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Artifacts

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Light Leaks

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Crimping Marks

After exposureBefore exposure

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Static discharge

Caused by pulling the film

quickly from between the

screens in a dry atmosphere

The appearance is lightning

like but may appear as mottled

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Static Discharge

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Chemical Marks

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Dust, Lint, Grime Marks

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Caused by the emulsion

rupturing due to excessive

temperature differences

between processing tanks

The appearance is a net like

structure or leather grain

It is a rare artifact due to the

flexible/plastic nature of modern

emulsions

Reticulation

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Reticulation

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Frilling

Caused by high temperature

in fixer or water which causes

the emulsion layer to crack

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Diffraction mottle

Occurs in a radiograph due tothe grain size or orientation of

certain materials such as

stainless steels and aluminum

The appearance is fine porosity

or Herringbone porosity

throughout the weld area on the

radiograph

It may be reduced or eliminated

by reducing the wavelength or

by changing the radiation angle

by approximately 5o

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DiffractionMottle