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The characteristic most often used to describe the energy
of an X-ray beam is its:
a. velocity
b. space charge
c. wavelength
d. amplitude - ANSWER-c. wavelength
grid cap - ANSWER-A grid mounted in a frame that can be
attached to the front of an image receptor (IR) for mobile
radiography and other special applications.
,An X-ray beam that has been attenuated by matter is
called
a. remnant radiation
b. primary radiation
c. secondary radiation
,d. scatter radiation - ANSWER-a. remnant radiation
image intesifier - ANSWER-An electronic device used to
produce a fluoroscope image with a low radiation
exposure. A beam of x-rays passing through the patient is
converted by a special vacuum tube into a
pattern of electrons. The electrons are accelerated and
concentrated onto a small fluorescent screen, where they
present a bright image that is usually displayed on a
television monitor.
,A device used to indicate the location of the radiation filed
and to control its size is called a:
a. grid
b. collimator
c. transformer
d. control console - ANSWER-b. collimator
image receptor (IR) - ANSWER-A device that changes the
x-ray beam into a visible image. An image receptor may
be a radiographic film and cassette, a phosphorescent
screen (used in fluoroscopy or computed radiography), or
a special detector placed in a table or upright bucky
diaphragm (used in direct digital radiography).
, An X-ray machine that permits viewing of the X-ray image
in motion in real time is called a:
,a. control console
b. fluoroscope
c. collimator
d. buckey - ANSWER-b. fluoroscope
latent image - ANSWER-The unobservable image stored
in the silver halide emulsion of film; it is made visible by
processing.
The prime factor controls the wavelength of the x-ray
beam is:
A. milliamperage