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X-RAYS INTERACT with matter in the following five ways:
- (1) coherent scattering,
- (2) Compton scattering,
- (3) photoelectric effect,
- (4) pair production, and
- (5) photodisintegration.
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Only _____ scattering and _______ effect are important in making an x-ray image.
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The higher the energy of an x-ray, the _____ is its wavelength.
shorter
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Consequently, low-energy x-rays tend to interact with ____ atoms
whole
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___________ x-rays generally interact with electrons, and high-energy x-rays generally interact with nuclei.
moderate-energy
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X-rays with energies below approximately 10 keV interact with matter by ____ scattering
coherent
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In _____ scattering, the incident x-ray interacts with a target atom, causing it to become excited
coherent
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The result of ______ scattering is a change in direction of the x-ray without a change in its energy
coherent
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an interaction with outer-shell electrons that not only scatters the x-ray but reduces its energy and ionizes the atom as well. This interaction is called ________
Compton scattering
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X-rays scattered back in the direction of the incident x-ray beam are called _________
backscatter radiation
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Compton scattering reduces image_______.
contrast
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