data from a film exposed with a
sketch a graph showing how film
density increases with increasing exposure.
Give two names for the curve which you have just drawn.
and label three distinct segments of the curve.
the characteristic or feature of the curve that determines the amount of
image contrast that will be produced.
the parameter film contrast factor
and show how it relates to the film characteristic curve.
the two parameters gamma and average
gradient and show how they are related to the film contrast
the concept of film latitude and its
the general relationship between latitude and
maximum film contrast.
the basic difference between a latitude film
and a contrast film.
which type of film is used for chest radiography
three characteristic curves which compare the following processing
two undesirable effects resulting from under
processing of radiographic film.
two undesirable effects caused by over processing
of radiographic film.
the general appearance of a fogged film.
four potential sources of fogging that can
occur in a radiology facility.
Physical Principles of Medical Imaging, 2ndEd. Perry
Sprawls. Medical Physics