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METHODS FOR HEAVY NUCLEI
RELATIVE ABUNDANCE AND ENERGY SPECTRA OF COSMIC RAYS
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2.3 particles/cm2-sec 25 group 30 MeV/nucleon 463-km CIRCULAR ORBITS 90 deg Inclination absorbed dose allowed cone altitude and inclination approximation methods average LET calculate the dose CALCULATED COSMIC RAY Cosmic Ray Pseudo-Total Cosmic-ray dose rates Delayed effect depth Differential energy spectra differential spectrum EARTH ORBITAL earth's magnetic field electron volts energy per nucleon equation 26 fictitious secondary dose Figures 9 function of orbit function of shield g/cm2 of aluminum heavy nuclei helium nuclei hydrogen and helium inclination and shield inelastic cross section kinetic energy maximum orbit altitude orbit inclination PARTICLES/CM2-SEC ABOVE 30 percent power in tissue primary dose primary particle PSEUDO-TOTAL DOSE RATES quality factor rates in rems ratio ray dose rates Ray Pseudo-Total Doses relative abundances rem dose rem/year dose shield thickness shown in Table solar cycle solar minimum solar proton solid angle SQ(E stopping power Summary of Cosmic thin shields total dose