last modified: 25-MAY-2001 | catalog | categories | new | search |

NEA-0796 ZZ-JFS-1,JFS-2,JFS-3

ZZ JFS-1, Cross-Sections Library 25-Groups ABBN and 70-Group JFS for Fast Reactor Calculation
ZZ JFS-2, 25 Group (ABBN) and 70 Group JFS Cross Sections Library for Fast Reactors
ZZ JFS-3/J2, 70 Group 30 Isotopes Cross Section Library for Fast Reactors

top ]
1. NAME OR DESIGNATION OF PROGRAM:  ZZ-JFS-V2, ZZ-JFS-3/J2.
JAERI  Fast Reactor Group Constants System.
top ]
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.
Program name Package id Status Status date
ZZ-JFS-V2 NEA-0796/03 Tested 10-FEB-1984

Machines used:

Package ID Orig. computer Test computer
NEA-0796/03 IBM 3081 IBM 3081
top ]
3. DESCRIPTION OF PROBLEM OR FUNCTION



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


  JFS-V2-1

  ========



  FORMAT: ABBN energy structure



  NUMBER OF GROUPS: 25 group constants



NUCLIDES: Be, B-10, B-11, C, O, Na, Al, Si, Cr, Mn, Fe, Ni, Cu, Mo, Th-232, U-233, U-234, U-235, U-236, U-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, fission products of U-235, and fission products of Pu-239.



  ORIGIN: ENDF/B-IV



WEIGHTING SPECTRUM: The cross-section adjustment has been made by using an auxiliary equation for simultaneous evaluations for U-235,  U-238, and Pu-239.





  JFS-V2-2

  ========



  FORMAT: JFS  energy  structure



  NUMBER OF GROUPS: 70 group constants



NUCLIDES: Be, B-10, B-11, C, O, Na, Al, Si, Cr, Mn, Fe, Ni, Cu, Mo, Th-232, U-233, U-234, U-235, U-236, U-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, fission products of U-235, and fission products of Pu-239.



  ORIGIN: ENDF/B-IV



WEIGHTING SPECTRUM: The cross-section adjustment has been made by using an auxiliary equation for simultaneous evaluations for U-235,  U-238, and Pu-239.





  JFS-3/J2

  ========



  FORMAT:



  NUMBER OF GROUPS: 70 group constants with quarter-lethargy width



NUCLIDES: H-1, He-4, Be-9, B-10, B-11, C-12, N-14, O-16, Na-23, Al-27, Si, Ar, Ti, V, Cr, Mn-55, Fe, Ni, Cu, Zr, Nb-93, Mo, Eu-151, Eu-153, Gd, Gd-155, Gd-156, Gd-157, Gd-158, Gd-160, Ta-181,  W, Th-228, Th-230, Th-232, Th-233, Th-234, Pa-233, U-233, U-234, U-235, U-236, U-238, Np-237, Np-239, Pu-236, Pu-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, Am-242m, Am-242g, Am-243, Cm-242, Cm-243, Cm-244, Cm-245 and 12 LFPs for 4 mother nuclides (U-235, U-238, Pu-239 and Pu-241) and 3 burnup days (180, 1080 and 1800).



  ORIGIN: JENDL-2 and ENDF/B-V



WEIGHTING SPECTRUM: the collision density spectrum for a typical large LMFBR core spectrum is used as the weighting function.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

ZZ-JFS-3/J2: To improve fast reactor group constant set JFS-3-J2 to  be applicable for high burnup reactor calculation, burnup depending  lumped FP group cross sections for mother fission isotopes of U-235, U-238, Pu-239 and Pu-241 have been generated by using 155 FP nuclides of JENDL-2 and ENDF/B-V data. The group constants for minor actinides such as Np, Am, and Cm have been produced on the basis of  the JENDL-2 data, to be used for TRU-transmutation calculations. This library is designed for JAERI fast reactor analysis and design  code system. This library contains the 70 group constants with quarter-lethargy width for the following 59 nuclides and 12 lumped fission products: H-1, He-4, Be-9, B-10, B-11, C-12, N-14, O-16, Na-23, Al-27, Si, Ar, Ti, V, Cr, Mn-55, Fe, Ni, Cu, Zr, Nb-93, Mo, Eu-151, Eu-153, Gd, Gd-155, Gd-156, Gd-157, Gd-158, Gd-160, Ta-181,  W, Th-228, Th-230, Th-232, Th-233, Th-234, Pa-233, U-233, U-234, U-235, U-236, U-238, Np-237, Np-239, Pu-236, Pu-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, Am-242m, Am-242g, Am-243, Cm-242, Cm-243, Cm-244, Cm-245 and 12 LFPs for 4 mother nuclides (U-235, U-238, Pu-239 and Pu-241) and 3 burnup days (180, 1080 and 1800).

