Scattered Radiation

Question 1

Xrays that travel in a different direction

Answer 1

Scatter radiation

Question 2

Scatter radiation is a product of

Answer 2

Compton interaction

Question 3

Factors affecting scatter radiation

Answer 3

Kilovoltage
Field size
Patient thickness

Question 4

Increasing kilovoltage ________ production of scatter radiation

Answer 4

Increases

Question 5

Field size increases , the production of scatter radiation

Answer 5

Increases

Question 6

Thicker the part to be examined, _____ the production of scatter radiation

Answer 6

Patient thickness

Question 7

Increasing density , _______ contrast

Answer 7

Reduces

Question 8

Source of occupational exposure through scatter radiation

Answer 8

Patient

Question 9

Control of scatter radiation

Answer 9

Beam restricting devices
Grids
Air-gap technique

Question 10

Devices that limits the field size to a small area of interest

Answer 10

Beam restrictor

Question 11

Increasing collimation decrease scatter radiation therefore

Answer 11

Increase contrast

Decrease density

Question 12

Reduction in density compensate _______ increase in mAs

Answer 12

30% to 50%

Question 13

Three types of beam restricting device

Answer 13

Aperture diaphragm
Cones and cylinders
Collimators

Question 14

Simplest type of beam restrictor

Answer 14

Aperture diaphragm

Question 15

Extended metal structure which produces a circular image

Answer 15

Cones and cylinders

Question 16

Most common beam restricting device

Answer 16

Collimator