Transcription of The Radiation Environment - NASA
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J. Barth/Code 562 The Radiation EnvironmentSolar Protons&Heavier IonsGalactic Cosmic RaysTrapped ParticlesNikkei Science, Inc. of Japan, by K. EndoJ. Barth/Code 562 Components of the Natural EnvironmentuTransient Galactic Cosmic Rays Protons & Heavier Ions Solar Particle Events Protons & Heavier IonsuTrapped Electrons, Protons, & Heavier IonsuAtmospheric & Terrestrial Secondaries NeutronsJ. Barth/Code 562 Radiation & EffectsuTotal Ionizing Dose Cumulative long termionizing damage due toprotons & electronsuDisplacement Damage Cumulative long term non-ionizing damage due toprotons, electrons, &neutronsuSingle Event Effects Event caused by a singlecharged particle - heavy ions& protons for some devicesE.
Zurich Smoothed Sunspot Number Cycle 20 Cycle 21 Cycle 22 * * * 0 20 40 60 80 100 120 140 160 180 200 Protons (#/cm 2) Year Proton Event Fluences. J. Barth/Code 562 Modeling Approach u Statistical Engineering Model » Intensity as a Function of Mission Duration & Confidence Level » Does Not Predict When Events Occur
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