Radiographic Noise
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| Define radiographic noise. | Deterioration of the radiographic image.
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| What is 2nd definition of radiographic noise? | Random background information detected but not contributing to image quality.
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| Causes of radiographic noise. | Number of x-rays used to expose patient or mAs; limited absorption efficiency of x-rays in intensifying screens; randomness of x-rays to light conversion process
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| Define radiographic mottle. | Given to nonuniform or nonhomogenous appearance of the recorded image, more commonly associated with high-speed recording systems.
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| Film Graininess Mottle | Attributed to the random distribution of silver halide grains in emulsion.
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| Screen Structure | Attributed to phosphor crystal size and concentration thickness of active layer.
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| Quantum Mottle | Attributed to random absorption.
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| Spatial Resolution | Ability to produce an accurate and clear image.
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| How is spatial resolution measured? | In line pairs
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| What is the name of the test pattern? | Line Pair Test Pattern
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Created by:
rad1958tech
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