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19 Cards in this Set

  • Front
  • Back
Photographic properties
density and contrast
Geometric properties
recorded detail and distortion
Increase mAs
-density increases
-no effect on contrast
-no effect on geometric properties
Decrease mAs
-density decreases
-no effect on contrast
-no effect on geometric properties
Increase kVp
-density increase
-contrast decrease
-no effect on geometric properties
Decrease kVp
density decrease
contrast increase
-no effect on geometric properties
Increase SID
-density & distortion decrease
-no effect on contrast
-detail increases
Decrease in SID
-density & distortion increase
-no effect on contrast
-detail decrease
Increase in OID
-density & detail decreases
-contrast & distortion increases
Decrease in OID
-density & detail increases
-contrast & distortion decreases
Increase in Grid Ratio
-density decreases
-contrast increases
-no effect on geometric properties
Decrease in Grid Ratio
-density increases
-contrast decreases
-no effect on geometric properties
Increase in Film-screen speed
-density increases
-detail decreases
-no effect on contrast & distortion
Decrease in Film-screen speed
-density decreases
-detail increases
-no effect on contrast & distortion
Increase Collimation
-density decrease
-contrast increase
-no effect on geometric prop.
Decrease Collimation
-density increases
-detail decreases
-no effect on contrast & distortion
Increase Focal spot size
-no effect on density,contrast,distortion

-decrease detail
Decrease Focal spot size
-no effect on density,contrast,distortion

-increase detail
Increase in Central Ray angle
-density & detail decreases
-distortion increases
-no effect on contrast