PATIENT CARE IN RADIOGRAPHY 9TH
EDITION EHRLICH TEST BANK 2026
PREMIUM QUESTIONS WITH ANSWERS
AND RATIONALS
⩥ image intensifier. Answer: an electronic device used to produce a
fluorosopic 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.
⩥ latent image. Answer: the unobservable image stored in the silver
halide emulsion of film; it is made visible by processing
⩥ photon. Answer: the smallest quantity of electromagnetic energy. It
has no mass and no charge and travels at the speed of light. Photons can
occur in the form of light rays, x-rays, gamma rays and other
electromagnetic energies
⩥ photostimulable phosphor. Answer: crystals that store the energy of
the remnant x-ray beam and release it as light when stimulated by a laser
⩥ quantum (pl. quanta). Answer: a group or bundle of photons
, ⩥ remnant radiation. Answer: the radiation that remains after the x-ray
beam passes through an object to produce and image; same as exit
radiation
⩥ sine wave. Answer: a visual graphic of changes in the radiation field
that occur in the form of a repeating wave
⩥ space charge. Answer:
⩥ target. Answer: tungsten disk located at the electrically positive anode
end of the x-ray tube, the end opposite the filament. the smooth, hard
surface of the target is the site to which the electrons travel and is where
the x-rays are generated
⩥ trendelenburg postion. Answer: a supine position in which the
patients's head is lower than the feet
⩥ wavelegth. Answer: with respect to a sine wave, the distance between
a given point on one wave cycle and the corresponding point on the next
successive wave cycle.
⩥amplitude. Answer: with respect to a sine wave, the distance
between the peak and trough
EDITION EHRLICH TEST BANK 2026
PREMIUM QUESTIONS WITH ANSWERS
AND RATIONALS
⩥ image intensifier. Answer: an electronic device used to produce a
fluorosopic 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.
⩥ latent image. Answer: the unobservable image stored in the silver
halide emulsion of film; it is made visible by processing
⩥ photon. Answer: the smallest quantity of electromagnetic energy. It
has no mass and no charge and travels at the speed of light. Photons can
occur in the form of light rays, x-rays, gamma rays and other
electromagnetic energies
⩥ photostimulable phosphor. Answer: crystals that store the energy of
the remnant x-ray beam and release it as light when stimulated by a laser
⩥ quantum (pl. quanta). Answer: a group or bundle of photons
, ⩥ remnant radiation. Answer: the radiation that remains after the x-ray
beam passes through an object to produce and image; same as exit
radiation
⩥ sine wave. Answer: a visual graphic of changes in the radiation field
that occur in the form of a repeating wave
⩥ space charge. Answer:
⩥ target. Answer: tungsten disk located at the electrically positive anode
end of the x-ray tube, the end opposite the filament. the smooth, hard
surface of the target is the site to which the electrons travel and is where
the x-rays are generated
⩥ trendelenburg postion. Answer: a supine position in which the
patients's head is lower than the feet
⩥ wavelegth. Answer: with respect to a sine wave, the distance between
a given point on one wave cycle and the corresponding point on the next
successive wave cycle.
⩥amplitude. Answer: with respect to a sine wave, the distance
between the peak and trough
