What are x-rays - ️️radiant energy waves that are produced, charged, and emitted from a common center in the dental radiation tube.
What does exposure time control? - ️️duration of the interval during which current will pass through the X-ray tube; this period may be stated as fractions of...
What are x-rays - ✔ ✔ radiant energy waves that are produced,
charged, and emitted from a common center in the dental radiation tube.
What does exposure time control? - ✔ ✔ duration of the interval
during which current will pass through the X-ray tube; this period may
be stated as fractions of a second or impulses (60 pulses to a second).
The amount of exposure that a patient actually receives is measured in
milliampere seconds (mAs)
What does milliampere control? - ✔ ✔ mA describes the quantity of
the electrons that control the amount of X-rays produced for the primary
beam. An increase in milliamperage increases the amount of electrons
available and darkens the overall radiograph.
what does the aluminum filter do? - ✔ ✔ aluminum disks that are
placed between the collimator attachment and the exit window of the
tube to absorb weak radiation.
what does the anode do? - ✔ ✔ the target for the electron cloud that
converts the electron force into photons.
What does the aperture do? - ✔ ✔ opening in the lead collimator disk
that regulates the size of the primary beam.
what does the cathode do? - ✔ ✔ electrode in the X-ray tube that is
the electron source.
what does the collimator do? - ✔ ✔ a lead device inside the X-ray
tubehead used to restrict the size and shape of the X-ray beam, helping
to avoid stray radiation.
, What does the filament do? - ✔ ✔ tungsten coil in the cathode
focusing cup that heats up to generate the electrons.
what does the focal spot do? - ✔ ✔ target area on the anode where
rays are projected to make the primary beam, or central beam; the
smaller focal spot produces a better image.
What does the kilovolt power control? - ✔ ✔ kVp describes the
quality of the X-ray beam and controls the force that attracts the
electrons to the anode. kVp helps to determine the penetrating power
and the energy of the X-rays.
What is PID? - ✔ ✔ position indicating device
Features of a diagnostically acceptable image - ✔ ✔
Foreshortening is caused by... - ✔ ✔ tooth structures appear shorter
than their actual anatomical size; caused by excessive vertical angulation
of the central ray
Horizontal angulation - ✔ ✔ direction of the central X-ray beam in a
horizontal plane (side to side). The central beam must be placed
perpendicular to the film front and teeth alignment. The error observed
with improper horizontal angulation is called overlapping or cone
cutting.
How are x-rays generated? - ✔ ✔ The X-ray tube, also known as a
vacuum tube, produces X-rays. The vacuum tube contains these seven
elements of note: cathode, filament, anode, focal spot, aluminum filter,
collimator, aperture
Identify radiographs used to examine or view specific conditions, teeth
or landmarks. - ✔ ✔
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