RAD Science Quiz 2 Flashcards
1
Q
What 3 things influence the production of scatter radiation
A
pt. thickness
field size
kV
2
Q
List three types of beam restriction devices
A
Aperature diaphram
variable aperature collimator
cone/cylinder
3
Q
What does the first stage shutters of the collimator do?
A
controls off-focus radiation
4
Q
What is the standard material of filtration?
A
Aluminum
5
Q
List the 3 components of inherent filtration
A
thick glass
glass window
oil around the tube
6
Q
Total filtration=
A
inherant filtration + added filtration
7
Q
As filtration decreases, patient does increases/decreases
A
increases
8
Q
List 2 types of compensating filters
A
wedge filter
trough filter
9
Q
What is a PBL
A
Primary Beam Limitation
10
Q
The HVL increases beam _ and decreases beam _
A
quality
quantity
