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RADT 1725 FINAL EXAM QUESTION WITH CORRECT ANSWERS
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Overcoat - Answer-1 Emulsion - Answer-2 Adhesive Layer - Answer-3 Base - Answer-4 Intensification Factor (IF) - Answer-Because screens are used to reduce patient dose, one characteristic is the magnitude of dose reduction. This property is called the ____________ and is a measure of the...

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  • October 9, 2024
  • 62
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Registered Drug And Alcohol Technician
  • Registered Drug And Alcohol Technician

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RADT 1725 FINAL EXAM QUESTION
WITH CORRECT ANSWERS
Overcoat - Answer-1

Emulsion - Answer-2

Adhesive Layer - Answer-3

Base - Answer-4

Intensification Factor (IF) - Answer-Because screens are used to reduce patient dose,
one characteristic is the magnitude of dose reduction. This property is called the
____________ and is a measure of the speed of the screen.

Screen Speed - Answer-__________ is a relative number that describes how efficiently
x-rays are converted into light.

Increases. - Answer-As x-ray tube potential is increased, the IF _______.

Speckled Background - Answer-Image noise appears on a radiograph as a
___________. It occurs most often when fast screens and high-kVp techniques are
used. Noise reduces image contrast.

Noise - Answer-Higher conversion efficiency results in increased _______.

Spatial Resolution - Answer-_________ refers to how small an object can be imaged.

Contrast Resolution - Answer-_______ refers to the ability to image similar tissues as
the liver and pancreas or gray matter and white matter.

Spatial Resolution - Answer-Generally, conditions that increase the IF reduce
____________.

Low-Z Front - Answer-1

Contact Felt - Answer-2

Base - Answer-3

Phosphor - Answer-4

Emulsion - Answer-5

,Base - Answer-6

Emulsion - Answer-7

Phosphor - Answer-8

Base - Answer-9

Contact Felt - Answer-10

High-Z back - Answer-11

Cassette - Answer-The _______ is the rigid holder that contains the film and the
radiographic intensifying screens.

Microswitch - Answer-1

Feed Tray - Answer-2

Crossover Racks - Answer-3

Tanks - Answer-4

Developing - Answer-5

Fixing - Answer-6

Washing - Answer-7

Drying Chamber - Answer-8

Receiving Bin - Answer-9

Motor and Drive Chain - Answer-10

Blower - Answer-11

Film - Answer-1

Guide Shoe - Answer-2

Master Roller - Answer-4

Trailing Edge - Answer-5

Leading Edge - Answer-6

,Planetary Roller - Answer-7

The thickness and rigidity of the base. - Answer-What is the difference between x-ray
film and photographic film?

Sensitivity Center - Answer-What characteristic of emulsion makes it x-ray sensitive?

1.0um - Answer-What is the size of the silver halide size?

Silver Halide and Gelatin - Answer-What does emulsion consists of?

Polyester - Answer-What is the base of radiographic film made of?

True - Answer-True or False: Direct exposure films contain thicker emulsion.

Base and emulsion - Answer-What are the two main parts of radiographic film?

Sensitivity Center - Answer-Where does the metallic silver accumulate?

Sulfide - Answer-The sensitivity center is usually silver _________.

Image Forming and Remnant X-rays - Answer-What type of radiation exiting the patient
is responsible for the latent image formation?

Silver Halide Crystal Concentration - Answer-The difference between fast film and slow
film is:

Green - Answer-Orthochromtic film is sensitive to _______ light.

Red - Answer-When rare earth screens are used what type of safelight is required?

68 degrees or below; Excessive heat could result in loss of contrast. - Answer-What is
the temperature radiographic film should be stored at?

True - Answer-True or False: As speed increases, so does noise.

Fluorescence and Phoshprescence - Answer-What two types of luminescence
(emission of light after stimulation) involve outershell electrons?

Light emitted while the phosphor is stimulated. - Answer-What is fluorescence?

After glow, it reduces detail/resolution. - Answer-What is phosphorence?

Speed
Size

, Film contrast
Distribution - Answer-What are 4 performance characterisitcs of film?

Total Darkness - Answer-What condition is necessary for film manufacturing?

Contrast
Speed
Crossover
Spectral matching
Reciprocity
Safelights - Answer-Six characteristics when selecting screen film:

Exposure of the emulsion caused by light from opposite side of intensifying screen. -
Answer-What is crossover?

1. size of the phosphors.
2. thickness of the phosphors.
3. composition of the phosphors.
4. concentration of the phosphors. - Answer-Screen characteristics are determined by
the:

Transport - Answer-The rollers in the automatic processor are part of the ____ system.

1965 - Answer-Eastman Kodak introduced 90 second automatic processing in ______.

Microswitch - Answer-Replenishment of fixer and development are controlled by the:

Fixer tank - Answer-What is the second tank in an automatic processor?

Hold halide crystals - Answer-The main purpose of the gelatin emulsion in radiographic
film is to:

1 hour - Answer-How long did manual processing of radiographs take?

Developer Tank - Answer-The temperature of the ______ is the most critical in
processing film.

Static Artifacts - Answer-Storing film in very low humidity conditions can cause:

Detective Quantum Efficiency (DQE) - Answer-The ability of an intensifying screen to
absorb x rays is called:

After stimulation - Answer-A phosphorescent material emits light:

Density - Answer-If a film is used without spectral matching, the result is a reduction in:

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