Xray-grids, Filters, And Radiation Interactions
- 1.What would the grid ratio be with a height of 4cm and a width of .25cm?
- A.
16:1
- B.
12:1
- C.
8:1
- D.
5:1
- 2.The lead strips in a grid are made of
- A.
Lead
- B.
Aluminum
- C.
Plastic fibers
- D.
Aluminum and plastic
- 3.The grid is coated with....
- A.
Aluminum
- B.
Titanium
- C.
Lead
- D.
Plastic
- 4.Grid frequency is the...
- A.
Number of grid lines per inch
- B.
Number of grid lines per centimeter
- C.
Number of interspaces
- D.
Number of lead strips
- 5.Why are linear grids more used in clinical applications?
- A.
Better for tube angling
- B.
Can handle more kvp
- C.
Has more lead strips
- D.
Has thicker lead strips
- 6.Inherent filtration is any filtration.....
- A.
Inside the tube and housing
- B.
Inside collimator
- C.
Outside the collimator
- D.
Inside tube housing and collimator
- 7.Added filtration occurs where?
- A.
Outside the tube housing
- B.
Inside tube housing
- C.
Inside the bucky only
- D.
Inside the collimator only
- 8.Compensation filters include which of the following (check all that apply)
- A.
Wedge
- B.
Trough
- C.
K-edge
- D.
Thoraeus
- 9.Filtration is also sometimes called what?
- A.
Hardening of the beam
- B.
Diverging of the beam
- C.
Softening of the beam
- D.
Strengthening of the beam
- 10.Which type of interaction involves no energy transfer?
- A.
Coherent
- B.
Compton
- C.
Bremsstrahlung
- D.
Photoelectric
- 11.What interaction involves a incident electron interacting with an inner shell electron?
- A.
Photoelectric
- B.
Bremsstrahlung
- C.
Characteristic
- D.
Compton
- 12.In a characteristic interaction, which electron movement will be diagnostically relevant?
- A.
drop into K shell
- B.
Drop into L shell
- C.
Drop into M shell
- D.
All of the above
Questions: 13 | Attempts: 4597 | Last updated: Mar 22, 2022
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