Test Bank for Radiographic Imaging and Exposure 6th Edition by Fauber Latest Update 2025/2026

Test Bank for Radiographic Imaging and Exposure 6th Edition by Fauber The scattered photon can strike the image receptor, but it will not provide any useful anatomic information. REF: p.45 13. Interactions of high-energy x-rays (energies beyond the diagnostic range) with tissue include: a. pair production. b. coherent scattering. c. photodisintegration. d. A and B. e. A and C. ANS: E Both pair production and photodisintegration are interactions between x-rays and tissue that involve x-ray photons with energies higher than the diagnostic range. REF: p.46 14. Interactions of low-energy x-rays (energies below the diagnostic range) with tissue include: a. pair production. b. coherent scattering. c. photodisintegration. d. A and B. e. A and C. ANS: B Coherent scattering occurs with very-low-energy x-rays and results in the incoming x-ray photon changing direction T w E it S h T no B l A o N ss K o S f E en L e L rg E y. R.COM REF: p.46 15. The x-ray beam that leaves the patient in the direction of the image receptor is often referred to as: a. primary radiation. b. remnant radiation. c. absorbed radiation. d. scattered radiation. ANS: B Remnant radiation, which consists of both transmitted and scatter radiation, exits the patient in the direction of the image receptor. REF: p.49 16. If scattered photons are absorbed within the anatomic tissue, they: a. contribute to the radiation exposure of the patient. b. do not contribute any useful information about the anatomic part of interest. c. contribute useful information about the anatomic part of interest. d. A and B. e. A and C. ANS: D If a scattered photon strikes the image receptor, it will not provide any useful anatomic information and will increase the radiation exposure to the patient. REF: p.46 17. The amount of x-ray beam attenuation is affected by the: a. thickness of the body part. b. atomic number of the atoms in the tissue. c. tissue density. d. energy of the x-ray beam. e. A and B only. f. all of the above. ANS: F The amount of x-ray beam attenuation is affected by the thickness of the anatomic part, the atomic number of the atoms contained within it, its tissue density, and the energy of the x-ray beam. REF: p.47 18. An increased part thickness results in: a. increased beam attenuation. b. decreased beam attenuation. c. no effect on beam attenuation. ANS: A Increasing the thickness of a given anatomic tissue increases beam attenuation by either absorption or scattering. REF: p.47 19. A body tissue with an increased tissue density results in: a. increased beam attenuation. b. decreased beam attenuation. c. no effect on beam attenuation. ANS: A Increasing the tissue density increases beam attenuation by either absorption or scattering. REF: p.48 20. Unwanted exposure to the IR due to scatter radiation is called: a. latent. b. manifest. c. fog. d. cloudiness. ANS: C Fog is the result of scattered photons interacting with the image receptor; it is additional exposure without any useful information. REF: p.50 21. The image occurs first on the image receptor, and the image occurs following proper image development/processing. a. manifest, latent b. invisible, latent c. visible, manifest d. latent, manifest ANS: D The latent (or invisible) image occurs first, and after processing, the manifest (visible) image appears. REF: p.51 22. At higher kilovoltage, photon interactions occur, resulting in transmission. a. more, increased b. more, less c. fewer, increased d. fewer, less ANS: C At higher kilovoltage (energy), fewer photon interactions occur, resulting in more x-ray photons being transmitted. REF: p.47 23. Beam attenuation with a higher-energy x-ray beam. a. increases b. decreases c. stays the same ANS: B Beam attenuation decreases with a higher-energy x-ray beam and increases with a lower-energy x-ray beam. REF: p.49 24. Brightness/density is a quality related to the of the radiographic image. a. visibility of structures b. accuracy of structural lines c. spatial resolution d. B and C ANS: A Brightness/density is a quality related to the visibility of anatomic structures of the radiographic image. REF: p.52 25. Contrast is a quality related to the of the radiographic image. a. visibility of structures b. accuracy of structural lines c. spatial resolution d. B and C ANS: A Contrast is a quality related to the visibility of anatomic structures of the radiographic image. REF: p.52 26. Muscle tissue absorbs more radiation than fat tissue because muscle tissue has a: a. higher atomic number. b. lower atomic number. c. higher tissue density. d. lower tissue density. ANS: C Muscle and fat tissues have similar atomic numbers. The reason the muscle tissue absorbs more radiation is due to its increased tissue density. REF: p.48 27. The amount of luminance of a display monitor is: a. density. b. image contrast. c. brightness. d. spatial resolution. ANS: C Brightness is the amount o REF: p.52 f T lu E m S in T an B c A e N o K f a S E 28. The overall blackness on the processed film image is: a. density. b. image contrast. c. brightness. d. spatial resolution. ANS: