WorksheetsQUIZ CHAPTER 6&7 x RAY physics
Total questions: 12
Worksheet time: 6mins
In a general radiography tube head assembly, added filtration comes in the form of another 0.5 mm Al placed between the target window and the top of the collimator
True
False
Which of the following factors affect or influences beam quantity?
kVp.
Distance.
Filtration.
1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3
The total number of x-ray photons in a beam is referred to as the:
x-ray quality
x-ray quantity
x-ray number
x-ray beam
The majority of the x-ray photons produced at the target are:
characteristic photon
brems photons
compton photons
photoelectric photons
The average energy of a brems photon is ______ of the kVp selected at the control panel.
one half
one third
two thirds
is the same energy
During the bremsstrahlung interaction, the filament electron
knocks out an inner-shell electron
knocks out an outer-shell electron
is attracted to and absorbed by the nucleus
is attracted to the nucleus but not absorbed
Characteristic x-ray photons result
A. when an outer-shell electron is knocked out
B. when an inner-shell electron is knocked out
C. when outer-shell electrons fill the vacancy in an inner shell
A and B only
A, B and C
A and D
B and C only
filament electron knocks out a K shell electron from the tungsten atom, it results in a _____________ interaction.
a 39.5 keV energy x-ray photon
a brems x-ray photon
a characteristic x-ray photon
a coherent x-ray photon
At the anode target, ___ of the energy from filament electrons is lost as heat and ___ will result in x-ray production.
99%, 1%
1%; 99%
0%; 100%
electrons from the cathode streams across the tube to slam into the target the x-rays are produced by which interactions:
coherent and bremsstrahlung interactions
characteristic and bremsstrahlung interactions
characteristics and photoelectric interactions
To increase the quantity of radiation by adjusting the kVp to the same level as doubling the mAs, increase kVp by a factor of
15%
10%
30%
25%
As the distance increases, the beam quantity reaching a specific area:
decreases
increases
