RADIOGRAPHIC IMAGING AND EXPOSURE LATELY UPDATED
QUESTIONS AND 100% CORRECT ANSWERS ALREADY
GRADED A+|| LATEST AND COMPLETE UPDATE 2025 WITH
VERIFIED SOLUTIONS|| ASSURED PASS!!
1. Secondary photon - ANSWER-Are the binding energy differences released between
orbitals in the atom due to the cascade effect of PE
2. Stopping power - ANSWER-Refers to the matters ability to absorb or transmit phontons
3. Scattering - ANSWER-Refers the the photons change in direction after a Compton
interaction
4. Effective atomic number - ANSWER-Is the weighted average of the various elements
within the matter
5. Radiopaque - ANSWER-Has a relatively high stopping power for radiation
6. Radiolucent - ANSWER-Has a relatively low stopping power for radiation
7. SID - ANSWER-The distance from the focal spot to the image receptor
8. SOD - ANSWER-The distance from the focal spot to the closest part of the object
9. OID - ANSWER-The distance from the object to the image receptor
10. Focal Spot Size - ANSWER-The size of the area where the X-ray photons are produced on
the anode
11. Magnification Factor - ANSWER-Expresses how much increase in size the image is
portrayed as relative to the object
12. Superimposition - ANSWER-Is a type of distortion that occurs as a result of two different
objects being located within one ray path
13. Edge unsharpness - ANSWER-Is the gradient of change where two objects meet
14. Absorption unsharpness - ANSWER-The gradient of a structural edge on the image that
is due to the width of the transition zone of the object from minimal to maximal
thickness
15. Spatial resolution - ANSWER-Is the smallest level of detail of a structure that can be
differentiated from other structures by its detectable edges
16. Central ray - ANSWER-Is the ray normally in the center of the radiation field
17. Radiograph - ANSWER-Image produced on a radiation sensitive surface that
demonstrates internal structures of an object based on relative transmission of X-rays
through the object
18. Wilhelm Conrad Roentgen - ANSWER-Discovered x-rays on November 8, 1895 by
observing fluorescence.
, 19. Crookes tube - ANSWER-The type of tube Roentgen used to discover x-rays.
20. Fluorescence - ANSWER-Instantaneous production of light from the interaction of x-rays
and a compound.
21. Erythema - ANSWER-Reddening and burning of skin due to exposure to radiation.
22. Electromagnetic radiation - ANSWER-Radiation with electrical and magnetic properties
that behave like waves and particles.
23. Wavelength - ANSWER-Distance between two successive crests or troughs of a wave.
24. Frequency - ANSWER-Number of waves passing a given point per unit of time.
25. Velocity - ANSWER-Speed at which x-rays travel, equal to the speed of light.
26. Photon - ANSWER-Small, discrete bundle of energy.
27. Radiation units of measurement - ANSWER-Roentgen, Gray, Sievert, Curie, Becquerel.
28. Ionization - ANSWER-Ability to remove electrons.
29. ALARA - ANSWER-As Low As Reasonably Achievable; minimizing radiation dose.
30. Cardinal principles of radiation protection - ANSWER-Time, Distance, Shielding.
31. Cathode - ANSWER-Negatively charged electrode in the x-ray tube.
32. Anode - ANSWER-Positively charged electrode in the x-ray tube.
33. Filament - ANSWER-Part of the cathode that emits electrons when heated.
34. Focusing cup - ANSWER-Part of the cathode that surrounds the filament with a negative
charge.
35. Anode target - ANSWER-Part of the anode that is struck by electrons and produces x-
rays.
36. Rotating anode - ANSWER-Anode that rotates to dissipate heat.
37. Tube housing - ANSWER-Glass or metal enclosure that contains the x-ray tube.
38. Leakage radiation - ANSWER-X-rays that escape from the tube housing.
39. Target interactions - ANSWER-Bremsstrahlung and characteristic interactions.
40. Bremsstrahlung interaction - ANSWER-X-ray interaction where an electron is slowed
down by an atom's nucleus, creating a high-energy photon.
41. Characteristic interaction - ANSWER-X-ray interaction where an electron ejects an inner
shell electron, resulting in a cascade effect and the emission of a photon.
42. X-ray emission spectrum - ANSWER-Polyenergetic spectrum of x-ray energies.
43. Filament current - ANSWER-Electron current induced across the filament in the cathode.
44. Thermionic emission - ANSWER-Boiling off of electrons from the filament.
45. Space charge - ANSWER-Electrons liberated from the filament forming a cloud around it.
46. Tube current - ANSWER-Flow of electrons from the cathode to the anode.
47. Quantity vs Quality - ANSWER-Number of x-ray photons vs penetrating power of x-ray
photons.
