Radiation Biophysics
second lecture: 24 January 2003
Interaction of Radiation with Matter
- Linear Attenuation Coefficient
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"Good" and "Bad" Geometry
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Mass, Electronic, and Atomic Attenuation Coefficients
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Definition of Cross Section
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Energy Transfer and Energy Absorption
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Mechanisms of Energy Transfer from Gamma Rays
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Photoelectric Scattering Process
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Photoelectric Effect
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Spatial Distribution of Emission
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Compton Scattering Process
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Limits of Energy Transferred
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Energy Absorbed
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Summary of the Compton Process
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Scattering Coefficients
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Energy of Compton Electrons
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Electron Binding Energy Effects
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Pair Production
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Annihilation Reaction
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Energy Transferred and Energy Absorbed
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Summary of the Pair Production Process
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Triplet Production
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Variation of Cross-section with Energy
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Bremsstrahlung: Radiative Energy Loss