LRA 211 Week 2 and Week 3 Quiz
1. X-rays are produced by: Characteristic and bremsstrahlung interactions
2. When filament electrons enter the anode target, they mostly
interact with: -
Outer shell electrons of tungsten atoms
3. When a filament electron knocks out a K shell electron from the
tungsten atom, it leads to: A characteristic x-ray photon
4. The energy of the characteristics x-ray photon depends on: All of
the Above (The binding energy of the binding shell electron, the energy level of the filament
electron, and the shell of the electron that is dropping into the vacancy)
5. A filament electron removes a K shell electron and an M shell
electron fills the
vacancy. The K shell binding energy is 69.5 keV and the M shell
binding energy is 2.8 keV. What is the energy of the K-characteristic
photon produced?: 66.7 keV
6. Bremsstrahlung means: Breaking radiation
7. The energy of the brems photon depends on: All answer choices are correct
(The energy of the filament electron as it leaves the tungsten atom, the strength of the attraction between
the electron and the nucleus, the original energy of the filament electron)
8. The majority of the x-ray photons produced are: Brems photons
9. Which of the following is the primary factor controlling quantity:
mAs
10. As the distance increases, the beam quantity reaching a
specific area: Decreases
11. Classic interactions are also known as: Thomson and Coherent scattering
12. Coherent scattering involves: An x-ray photon with low energy
13. With Compton scattering, the incident photon: loses up to 1/3 of its
energy
14. Secondary protons produced during a photoelectric
interaction: Contribute to patient dose
15. When it does interact with the image receptor, the Compton
scatter photon contributes no useful information because: It has changed
directions
16. The fog seen on the radiograph image is the result of: Compton
interactions
1/
6
, LRA 211 Week 2 and Week 3 Quiz
17. The primary source of radiation exposure to the radiographer
who is in the room during an exposure is: From scatter from the patient
18. To minimize occupation exposure the technologist should: Wear
protective apparel, lead apron, gloves, etc. when in the room during imaging
19. Photoelectric interactions: Contribute significantly to patient dose
2/
6
1. X-rays are produced by: Characteristic and bremsstrahlung interactions
2. When filament electrons enter the anode target, they mostly
interact with: -
Outer shell electrons of tungsten atoms
3. When a filament electron knocks out a K shell electron from the
tungsten atom, it leads to: A characteristic x-ray photon
4. The energy of the characteristics x-ray photon depends on: All of
the Above (The binding energy of the binding shell electron, the energy level of the filament
electron, and the shell of the electron that is dropping into the vacancy)
5. A filament electron removes a K shell electron and an M shell
electron fills the
vacancy. The K shell binding energy is 69.5 keV and the M shell
binding energy is 2.8 keV. What is the energy of the K-characteristic
photon produced?: 66.7 keV
6. Bremsstrahlung means: Breaking radiation
7. The energy of the brems photon depends on: All answer choices are correct
(The energy of the filament electron as it leaves the tungsten atom, the strength of the attraction between
the electron and the nucleus, the original energy of the filament electron)
8. The majority of the x-ray photons produced are: Brems photons
9. Which of the following is the primary factor controlling quantity:
mAs
10. As the distance increases, the beam quantity reaching a
specific area: Decreases
11. Classic interactions are also known as: Thomson and Coherent scattering
12. Coherent scattering involves: An x-ray photon with low energy
13. With Compton scattering, the incident photon: loses up to 1/3 of its
energy
14. Secondary protons produced during a photoelectric
interaction: Contribute to patient dose
15. When it does interact with the image receptor, the Compton
scatter photon contributes no useful information because: It has changed
directions
16. The fog seen on the radiograph image is the result of: Compton
interactions
1/
6
, LRA 211 Week 2 and Week 3 Quiz
17. The primary source of radiation exposure to the radiographer
who is in the room during an exposure is: From scatter from the patient
18. To minimize occupation exposure the technologist should: Wear
protective apparel, lead apron, gloves, etc. when in the room during imaging
19. Photoelectric interactions: Contribute significantly to patient dose
2/
6
