Projection Geometry Flashcards
1
Q
source of radiation should be
A
as small as possible
2
Q
source-film/receptor distance should be
A
as large as possible
3
Q
film/receptor-object distance should be
A
as small as possible
4
Q
object and film/receptor should be
A
parallel to each other
5
Q
radiation beam should be – to object and film/receptor
A
perpendicular
6
Q
what kind of focal spot size yields less penumbra?
A
small
7
Q
As the source-object distance increases, –
A
magnification decreases
8
Q
focal spot - collimator edge distance
A
8 in
9
Q
effect of longer collimator attachments
A
increase source-object distance = magnification decreases
10
Q
as object-receptor distance increases, –
A
magnification increases
11
Q
when object and receptor are not parallel, –
A
image is foreshortened or elongated