A d is L p L la E y R m . o C ni O tor. M Density is the overall blackness on the film image that has been chemically processed. REF: p.52 29. Difference in the brightness levels or densities is: a. density. b. image contrast. c. brightness. d. spatial resolution. ANS: B Image contrast is the difference in brightness levels or densities in the radiographic image. REF: p.53 30. An image that has excessive brightness or insufficient density is considered: a. diagnostic. b. unacceptable. c. acceptable. d. excellent. ANS: B Excessive brightness or too little density means that the anatomy of interest cannot be seen; this image is unacceptable and must be repeated. REF: p.53 31. Subject contrast is dependent on the: a. energy of the x-ray beam. b. quantity of radiation used. c. absorption characteristics of the tissue being imaged. d. A and B. e. A and C. ANS: E Subject contrast depends on the x-ray beam energy and the tissue characteristics. REF: p.54 32. The number of shades of gray that can be displayed by a computer system is: a. scale of contrast. b. short scale. c. long scale. d. gray scale. ANS: D Gray scale is the term for the computer’s shades of gray that can be displayed. REF: p.55 33. A radiographic image with a large number of similar densities that have small differences between them: a. appears gray. b. has long scale contrast. c. has low contrast. d. all of the above. ANS: D Low-contrast images display a greater number of gray shades but smaller differences among them. REF: p.55 34. The ability of an image receptor to distinguish between objects with similar subject contrast is: a. temporal resolution. b. spatial resolution. c. contrast resolution. d. none of the above. ANS: C Contrast resolution is used to describe the IR’s ability to distinguish between objects having similar image contrast. REF: p.55 35. The quality of a radiographic image depends on: a. brightness—visibility of anatomic structures. b. accuracy of the recorded anatomic structural lines. c. contrast—visibility of anatomic structures. d. A and B. e. A, B, and C. ANS: E The quality of radiographic image depends on both the visibility of anatomic structures (brightness and contrast) and the accuracy of recorded anatomic structural lines (sharpness). REF: p.58 36. The smallest object that can be detected in an image is the: a. temporal resolution. b. spatial resolution. c. contrast resolution. d. none of the above. ANS: B Spatial resolution refers to the smallest object that can be detected on an image. REF: p.57 37. The accuracy of the anatomic structural lines recorded in the radiographic image is determined by the: a. temporal resolution. b. spatial resolution. c. contrast resolution. d. none of the above. ANS: B The accuracy of the anatomic structural lines recorded in the radiographic image is determined by its spatial resolution. REF: p.57 38. An increase in the amount of unsharpness recorded on the image has what effect on the visibility of anatomic structures? a. Increased contrast of anatomic structures b. Decreased contrast of anatomic structures c. Increased overall visibility d. Decreased overall visibility e. A and C f. B and D ANS: F An increase in the amount of unsharpness recorded on the image decreases the contrast of small anatomic structures, reducing the overall visibility of the structural lines. REF: p.58 39. Radiographic misrepresentation of the size or shape of the anatomic structure being imaged is: a. magnification. b. elongation. c. foreshortening. d. all of the above. ANS: D Size or shape distortion includes magnification, elongation, and foreshortening. REF: p.59 40. Shape distortion includes: a. magnification. b. elongation. c. size distortion. d. all of the above. ANS: B Shape distortion includes e REF: p.59 41. Size distortion is affected by: 1. SID. 2. OID. 3. tube angulation. a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3 ANS: A lo T n E ga S ti T o B n A an N d K f S or E es L h L or E te R n . in C g. O M Size distortion, or magnification, is affected by both SID and OID. Tube angulation affects shape distortion. REF: p.59 42. As seen on the radiographic image, scatter radiation: a. decreases the visibility of anatomic structures. b. increases the visibility of anatomic structures. c. has no effect on the visibility of anatomic structures. d. increases image contrast. ANS: A Scatter radiation results in fog, decreasing the visibility of anatomic structures. REF: p.60 43. An increase in noise on the radiographic image: a. indicates greater quantum mottle. b. is more likely with digital imaging than with film-screen. c. is the result of fewer than appropriate x-ray photons reaching the IR. d. all of the above. ANS: D An increase in the brightness/density fluctuations on the radiographic image means there is more quantum mottle (film) or quantum noise (digital). This is the result of too few photons exposing the IR and is more likely with digital imaging. REF: p.61 44. A fewer amount of photons reaching the IR has what effect on the formation of the image? a. The visibility of quantum noise is increased on the digital image. b. The visibility of quantum noise is decreased on the digital image. c. The visibility of quantum mottle is increased on the digital image. d. The visibility of quantum mottle is decreased on the digital image. ANS: A The fewer the photons reaching the image receptor to form the image, the greater the visibility of quantum noise on the digital image. REF: p.61 45. An unwanted image on a radiograph is: a. excessive image contrast. b. the result of overexposure. c. an artifact. d. none of the above. ANS: C An artifact is an unwanted image seen on a radiograph. REF: p.62 46. Which of the following artifacts are common to both film-screen and digital imaging? 