1. NAME AND TITLE

WINDOWS II: A Program for the Analysis of Spectral Data Foil-Activation Measurements.

AUXILIARY ROUTINES

WINDOW15

WINDOW40

PSR-136/WINDOWS is a simplified and slightly faster version of CCC-233/CRYSTAL BALL. Its name refers to its ability to model integral responses to a neutron flux. These responses may be thought of as views of the neutron spectrum through a "window" open between the bounds of integration and colored by the underlying response function.

WINDOWS II differs from PSR-136/WINDOWS in its types of output. All the subroutines that permit direct plotting via CALCOMP commands were changed or deleted. Instead of plotting spectra and "window" functions, this version creates several data sets. No new switches or parameters have been introduced. The only change to note is that, in the procedural data, requests for plots are treated as requests for output.

2. CONTRIBUTOR

Oak Ridge National Laboratory, Oak Ridge, Tennessee.

3. CODING LANGUAGE AND COMPUTER

Fortran IV; IBM 370.

4. NATURE OF PROBLEM SOLVED

WINDOWS II is capable of unfolding neutron differential spectra estimating windows and detector contributions, laying upper and lower bounds for integral response, and obtaining group fluxes from neutron transport calculations.

5. METHOD OF SOLUTION

Instead of plotting spectra and "window" functions which existed in WINDOWS, WINDOWS II creates several data sets. This change allows users to use the interactive graphics capability which is available on the DEC-10 system.

WINDOWS II is more easily transported than WINDOWS because it includes no direct plotting via CALCOMP commands.

6. RESTRICTIONS OR LIMITATIONS

None noted.

7. TYPICAL RUNNING TIME

No study has been made by RSIC of typical running times for WINDOWS II.

8. COMPUTER HARDWARE REQUIREMENTS

WINDOWS II is operable on the IBM 370 computer.

9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran IV compiler is required.

10. REFERENCES

F. W. Stallmann, "Notes on Modifications to WINDOWS," Informal note (March 1981).

F. W. Stallmann, J. F. Eastham, and F. B. K. Kam, "WINDOWS - A Program for the Analysis of Spectral Data Foil Activation Measurements," ORNL/TM-6656 (December 1978).

11. CONTENTS OF CODE PACKAGE

Included are the referenced documents and one (1.2MB) DOS diskette which contains the source code and library input and output from WINDOW15.

12. DATE OF ABSTRACT

April 1984.