Dental Radiology- Ch. 2: Radiation
Physics Exam with Complete Solutions
Absorption ✔️Correct Ans-Refers to the total transfer of energy from the x-ray photon to the
atoms of matter through which the X-ray beam passes.
- Depends on the energy of the x-ray beam and composition of the absorbing matter or tissues
Photoelectric Effect ✔️Correct Ans-Identify the interaction with X-Radiation:
An x-ray photon collides with a tightly bound, inner-shell electron and gives up all its energy to
eject the electron from its orbit.
- Photon ceases to exist
- The Ejected electron is absorbed by other atoms
Photoelectron ✔️Correct Ans-What is the name of the electron ejected during the photoelectric
effect?
Coherent Scatter ✔️Correct Ans-Identify the interaction with X-Radiation:
- X-ray photon has its path altered by matter
- A low energy photon interacts with an outer shell electron
,- No change in the atom occurs and x-ray proton of scattered radiation is produced
- X-ray proton scattered in a different direction than incident proton
- X-ray proton remains unmodified, just changes direction.
Compton Scatter ✔️Correct Ans-Identify the interaction with X-Radiation:
- The x-ray photon collides with a tightly bound, outer shell electron and gives up part of its
energy to eject the electron from its orbit
- The x-ray photon loses energy and continues in a different direction at a lower energy
- Ejected electron also known as recoil electron
- Newer, weaker photon interacts with other atoms until all energy is gone
Compton Scatter ✔️Correct Ans-The most common possibility of x-radiation to result when x-
rays interact with matter. 62%
Compton electron ✔️Correct Ans-What is the name of the electron ejected during compton
scatter?
, Coherent Scatter ✔️Correct Ans-
Compton Scatter ✔️Correct Ans-
Photoelectric Effect ✔️Correct Ans-
No Interaction ✔️Correct Ans-Which interaction with x-radiation has
- No scatter
- No ionization
Absorption/ Photoelectric Effect ✔️Correct Ans-Which interaction with x-radiation has
- No scatter
- Ionization Occurs
Compton Scatter ✔️Correct Ans-Which interaction with x-radiation has
- Scatter
- Ionization
Coherent Scatter ✔️Correct Ans-Which interaction with x-radiation has
- Scatter
- No Ionization
Physics Exam with Complete Solutions
Absorption ✔️Correct Ans-Refers to the total transfer of energy from the x-ray photon to the
atoms of matter through which the X-ray beam passes.
- Depends on the energy of the x-ray beam and composition of the absorbing matter or tissues
Photoelectric Effect ✔️Correct Ans-Identify the interaction with X-Radiation:
An x-ray photon collides with a tightly bound, inner-shell electron and gives up all its energy to
eject the electron from its orbit.
- Photon ceases to exist
- The Ejected electron is absorbed by other atoms
Photoelectron ✔️Correct Ans-What is the name of the electron ejected during the photoelectric
effect?
Coherent Scatter ✔️Correct Ans-Identify the interaction with X-Radiation:
- X-ray photon has its path altered by matter
- A low energy photon interacts with an outer shell electron
,- No change in the atom occurs and x-ray proton of scattered radiation is produced
- X-ray proton scattered in a different direction than incident proton
- X-ray proton remains unmodified, just changes direction.
Compton Scatter ✔️Correct Ans-Identify the interaction with X-Radiation:
- The x-ray photon collides with a tightly bound, outer shell electron and gives up part of its
energy to eject the electron from its orbit
- The x-ray photon loses energy and continues in a different direction at a lower energy
- Ejected electron also known as recoil electron
- Newer, weaker photon interacts with other atoms until all energy is gone
Compton Scatter ✔️Correct Ans-The most common possibility of x-radiation to result when x-
rays interact with matter. 62%
Compton electron ✔️Correct Ans-What is the name of the electron ejected during compton
scatter?
, Coherent Scatter ✔️Correct Ans-
Compton Scatter ✔️Correct Ans-
Photoelectric Effect ✔️Correct Ans-
No Interaction ✔️Correct Ans-Which interaction with x-radiation has
- No scatter
- No ionization
Absorption/ Photoelectric Effect ✔️Correct Ans-Which interaction with x-radiation has
- No scatter
- Ionization Occurs
Compton Scatter ✔️Correct Ans-Which interaction with x-radiation has
- Scatter
- Ionization
Coherent Scatter ✔️Correct Ans-Which interaction with x-radiation has
- Scatter
- No Ionization
