Kats Test Review

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Kats Test Review
2014-02-09 03:14:14
Kats Test Review

Kats Test Review
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  1. _______ is The replacement of fresh chemicals after the loss of
    chemicals during processing.
  2. ______ _______ Converts xray energy into light.
    intensifying screen
  3. the number and size of _____ ______ ______ in the emulsion Determines the relative speed of the film.
    silver halide crystals
  4. .Has lead lines that are angled to approximately match the
    angle of the divergence of the primary beam.
    What is focused grid
  5. ___ _____ Refers to the linear pattern of the lead lines of a grid.
    grid pattern
  6. . A decrease in the number of transmitted photons that reach
    the image receptor because of some misalignment of the grid.
    What is grid cutoff
  7. Located directly below the radiographic table what contains
    the grid and holds the IR.
  8. Simplest type of beam restricting device, constructed of a
    flat piece of lead that has a hole in it.
    What is an aperture diaphragm
  9. . Increasing the volume of tissue irradiated results in an
    increase of what?
    scatter radiation
  10. _______ reduce patient dose, increases contrast and
    decreases scatter
  11. The primarily result of Compton interactions.
  12. Several sensitivity specks with many silver ions attracted
    them become what?
    latent image center
  13. .After exposure, they trap the free electrons and then
    attract and neutralize the positive silver ions.
    What are sensitivity specs
  14. . Site of the latent image formation.
    physical imperfections in the silverhalide crystals
  15. _____ are The radiation sensitive and light sensitive layer of the
  16. Grid lines going opposite the angle of the divergence of the
    xray beam.
    upside down focused grid cutoff.
  17. correctly matching the color sensitivity of the film
    to the color emission of the intensifying screen is called
    Spectral matching
  18. ______ ______ Clears undeveloped silver halide from the film during
    fixing agent.
  19. Range of exposure intensities that an IR can respond to
    and aquire image data.
    dynamic range
  20. _____ _____ is The degree to which the emulsion is sensitive to xrays or
    film speed
  21. _______ Affects the range of radioation exposures that can provide
    diagnostic optical densities.
  22. ______ contrast have a
    narrow exposure latitude (extremity) or ____ contrast has a wider exposure
    latitude (chest)
    • Higher
    • Low
  23. . A reducing agent found in film development chemistry that
    produces the black (higher) densities is
  24. . Permits film to enter the processor easily and correctly

    What is the
    feed tray
  25. When
    should a grid be used?
    60kVp or higher and greater than 10cm