Method and apparatus for modeling cosmic ray effects on...

Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression

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C703S006000

Statutory Invention Registration

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H0002171

ABSTRACT:
An aspect of the present invention is a method and apparatus for computing a geomagnetic transmission function. This apparatus includes a programmed digital computer running modeling software for modeling the transmission of cosmic ray particles through the magnetosphere. The software includes a model representing a solution to the Lorentz equation in a magnetic field given by B=BIGRF(r,t′)+BTSYG(Kp,r,t′). Another aspect of the present invention is a method and apparatus for computing a flux of particles at the outer surface of a satellite comprising, inter alia, an improved method and apparatus for computing a flux of solar heavy ions. This apparatus includes a programmed digital computer running modeling software for modeling the flux of cosmic ray particles through the outer surface of a satellite. Another aspect of the invention is a method and apparatus comprising a programmed digital computer running modeling software for modeling the effect of cosmic rays on microelectronics, where this software embodies at least one of the two foregoing aspects of the invention.

REFERENCES:
Tylka et al.; CREME96: a revision of the Cosmic Ray Effects on Microelectronics code; IEEE Trans. Nuclear Science; pp. 2150-2160; Dec. 1997.
“Cosmic Ray Effects on Microelectronics, Part I: The Near-Earth Particle Evironment,” Adams, Jr. et al., NRL Memorandum Report 4506, Aug. 25, 1981.
“Cosmic Ray Effects on Microelectronics, Part II: The Geomagnetic Cutoff Effects,” Adams, Jr. et al., NRL Memorandum Report 5099, May 26, 1983.
“Cosmic Ray Effects on Microelectronics, Part IV,” James H. Adams Jr., NRL Memorandum Report 5901, Dec. 31, 1986.
“CREME96: A Revision of the Cosmic Ray Effects on Micro-Electronics Code,” Transactions on Nuclear Science 44(6) 2150-60, Tylka et al. (1997).
“A Magnetoshperic Magnetic Field Model with a Warped Tail Current Sheet,” Planet. Space Sci. 37(1) 5-20, Tsyganenko (1989).
“Hourly Values of Equatorial Dst for the IGY,” Ann. Int. Geophys. 9-45, Sugiura, M., 1964.
IAGA Bulletin 27, 1969, 123, resolution 2.
Bartels, J., “The Standard Index, Ks, and the Planetary Index, KP,” IATME Bulletin 12b, 97 IUGG Pub. Office, Paris, 1949.
“A Model of Galactic Cosmic Ray Fluxes,” Nucl. Tracks Radiat. Meas. 20 427, Nymmik et al. (1992).

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