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Concerning Compton interaction, which of the following are correct? a. It involves the collision of X-ray photons with any electron b. The probability that Compton attenuation will occur decreases as photon energy is increased c. Increasing the tube voltage results in a higher proportion of side scatter d. The higher the scatter angle, the greater the penetration of the recoil electrons e. An increase in the incident photon energy results in scatter photons with greater energy |
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Answer» a. False. Compton interaction refers to the interaction of incident photons with free or loosely bound electrons only. b. True. Attenuation generally decreases with increasing photon energies. However, the rate of decrease is much higher for photoelectric than for Compton attenuation. c. False. Increasing the tube voltage results in increased photon energy (keV) that in turn causes less side scatter. d. True. The greater the scatter angle, the greater the energy and range of the recoil electrons. e. True. |
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