ZZ-JFS-V2: 25-group constants in ABBN energy structure and 70-group  constants in JFS energy structure for the following elements: Be, B-10, B-11, C, O, Na, Al, Si, Cr, Mn, Fe, Ni, Cu, Mo, Th-232, U-233, U-234, U-235, U-236, U-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, fission products of U-235, and fission products of Pu-239.
top ]
4. METHOD OF SOLUTION

ZZ-JFS-3/J2: Group constants are generated with the data processing  code system TIMS-PGG. In this code, the collision density spectrum for a typical large LMFBR core spectrum is used as the weighting function. The group constants in the unresolved resonance region are produced on the basis of the random sampling resonance generation method. The ultra-fine group calculation method is used for the resonance region.
The resonance shielding factors are tabulated for 8 background potential scattering cross sections (0, 1, 10, 100, 1000, 10000, 100000 and 1000000 barns), 4 temperatures (300, 800, 2100, and 4500) and 4 resonance  interface parameters.

ZZ-JFS-V2: The cross-section adjustment has been made by using an auxiliary equation for simultaneous evaluations for U-235, U-238, and Pu-239. For light and intermediate elements, the nuclear data for ENDF/B-IV were used.
top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:
top ]
6. TYPICAL RUNNING TIME

NEA 0697/03: The library generation programs were executed by NEA-DB on IBM 3081. The following CPU times were found:

         Program     Data Library    Exec time (sec)
         -------     ------------    ---------------
         JFS2CARD    70-grp Lib           12.11
                     25-grp Lib            4.64
         JFS2BINA    70-grp Lib           15.86
                     25-grp Lib            6.24
         JFSMAKE     70-grp Lib            2.28
                     25-grp Lib            0.88
top ]
7. UNUSUAL FEATURES OF THE PROGRAM:
top ]
8. RELATED AND AUXILIARY PROGRAMS

JFS3CARD : JFS-3 user library is tranferred from binary to card              mode.
JFS3BINA : JFS-3 user library is tranferred from binary to card               mode.
DUMP70     : Tables of group constants are printed out.
EXPANDA-G-S: One-dimensional diffusion code uses the JFS-3-J2              library.
SLAROM-3 : Heterogeneous cell calculation code uses the JFS-3-J2              library.
NEA-0796/03
JFS2CARD            Binary-to-BCD conversion of data library
JFS2BINA            BCD-to-binary conversion of data library
JFSMAKE             Library generation for EXPANDA/GS
top ]
9. STATUS
Package ID Status date Status
NEA-0796/03 10-FEB-1984 Tested at NEADB
top ]
10. REFERENCES

- A Study of Group Constant Generation Methods in Fast Reactor
  Analysis
  JAERI-M83-075 (May 1983).
NEA-0796/03, included references:
- H. Takano, A. Hasegawa, M. Nakagawa, Y. Ishiguro and S. Katsuragi:
  JAERI Fast Reactor Group Constants Set, Version 2.
  JAERI 1255  (March 1978).
- H. Takano:
  JFS-V2 Utility Codes - User's Manual.
top ]
11. MACHINE REQUIREMENTS:
NEA-0796/03
Main storage requirements for execution of the utility  programs on IBM 3081 are:
        JFS2CARD:   64K bytes
        JFS2BINA:   56K bytes
        JFSMAKE:   200K bytes
top ]
12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-0796/03 FORTRAN-IV
top ]
13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:
top ]
14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
top ]
15. NAME AND ESTABLISHMENT OF AUTHOR

          H. Takano and K. Kaneko
          Department of Nuclear Engineering
          JAERI
          Tokai-mura, Naka-gun, Ibaraki-ken, Japan
top ]
16. MATERIAL AVAILABLE
NEA-0796/03
File name File description Records
NEA0796_03.003 ZZ-JFS-V2 INFORMATION FILE 203
NEA0796_03.004 JFS2CARD SOURCE PROGRAM (FORTRAN-4) 67
NEA0796_03.005 JFS2BINA SOURCE PROGRAM (FORTRAN-4) 65
NEA0796_03.006 JFSMAKE SOURCE PROGRAM (FORTRAN-4) 697
NEA0796_03.007 JFS2CARD JCL FOR TEST CASE EXECUTION 50
NEA0796_03.008 JFS2BINA JCL FOR TEST CASE EXECUTION 50
NEA0796_03.009 JFSMAKE INPUT DATA & JCL 53
NEA0796_03.010 JFS2CARD 70-GRP RUN PRINTED OUTPUT 88
NEA0796_03.011 JFS2CARD 25-GRP RUN PRINTED OUTPUT 68
NEA0796_03.012 JFS2BINA 70-GRP RUN PRINTED OUTPUT 87
NEA0796_03.013 JFS2BINA 25-GRP RUN PRINTED OUTPUT 67
NEA0796_03.014 JFSMAKE 70-GRP RUN PRINTED OUTPUT 54
NEA0796_03.015 JFSMAKE 25-GRP RUN PRINTED OUTPUT 46
NEA0796_03.016 JAERI 70-GRP FAST SET LIBRARY (FORMATTED) 82397
NEA0796_03.017 JAERI 25-GRP FAST SET LIBRARY (FORMATTED) 29457
top ]
17. CATEGORIES
  • B. Spectrum Calculations, Generation of Group Constants and Cell Problems
  • Z. Data.

Keywords: JAERI fast x-sec data set, data library, fast neutrons, fast reactors, group constants, multigroup.