Retake quiz

Question 1

When a filament knocks out a K shell electron from the Tungsten atom, it leads to:
- none of these
- brems x-ray photon
- a 39.5 keV energy x-ray photon
- a characteristic x-ray photon

Answer 1

• a characteristic x-ray photon

Question 2

When it does interact with the Image receptor, the Compton scatter photon contributes no useful information because:
- it’s energy is too low
- it had changed directions
- none of these
- it’s energy is too high

Answer 2

• it has changed directions

Question 3

Coherent scattering involves:
- ionization
- all of these
- an x-ray photon with high energy
- an x-ray photon with low energy

Answer 3

• an x-ray photon with low energy

Question 4

The primary source of radiation exposure to the radiographer who is in the room during an exposure is:
- hard to determine; it depends on the procedure being done
- from scatter from the table
- from scatter from the Image receptor
- from scatter from the patient

Answer 4

• from scatter from the patient

Question 5

The majority of the x-ray photons produced are:
- photons with energy higher than 70keV
- photons with energy higher than 80 keV
- brems photons
- characteristic photons

Answer 5

• brems photons

Question 6

The energy of the characteristic x-ray photon depends on:
- the shell of the electron that is dropping into the vacancy
- the energy level of the filament electron
- all of these
- the binding energy of the inner-shell electron

Answer 6

• all of these

Question 7

When filament electron enter the anode target, they mostly interact with:
- outer shell electrons of Tungsten atoms
- outer shell electrons of copper atoms
- inner shell electrons of copper atoms
- inner shell of electrons of Tungsten atoms

Answer 7

• outer shell electrons of Tungsten atom

Question 8

Photoelectric interactions:
- negatively affect radiographic image quality
- all of these
- contribute significantly to patient dose
- should be reduced as close to 0 events as possible

Answer 8

• contribute significantly to patient dose

Question 9

To minimize occupational exposure, the technologist should:
- never go in the x-ray room during a procedure
- wear protective apparel (lead aprons, gloves, etc.) When in the room during imaging
- wear protective apparel (lead aprons, gloves, etc.) When in the room during imaging and standing close to the patients head
- stand close to the patients head

Answer 9

• wear protective apparel (lead aprons, gloves, etc.) When in the room during imaging

Question 10

The energy of the brems photon depends on:
- the strength of the attraction between the electron and nucleus
- the original energy of the filament electrons
- the energy of the filament electron as it leaves the Tungsten atoms
- all of these

Answer 10

• all of these

Question 11

X-ray are produced by:
- uncharacteristic interactions
- characteristic and bremsstrahlung interactions
- bremsstrahlung interactions
- characteristic interactions

Answer 11

• characteristic and bremsstrahlung interactions

Question 12

The fog seen on the radiographic image is the result of:
- Compton interaction
- classical scattering
- photoelectric interactions
- coherent scattering

Answer 12

• Compton interaction

Question 13

Classical scattering are also known as:
- Compton scattering
- Thomson and coherent scattering
- coherent scattering
- Thomson scattering

Answer 13

• Thomson and coherent scattering

Question 14

As the distance increases, the beam quantity reaching a specific area:
- decreases
- doubles
- increases
- stays the same

Answer 14

• decreases

Question 15

Which of the following is the primary factor controlling quantity?
- distance
- mAs
- filtration
- kVp

Answer 15

• mAs

Question 16

Radiation interaction with air is more likely to be ____ resulting in theat area of the Image being darker:
- attenuated
- transmitted
- absorbed
- scattered

Answer 16

• transmitted