X-Ray Emission

Question 1

Factors that affect Quantity

Answer 1

Filtration- attenuates (absorb or scatter) the x-rays
Lower energy x-rays are preferentially absorbed
Average beam energy increases
Distance, d
(as distance increases quantity decreases)

Question 2

Current
Potential
Distance
Filtration

Answer 2

mAs
Kvp (voltage)
inverse square
absorption/attenuation

Question 3

More energy = more

More energy =

Answer 3

(deeper) penetration
higher Quality
Opposite of penetration is attenuation = stop

Question 4

Properties of Attenuation

Attenuation is the reduction in quantity

Answer 4

x-rays are attenuated exponentially
The rate of attenuation depends on quality of the beam
Lower energies are attenuated more rapidly( they penetrate less)
higher energies penetrate more

Question 5

The higher the atomic number, Z of the material the _______ penetration of the x-rays

Answer 5

Less

Question 6

What is a factor that does not affect x-ray Quality?

Answer 6

Current/Distance
Current affects the Quantity 
Distance is related to Quantity
(the quantity is less at a farther distance but the energy remains unchanged)
Potential- kvp

Question 7

What happens to the beam current when increased

Answer 7

Proportional increase in amplitude

Energy does not change, no change in curve shape

Question 8

As _____ increases, quality increases

Answer 8

kvp

Question 9

Factors that affect Quality

Answer 9

Increasing filtration- increases quality

decreases quantity- x-ray attenuation