1. Jewelry covering part of the anatomy being imaged 2. Fog due to scatter 3. Quantum noise/mottle a. 1 and 2 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 3 ANS: D Jewelry in the area of interest, fog, and quantum noise/mottle are artifacts that can be seen on both film and digital images. REF: p.62 47. As compared to digital imaging, film-screen imaging has: a. a wider dynamic range. b. a narrower dynamic range. c. the same dynamic range. d. no dynamic range. ANS: B One of the drawbacks of film-screen imaging is that it has a more narrow dynamic range than digital imaging. REF: p.63 48. Spatial resolution is improved with: a. increased pixel size. b. increased pixel pitch. c. increased pixel density. d. increased pixel bit depth. ANS: C Spatial resolution is improved with an increased number of pixels per unit area, or pixel density. Larger pixel size and pitch reduce spatial resolution, and bit depth doesn’t have any effect. REF: p.57 49. With radiographic imaging, anatomic tissues, such as bone, that absorb most of the radiation result in that area of the image being: a. more blurred. b. sharper. c. darker (more density). d. lighter (less density). ANS: D Bone, absorbing most of the primary radiation, results in fewer photons reaching the IR and a lighter area on the image. REF: p.47 50. Due to , repeats are often needed with film-screen imaging, because the image is too dark or light. a. chemical processing b. the use of intensifying screens c. its narrow dynamic range d. its wide dynamic range ANS: C Due to its narrow dynamic range, repeats are often needed with film-screen imaging, because the image is too dark or light. REF: p.63 TRUE/FALSE 1. During attenuation of the x-ray beam, the photoelectric effect is responsible for the total absorption of the incoming x-ray photon. ANS: T During attenuation of the x-ray beam, the photoelectric effect is responsible for the total absorption of the incoming x-ray photon. REF: p.43 2. The photoelectric effect is dependent on both the energy of the x-ray photon and the composition of the anatomic tissue. ANS: T The energy of the x-ray photon must be at least equal to the binding energy of the inner shell electron of the atom of anatomic tissue being imaged. REF: p.44 3. The Compton interaction can occur within all diagnostic x-ray energies. ANS: T While Compton interactions can occur in all diagnostic x-ray energies, the percentage of Compton interactions incre REF: p.45 a T se E s S at T h B ig A h N er K k S il E ov L o L lt E ag R e . s. C OM 4. Compton interactions are more likely to occur in soft tissue as compared to bone. ANS: F The probability of a Compton interaction occurring depends on the energy of the incoming photon. Compton interactions are not dependent on the composition of the anatomic tissue. REF: p.45 5. Approximately 20% of the primary x-ray beam actually reaches the image receptor. ANS: F Less than 5% of the primary x-ray beam actually reaches the image receptor. REF: p.51 6. X-ray absorption is more likely in tissues with a lower atomic number. ANS: F X-ray absorption is more likely in tissues with a higher atomic number. REF: p.46 7. Beam attenuation is increased with a higher-energy x-ray beam. ANS: F Beam attenuation is decreased with a higher-energy x-ray beam. REF: p.47 8. An area of increased brightness on a display monitor will show decreased density on a film image. ANS: T Increased brightness and decreased density (overall blackness) are the same. REF: p.50 9. The primary factor that affects film-screen density is the quantity of radiation reaching the IR. ANS: T The amount, or quantity, of the radiation reaching the IR is the primary determinant of film-screen density. REF: p.53 10. The abdomen has low subject contrast. ANS: T The abdomen, containing o T r E ga S n T s B w A ith N v K e S ry E s L im L i E la R r . tis C s O ue M characteristics, has low subject contrast. REF: p.54 11. The highest quality radiographic image has no unsharpness. ANS: F It is impossible to create an image without any unsharpness. The highest quality radiographic image will have minimal unsharpness. REF: p.57 12. Recorded detail is the term commonly used in digital imaging to describe the accuracy of the structural lines that make up the image. ANS: F Spatial resolution is the term commonly used in digital imaging to describe the accuracy of the structural lines that make up the image. Recorded detail is used to identify that quality for film-screen imaging. REF: p.57 13. Magnification always results in reduced recorded detail.