_________________ - Correct Answers radiopaque
The process of differential absorption for image formation is the same for digital and film-screen
imaging. (T/F) - Correct Answers True
A film image with a few visible densities but great differences among them is said to have
____________________ - Correct Answers high contrast
What term is used to describe whiter than it should be? - Correct Answers Radiopaque or
Sclerosis
Three things that contribute to subject contrast? - Correct Answers tissue thickness, density and
Which of the following radiographic densities is least optically dense? - Correct Answers Metal
Bone
Water
Fat
Air
Dense items have low optical density
What two imaging properties are associated with visibility? - Correct Answers accuracy and sharpness
The _______________ and _________________ of anatomical structures and their recorded structural
lines determine the overall quality. - Correct Answers visibility and accuracy
Order optical density from least dense to most dense: - Correct Answers Air
, Fat
Water
Bone
Metal
The visible difference between adjacent radiographic densities defines _______ - Correct Answers
contrast
A radiographic image must have sufficient brightness to visualize the anatomic structures of interest.
(T/F) - Correct Answers True
Subject density and optical density are _________________ related. - Correct Answers inversely
Radiographic density which is MOST optically dense? - Correct Answers Air
Amount of density produced on a film screen is defined as ____________________ - Correct Answers
intensity of radiation exposure
Who discovered x-rays? - Correct Answers Wilhelm Conrad Roentgen
When were x-rays discovered? - Correct Answers November 8, 1895
kVp= - Correct Answers The penetrating power of the x-ray beam is controlled by varying the
Wavelength and frequency are _________ related. - Correct Answers inversely
The x-ray beam used in diagnostic imaging can be described as being ____________ - Correct Answers
Polyenergetic