1. NAME AND TITLE

ORPLOTPC: Plotting Package for Data Evaluation Intercomparison.

2. CONTRIBUTOR

Oak Ridge National Laboratory, Oak Ridge, Tennessee.

3. CODING LANGUAGE AND COMPUTER/OPERATING SYSTEM

Fortran 77;IBM PC 386.

4. NATURE OF PROBLEM SOLVED

Graphical comparison of cross sections computed from evaluated libraries (ENDF/B-VI, JEF-2/EFF-2, BROND, JENDL-3) versus measured data is performed by IBM-PC 386's and compatibles and plotted on Hewlett-Packard laser printers.

5. METHOD OF SOLUTION

The source code is adopted from an older routine ORPLOT so that it may run on the IBM-PC 386 or compatibles. Subroutines for each part of ORPLOTPC may be compiled and linked to plot different types of results. XSECT converts ENDF/B V and VI evaluated data tables into plotting formats and so they then may be compiled with data retrieved from other sources and plotted using PLOTXS for comparison. DSIG, SPECTRA, and GAMSPEC are the main routines which plot differential scattering cross sections, angle-integrated results, and write the differential cross section vs. the outgoing gamma-ray energy, respectively.

6. RESTRICTIONS OR LIMITATIONS

The data files plotted by PLOTXS are in ENDF/B V or VI, (MF=3 and the desired MT) format converted using XSECT. DSIG uses the ENDF/B V or VI directly which are first, (MF=3, and MT = 2, 51-90). SPECTRA uses ENDF/B V or VI formatted files directly, using MF=3 cross sections and MF=5 (ENDF/B-V) or MF=6 (ENDF/B-VI) energy distributions. SPECTRA allows secondary energy distribution laws LF=1, (for ENDF/B-V), LF=1, 2, or 3 (for ENDF/B-VI), 7 Maxwellian fission spectrums, and 9 evaporation spectrums.

GAMSPEC plots only total cross sections (i.e. the sum of the gammas from the reactions and the discrete levels). The ENDF/B-V or VI formatted files are used with several options to read the MF files.

Formats and laws, other than ENDF, may not be recognized but modifying the source codes to include these should be straightforward.

7. TYPICAL RUNNING TIME

The running time is dependent on the type of problem and the hardware used, but generally a plot takes a few minutes.

8. COMPUTER HARDWARE REQUIREMENTS

ORPLOTPC executables require a 386 or 486 personal computers, math co-processor, and a HP laserjet. Any PC 386 or compatible using a Hewlett-Packard or compatible laser printer would be adequate. For screen plots, WordPerfect 5.1 is required to convert and display on an EGA or VGA monitor and/or include in documents. The entire software package with examples will require over 11 Mbytes of space on the hard drive.

9. COMPUTER SOFTWARE REQUIREMENTS

Since the code has been adopted to run on PC 386's and print to Hewlett-Packard laser printers and their compatibles, the only restrictions would be differing compiler requirements. The newer fortran compilers i.e. Microsoft, Ryan McFarland, and Lahey each require changes to be made to the source code in order to run. The source codes have been adapted to the Lahey Version F77L-EM/32 version 5.0 compiler and linker which require DOS 3.3 or higher.

10. REFERENCES

D. M. Hetrick, "Tools and Techniques for Evaluation Intercomparison," Oral presentation, Symposium on Nuclear Data Evaluation Methodology, Brookhaven National Laboratory, Upton, NY, October 12-16, 1992. Proc. to be published. (1993).

D. M. Hetrick, "User Examples," Informal Notes (1993).

11. CONTENTS OF CODE PACKAGE

Included are the referenced document and 3 DS/HD (1.2 MB) diskettes which contain the Fortran source files, executables and data files for use with examples, and README.1ST. All files that have been compressed used PKware software. The file README.1ST describes the installation and operation of the code.

12. DATE OF ABSTRACT

March 1993.