Radiology M3 - R2: Image receptors 1 Flashcards

1
Q

a medium that changes X-ray beam in to a visible image, is the definition of what

A

image receptor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

image receptors are classified as film or digital: what would direct film be used for in dentistry?

A

used in intra-oral

x-rays act directly on silver halide crystals in film emulsion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

image receptors are classified as film or digital: what would digital psp be used for?

A

psp - photo stimulate phosphor, latent image produced by interactions of x-rays with phosphor layer on plate. scanned by a laser to produce imag

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

if phosphor plates are not being used, what must you do to them and why

A

they are sensitive to loght so must be scanned/cleared every 24 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what colour on the film is it phosphor coating

A

the white side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

when the x-ray is used, the psp plate in the patients mouth, is that in a stable or unstable excited state

A

stable excited state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

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

A

unstable excited state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what light does the psp emit after it has been scanned by red lasers

A

the psp now emits blue lights, the scnner collects the blue light and converts to image

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

on a ccd sensor what is the function of the scintillator layer

A

converts x-ray energy to light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

on a ccd sensor what is the function of the silicon wafer

A

converts light to electrical signal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is PACS

A

picture archiving and communication system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what sizes are available for digital receptor psp

A

there are 4 sizes

0

1

2

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

sizes 0, 1 and 2 are used for what

A

periapical and bitewings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

which sizes would be used for periapicals for the anterior for adults

A

0 and 1

all regions for children

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

which size would be used for the posterior region of the mouth for adults

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

whic size would be used for occlusals

A

size 4

17
Q

which is the only size available for a solid state receptor

A

size 2

18
Q
A