1. NAME AND TITLE
XPORT: An Approximation For Black Body X-Ray Transport in Air.
Oak Ridge National Laboratory, Oak Ridge, Tennessee.
3. CODING LANGUAGE AND COMPUTER
BASIC; IBM PC.
4. NATURE OF PROBLEM SOLVED
XPORT approximates the air-transported x-ray spectrum from nuclear detonations in the
5. METHOD OF SOLUTION
The method in XPORT consists of: 1) representing the black body continuous spectrum by discrete
emission windows, 2) consulting tables of photon buildup factors for the discrete emission energies,
3) unfolding the buildup photons by using air kerma response functions and an assumption for
redistributing these photons to windows of lower energy, and 4) applying cutoff and weighting factors
to improve the correlation with the Monte Carlo benchmark calculations.
6. RESTRICTIONS OR LIMITATIONS
7. TYPICAL RUNNING TIME
The sample case took only a few seconds on an IBM PC/XT under the DOS operating system.
8. COMPUTER HARDWARE REQUIREMENTS
IBM PC and compatibles.
9. COMPUTER SOFTWARE REQUIREMENTS
The code was written in Microsoft QuickBasic under PC-DOS (IBM PC). An executable file
produced by the BASIC compiler is included.
C. M. Haaland, R. T. Santoro, and J. M. Barnes, "An Approximation For Black-Body X-Ray Transport in Air," ORNL/TM-10810 (August 1988).
C. M. Haaland, Informal Notes (1989).
11. CONTENTS OF CODE PACKAGE
Included are the referenced document and one (360 K) DOS diskette.
12. DATE OF ABSTRACT
KEYWORDS: MICROCOMPUTER; AIR TRANSPORT; GAMMA-RAY; WEAPONS RADIATION; X-RAY