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Radiation Protection Ch 3 With Answers
Exit or image formation, radiation is composed of which of
the following? - ANSWER -Noninteracting and small
angle scattered photons (pg 43)
Which of the following contributes significantly to the
exposure of the radiographer - ANSWER -Compton
clscattered photons (pg 54)
Which of the following defines attenuation -
ANSWER -Absorption and scatter (pg 42)
In the radiographic kilovoltage range, which of the
following structures undergoes the most photoelectric
absorption - ANSWER -Compact bone (pg 50)
In which of the following X-ray interactions with matter is
the energy of the incident photon partially absorbed -
ANSWER -Compton (pg 57)
When a high atomic number solution is either ingested or
injected into human tissue or a structure to visualize it
during an imaging procedure, which of the following
occurs - ANSWER -Photoelectric interaction
becomes significantly enhanced, leading to an increase in
the absorbed dose in the body tissues or structures that
contain the contrast medium (pg 54)
Which of the following characteristics primarily
differentiates the probability of occurrence of the various
interactions of x-radiation with human tissue -
ANSWER -Energy of the incoming photon (pg 41)
Which of the following influences attenuation -
ANSWER -Effective atomic number of the absorber,
mass density, thickness of the absorber (pg 50-52)
A decrease in contrast of the image by adding an
additional, unwanted exposure (radiographic fog) results
from which of the following interactions between x-
radiation and matter - ANSWER -Compton
scattering (pg 55)
The interactions of X-ray photons with any atoms of
biological matter are - ANSWER -Random and
therefore the effects of such interactions cannot be
predicted with certainty
