Question 1

Which layer of the intensifying screen is the furthest from the film and provides support and stability for the phosphor layer?

Accepted Answer

A)   Base
B)   Reflective layer
C)   Phosphor layer
D)   AdhesiveE) A) and B)
F) A) and C)

Question 2

What is the purpose of the intensifying screen?

Accepted Answer

A)   To decrease the production of scatter radiation
B)   To reduce the amount of scatter striking the film
C)   To reduce the amount of exposure to the patient
D)   A and C
E)   B and CF) C) and E)
G) B) and E)

Question 3

The greater the film speed,the number of silver halide crystals ______.

Accepted Answer

A)   increases
B)   decreases
C)   stays the sameD) A) and B)
E) A) and C)

Question 4

What is the effect of the presence of a reflective layer within the intensifying screen?

Accepted Answer

A)   Increased speed, increased recorded detail, and increased patient dose
B)   Decreased speed, increased recorded detail, and decreased patient dose
C)   Increased speed, decreased recorded detail, and increased patient dose
D)   Increased speed, decreased recorded detail, and decreased patient doseE) A) and B)
F) A) and C)

Question 5

What influences the speed of radiographic film?

Accepted Answer

A)   The amount of silver halide crystals in the emulsion
B)   The color of the dye added to the film base
C)   The size of the silver halide crystal
D)   A and CE) None of the above
F) C) and D)

Question 6

Once chemically processed,the light or clear areas on the radiographic film are:

Accepted Answer

A)   areas of overexposure.
B)   areas of exposed crystals converted to black metallic silver.
C)   areas of removed unexposed crystals from chemical processing.
D)   A and B.
E)   A and C.F) All of the above
G) C) and D)

Question 7

Which layer of the radiographic film is the active layer?

Accepted Answer

A)   Protective layer
B)   Base
C)   Phosphor layer
D)   EmulsionE) None of the above
F) C) and D)

Question 8

Compared to baseline measurements,speed and contrast indicators should not vary more than ±_____ optical density.

Accepted Answer

A)   0.05
B)   0.10
C)   0.15
D)   0.20E) A) and D)
F) B) and D)

Question 9

In film-screen imaging,___________ is the study of the relationship between the intensity of radiation exposure to a film and the amount of blackness produced after processing (density) ?

Accepted Answer

A)   densitometry
B)   penetrometry
C)   sensitometry
D)   chemical processingE) None of the above
F) All of the above C

Question 10

The radiation- and light-sensitive material used in the emulsion of radiographic film is called?

Accepted Answer

A)   Rare earth phosphors
B)   Calcium tungstate
C)   Sensitivity specks
D)   Silver halide crystalsE) A) and B)
F) B) and C)

Question 11

Which of the following is/are reducing agent(s) found in the developer solution?

Accepted Answer

A)   Phenidone
B)   Hydroquinone
C)   Ammonium thiosulfate
D)   A and BE) A) and B)
F) C) and D)

Question 12

The front or tube side of radiographic cassettes should be made of a material that:

Accepted Answer

A)   absorbs most of the x-ray beam.
B)   reduces scatter production.
C)   filters the beam.
D)   absorbs very little of the x-ray beam.E) A) and B)
F) A) and C) D

Question 13

A numerical calculation that compares the amount of light transmitted through an area of radiographic film to the amount of light originally striking (incident on) the film is the:

Accepted Answer

A)   densitometer.
B)   optical density.
C)   base plus fog.
D)   recorded detail.E) A) and C)
F) B) and D)

Question 14

When a film has emulsion coated on both sides of the base versus one side of the base,the film is referred to as:

Accepted Answer

A)   single emulsion film.
B)   double emulsion film.
C)   triple emulsion film.
D)   none of the above.E) A) and D)
F) All of the above

Question 15

The process of replacing processing chemicals with fresh chemicals is known as:

Accepted Answer

A)   recirculation.
B)   replenishment.
C)   temperature control.
D)   transport.E) C) and D)
F) All of the above

Question 16

Increasing the thickness of the intensifying screen phosphor layer:

Accepted Answer

A)   increases speed, increases recorded detail, and increases patient dose.
B)   decreases speed, increases recorded detail, and decreases patient dose.
C)   increases speed, decreases recorded detail, and increases patient dose.
D)   increases speed, decreases recorded detail, and decreases patient dose.E) A) and D)
F) A) and C)

Question 17

A radiograph with increased density may be the result of:

Accepted Answer

A)   low fixer temperature.
B)   high fixer temperature.
C)   low developer temperature.
D)   high developer temperature.E) C) and D)
F) B) and C)

Question 18

What is the term generally used to describe the emission of light from a substance as the result of stimulation by radiation?

Accepted Answer

A)   Luminescence
B)   Phosphorescence
C)   Fluorescence
D)   IncandescenceE) B) and C)
F) All of the above A

Question 19

Darkrooms should be protected from:

Accepted Answer

A)   chemical exposure.
B)   heat.
C)   ionizing radiation.
D)   all of the above.E) A) and B)
F) B) and C)

Question 20

The Gurney-Mott theory is associated with:

Accepted Answer

A)   CR latent image formation.
B)   film latent image formation.
C)   DR latent image formation.
D)   rare earth phosphor intensifying screens.E) A) and C)
F) C) and D)

Exam 5: Film-Screen Imaging

Which layer of the intensifying screen is the furthest from the film and provides support and stability for the phosphor layer?

Correct AnswerverifiedShow Answer

What is the purpose of the intensifying screen?

Correct AnswerverifiedShow Answer

The greater the film speed,the number of silver halide crystals ______.

Correct AnswerverifiedShow Answer

What is the effect of the presence of a reflective layer within the intensifying screen?

Correct AnswerverifiedShow Answer

What influences the speed of radiographic film?

Correct AnswerverifiedShow Answer

Once chemically processed,the light or clear areas on the radiographic film are:

Correct AnswerverifiedShow Answer

Which layer of the radiographic film is the active layer?

Correct AnswerverifiedShow Answer

Compared to baseline measurements,speed and contrast indicators should not vary more than ±_____ optical density.

Correct AnswerverifiedShow Answer

In film-screen imaging,___________ is the study of the relationship between the intensity of radiation exposure to a film and the amount of blackness produced after processing (density) ?

Correct AnswerverifiedC

The radiation- and light-sensitive material used in the emulsion of radiographic film is called?

Correct AnswerverifiedShow Answer

Which of the following is/are reducing agent(s) found in the developer solution?

Correct AnswerverifiedShow Answer

The front or tube side of radiographic cassettes should be made of a material that:

Correct AnswerverifiedD

A numerical calculation that compares the amount of light transmitted through an area of radiographic film to the amount of light originally striking (incident on) the film is the:

Correct AnswerverifiedShow Answer

When a film has emulsion coated on both sides of the base versus one side of the base,the film is referred to as:

Correct AnswerverifiedShow Answer

The process of replacing processing chemicals with fresh chemicals is known as:

Correct AnswerverifiedShow Answer

Increasing the thickness of the intensifying screen phosphor layer:

Correct AnswerverifiedShow Answer

A radiograph with increased density may be the result of:

Correct AnswerverifiedShow Answer

What is the term generally used to describe the emission of light from a substance as the result of stimulation by radiation?

Correct AnswerverifiedA

Darkrooms should be protected from:

Correct AnswerverifiedShow Answer

The Gurney-Mott theory is associated with:

Correct AnswerverifiedShow Answer

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C

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D

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A

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