48. kVp - ANSWER-Determines the speed and energy of electrons in the tube current.
QUESTIONS AND 100% CORRECT ANSWERS ALREADY
GRADED A+|| LATEST AND COMPLETE UPDATE 2025 WITH
VERIFIED SOLUTIONS|| ASSURED PASS!!
1. Secondary photon - ANSWER-Are the binding energy differences released between
orbitals in the atom due to the cascade effect of PE
2. Stopping power - ANSWER-Refers to the matters ability to absorb or transmit phontons
3. Scattering - ANSWER-Refers the the photons change in direction after a Compton
interaction
4. Effective atomic number - ANSWER-Is the weighted average of the various elements
within the matter
5. Radiopaque - ANSWER-Has a relatively high stopping power for radiation
6. Radiolucent - ANSWER-Has a relatively low stopping power for radiation
7. SID - ANSWER-The distance from the focal spot to the image receptor
8. SOD - ANSWER-The distance from the focal spot to the closest part of the object
9. OID - ANSWER-The distance from the object to the image receptor
10. Focal Spot Size - ANSWER-The size of the area where the X-ray photons are produced on
the anode
11. Magnification Factor - ANSWER-Expresses how much increase in size the image is
portrayed as relative to the object
12. Superimposition - ANSWER-Is a type of distortion that occurs as a result of two different
objects being located within one ray path
13. Edge unsharpness - ANSWER-Is the gradient of change where two objects meet
14. Absorption unsharpness - ANSWER-The gradient of a structural edge on the image that
is due to the width of the transition zone of the object from minimal to maximal
thickness
15. Spatial resolution - ANSWER-Is the smallest level of detail of a structure that can be
differentiated from other structures by its detectable edges
16. Central ray - ANSWER-Is the ray normally in the center of the radiation field
17. Radiograph - ANSWER-Image produced on a radiation sensitive surface that
demonstrates internal structures of an object based on relative transmission of X-rays
through the object
18. Wilhelm Conrad Roentgen - ANSWER-Discovered x-rays on November 8, 1895 by
observing fluorescence.
, 19. Crookes tube - ANSWER-The type of tube Roentgen used to discover x-rays.
20. Fluorescence - ANSWER-Instantaneous production of light from the interaction of x-rays
and a compound.
21. Erythema - ANSWER-Reddening and burning of skin due to exposure to radiation.
22. Electromagnetic radiation - ANSWER-Radiation with electrical and magnetic properties
that behave like waves and particles.
23. Wavelength - ANSWER-Distance between two successive crests or troughs of a wave.
24. Frequency - ANSWER-Number of waves passing a given point per unit of time.
25. Velocity - ANSWER-Speed at which x-rays travel, equal to the speed of light.
26. Photon - ANSWER-Small, discrete bundle of energy.
27. Radiation units of measurement - ANSWER-Roentgen, Gray, Sievert, Curie, Becquerel.
28. Ionization - ANSWER-Ability to remove electrons.
29. ALARA - ANSWER-As Low As Reasonably Achievable; minimizing radiation dose.
30. Cardinal principles of radiation protection - ANSWER-Time, Distance, Shielding.
31. Cathode - ANSWER-Negatively charged electrode in the x-ray tube.
32. Anode - ANSWER-Positively charged electrode in the x-ray tube.
33. Filament - ANSWER-Part of the cathode that emits electrons when heated.
34. Focusing cup - ANSWER-Part of the cathode that surrounds the filament with a negative
charge.
35. Anode target - ANSWER-Part of the anode that is struck by electrons and produces x-
rays.
36. Rotating anode - ANSWER-Anode that rotates to dissipate heat.
37. Tube housing - ANSWER-Glass or metal enclosure that contains the x-ray tube.
38. Leakage radiation - ANSWER-X-rays that escape from the tube housing.
39. Target interactions - ANSWER-Bremsstrahlung and characteristic interactions.
40. Bremsstrahlung interaction - ANSWER-X-ray interaction where an electron is slowed
down by an atom's nucleus, creating a high-energy photon.
41. Characteristic interaction - ANSWER-X-ray interaction where an electron ejects an inner
shell electron, resulting in a cascade effect and the emission of a photon.
42. X-ray emission spectrum - ANSWER-Polyenergetic spectrum of x-ray energies.
43. Filament current - ANSWER-Electron current induced across the filament in the cathode.
44. Thermionic emission - ANSWER-Boiling off of electrons from the filament.
45. Space charge - ANSWER-Electrons liberated from the filament forming a cloud around it.
46. Tube current - ANSWER-Flow of electrons from the cathode to the anode.
47. Quantity vs Quality - ANSWER-Number of x-ray photons vs penetrating power of x-ray
photons.
48. kVp - ANSWER-Determines the speed and energy of electrons in the tube current.
