsed execution times required were: 1 hour 58 minutes for FYSSCAN and 2 minutes 15 seconds for FITFYS.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS:

10. REFERENCES

- M. Lammer:
  UKFY2 The UK Fission Product Yield Library, Version 2, 1991
  IAEA-NDS-124, Rev. 0 (April 1991)

- M.F. James,, R.W. Mills, D.R. Weaver:
  A New Evaluation of Fission Product Yields and the Production of
  a New Library (UKFY2) of Independent and Cumulative Yields.
  Part I - Methods and Outline of the Evaluation
  AEA-TRS-1015
- M.F. James, R.W. Mills, D.R. Weaver:
  A New Evaluation of Fission Product Yields and the Production of
  a New Library (UKFY2) of Independent and Cumulative Yields.
  Part II - Tables of Measured and Recommended Fission Yields
  AEA-TRS-1018
- M.F. James, R.W. Mills, D.R. Weaver:
  A New Evaluation of Fission Product Yields and the Production of
  a New Library (UKFY2) of Independent and Cumulative Yields.
  Part III - Tables of Fission Yields with Discrepant or Sparse Data
  AEA-TRS-1019
- M.Lammer
UKFY2 - The UK Fission Product Yield Library, Version 2, 1991
Summary Documentation
IAEA-NDS 124

11. MACHINE REQUIREMENTS:

The lengths of the .EXE files are: FITFYS.EXE: 500KB;
FYSSCAN: 470KB. A 80387 math co-processor was used.

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

MS-DOS 5.0 with compiler Microsoft FORTRAN Vers.5.0.

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

15. NAME AND ESTABLISHMENT OF AUTHORS

             M.F. James
             Winfrith Technology Centre
             AEA Technology, UK

             R.W. Mills and D.R. Weaver
             University of Birmingham, UK

File name	File description	Records
NEA1390_02.001	Information file	87
NEA1390_02.002	Author's information	35
NEA1390_02.003	Chain yield data (self-extr.)	0
NEA1390_02.004	Average cumulative yields (self-extr.)	0
NEA1390_02.005	Unadjusted chain yields (self-extr.)	0
NEA1390_02.006	Experimental data base (self-extr.)	0
NEA1390_02.007	FITFYS,FYSSCAN (self-extr.)	0
NEA1390_02.008	DOS file-names	7