Lmrt state review Questions and Answers
100% Correct
control consol The unit inside the control booth, where the operator sets all of the
exposure techniques, such as: kilovolts peak, milliampheres, and exposure time.
contrast shades of gray on an image
x ray generator ...
heat units The formula, mA x kVp x time, is used to determine what
the maximum heat capacity of the anode of the x-ray is rated in terms of: heat units
back up timer what is set in case of failure in AEC
phototimer ...
, umbra actual anatomical area on a film
penumbra The blurred/ indistinct area that surrounds an image
prime factors What is the term for the three principal factors that affect xray emission that
are under direct control of radiographer?
prime factors kvp ma time SID
anode heel effect It alters the intensity of radiation and therefore the density between the
anode and cathode ends of the x-ray tube. Due to the geometry of an angled anode target, the
radiation intensity is greater on the cathode side.
thermionic emission The process of "boiling off" of electrons from the filament coils
focusing cup small oval depression in the cathode assembly, the negative charge of the
focusing cup helps direct electrons toward the anode in a straighter less divergent path.
100% Correct
control consol The unit inside the control booth, where the operator sets all of the
exposure techniques, such as: kilovolts peak, milliampheres, and exposure time.
contrast shades of gray on an image
x ray generator ...
heat units The formula, mA x kVp x time, is used to determine what
the maximum heat capacity of the anode of the x-ray is rated in terms of: heat units
back up timer what is set in case of failure in AEC
phototimer ...
, umbra actual anatomical area on a film
penumbra The blurred/ indistinct area that surrounds an image
prime factors What is the term for the three principal factors that affect xray emission that
are under direct control of radiographer?
prime factors kvp ma time SID
anode heel effect It alters the intensity of radiation and therefore the density between the
anode and cathode ends of the x-ray tube. Due to the geometry of an angled anode target, the
radiation intensity is greater on the cathode side.
thermionic emission The process of "boiling off" of electrons from the filament coils
focusing cup small oval depression in the cathode assembly, the negative charge of the
focusing cup helps direct electrons toward the anode in a straighter less divergent path.
