Radiology M3 - R2: Image receptors 1 Flashcards
a medium that changes X-ray beam in to a visible image, is the definition of what
image receptor
image receptors are classified as film or digital: what would direct film be used for in dentistry?
used in intra-oral
x-rays act directly on silver halide crystals in film emulsion
image receptors are classified as film or digital: what would digital psp be used for?
psp - photo stimulate phosphor, latent image produced by interactions of x-rays with phosphor layer on plate. scanned by a laser to produce imag
if phosphor plates are not being used, what must you do to them and why
they are sensitive to loght so must be scanned/cleared every 24 hours
what colour on the film is it phosphor coating
the white side
when the x-ray is used, the psp plate in the patients mouth, is that in a stable or unstable excited state
stable excited state
when the psp plate is placed in the scanner and scanned by the red laser, is the psp in a stable or unstable excited state
unstable excited state
what light does the psp emit after it has been scanned by red lasers
the psp now emits blue lights, the scnner collects the blue light and converts to image
on a ccd sensor what is the function of the scintillator layer
converts x-ray energy to light
on a ccd sensor what is the function of the silicon wafer
converts light to electrical signal
what is PACS
picture archiving and communication system
what sizes are available for digital receptor psp
there are 4 sizes
0
1
2
4
sizes 0, 1 and 2 are used for what
periapical and bitewings
which sizes would be used for periapicals for the anterior for adults
0 and 1
all regions for children
which size would be used for the posterior region of the mouth for adults
2
