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Computed Radiography CR Review

These questions review CR concepts.

TheresaWilliams3
Created Date 04.22.20
Last Updated 04.23.20
Viewed 5 Times
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  • Light scatters ____ within the Phosphor layer of the PSP.
  • The phosphor layer of the CR cassette is also known as the:
  • The phosphors ("grains") within the CR cassette are of the ____ family.
  • The phosphors (grains) within the CR plate, are doped (covered) with:
  • The latent image in CR is said to be:
  • This term means the general emission of light:
  • This term means the immediate emission of light:
  • This term means the delayed emission of light via stimulation:
  • The type of interactions that take place in the CR active layer, are:
  • This releases the latent image within the CR active layer:
  • The PSP is read in a ____ pattern, giving 'energy' to trapped electrons.
  • This device picks up the light released from the plate as the electrons settle back into their orbits.
  • This device converts light to an electrical signal, so it can be visible on the monitor for display.
  • This erases the CR plate, so it is ready for re-use.
  • ______ the sampling frequency of the analog signal, will ______ the spatial resolution of the image.
  • The center of one pixel to the center of the next, defines:
  • The smaller the pixel pitch, the ______ spatial resolution.
  • The _____ the phosphor layer of the CR plate, the ______ the resolution.
  • This is the range of exposures over which a detector can acquire image data.
  • This is the range of exposures that provide a quality low noise image at exposures consistent with ALARA.
  • Digital imaging receptors have a ____ dynamic range.
  • The response to radiation with digital imaging is:
  • The use of grids is more critical with digital, because digital:
  • CR cassettes should be erased:
  • Exposure Index numbers indicate:
  • Which Exposure Index has an inversely proportional relationship to exposure?
  • When changing the EI # (Kodak) by decreasing the mAs by half, the EI # will:

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