QUESTIONS AND 100% CORRECT WELL
DETAILED ANSWERS|LATEST
What produces x-rays? - ANSWER characteristic and Bremsstrahlung interactions
When filament electrons enter the anode target, what do they mostly interact with? -
ANSWER Outer shell electrons of tungsten atoms
What is the result of a filament electron knocking a K-shell electron from a tungsten atom? -
ANSWER A characteristic x-ray photon
The energy of the characteristic x-ray photon is dependent on what? - ANSWER 1. The
binding energy of an inner shell electron
2. The energy level of the filament electron
3. The shell of the electron that is dropping into the newly created vacancy
Bremmstrahlung means - ANSWER braking radiation
What determines the energy of a Bremsstrahlung photon? - ANSWER 1. The original
energy of the filament electron
2. the strength of the attraction between the electron and the nucleus
1
, 3. the energy of the filament electron as it leaves the tungsten atom
The majority of x-ray photons produced in diagnostic radiology -
ANSWER Bremsstrahlung photons
What is the primary technical factor that controls quantity? - ANSWER mAs
As SID/OID increases, what happens to the beam quanitity reaching a specific area? -
ANSWER decreases
Classical interactions are also known as ___ or ___. - ANSWER Thomson scattering or
coherent scattering
What kind of x-ray photon is involved in coherent scattering? - ANSWER low-energy x-
ray photon
What happens to the energy in the incident photon from a compton scattering interaction? -
ANSWER the photon loses up to 1/3 of its energy
What happens to the secondary photons produced during a photoelectric interaction? -
ANSWER They are absorbed and therefore contribute to patient dose
What happens if compton scatter photons interact with the image receptor? -
ANSWER They contribute no useful information because they have changed directions
and interacted with the IR in the wrong place
Fog seen on a radiographic image is a result of what interaction? - ANSWER Compton
interaction
2
DETAILED ANSWERS|LATEST
What produces x-rays? - ANSWER characteristic and Bremsstrahlung interactions
When filament electrons enter the anode target, what do they mostly interact with? -
ANSWER Outer shell electrons of tungsten atoms
What is the result of a filament electron knocking a K-shell electron from a tungsten atom? -
ANSWER A characteristic x-ray photon
The energy of the characteristic x-ray photon is dependent on what? - ANSWER 1. The
binding energy of an inner shell electron
2. The energy level of the filament electron
3. The shell of the electron that is dropping into the newly created vacancy
Bremmstrahlung means - ANSWER braking radiation
What determines the energy of a Bremsstrahlung photon? - ANSWER 1. The original
energy of the filament electron
2. the strength of the attraction between the electron and the nucleus
1
, 3. the energy of the filament electron as it leaves the tungsten atom
The majority of x-ray photons produced in diagnostic radiology -
ANSWER Bremsstrahlung photons
What is the primary technical factor that controls quantity? - ANSWER mAs
As SID/OID increases, what happens to the beam quanitity reaching a specific area? -
ANSWER decreases
Classical interactions are also known as ___ or ___. - ANSWER Thomson scattering or
coherent scattering
What kind of x-ray photon is involved in coherent scattering? - ANSWER low-energy x-
ray photon
What happens to the energy in the incident photon from a compton scattering interaction? -
ANSWER the photon loses up to 1/3 of its energy
What happens to the secondary photons produced during a photoelectric interaction? -
ANSWER They are absorbed and therefore contribute to patient dose
What happens if compton scatter photons interact with the image receptor? -
ANSWER They contribute no useful information because they have changed directions
and interacted with the IR in the wrong place
Fog seen on a radiographic image is a result of what interaction? - ANSWER Compton
interaction
2
