Chapter 6 Key Terms Flashcards
Automatic exposure control (automatic exposure device)
a device programmed to terminate the radiographic exposure time
Automatic exposure device (automatic exposure control)
a device programmed to terminate the radiographic exposure time
C-arm tube suspension system
a type of radiography equipment that utilizes a c-shaped arm device to support the tube and the image receptor that allows the tube and imaging receptor to be rotated to new positions
Compression band
a piece of equipment used to restrain a patient or compress abdominal tissue
Computed tomography units
specialized radiography equipment that allows the taking of sectional images
Diagnostic
methods used to determine the source or cause of a disease, disorder, or traumatic injury
Exposure switch
a remote control device that permits current to flow through the circuit
Filament circuit
supplies the filament of the x-ray tube with properly modified power
Fixed
a piece of equipment that remains in one place and is not movable
Floor suspension system
a type of radiography unit that uses a tube support column mounted on the floor
Floor-to-ceiling suspension system
a type of radiography unit that uses a pair of rails for longitudinal positioning
Footboard
a piece of equipment used with a tilting table that allows the patient to stand when the table is upright
Handgrips
a piece of equipment that allows the patient to grip when the table is being tilted for added support and reassurance
Head units
specialized radiography equipment used to conduct cranial studies
Incoming-line current (mains)
the alternating current that is supplied to buildings; usually supplied in three-phase power cycle
Ionization chamber
an automatic exposure control device used to terminate the exposure after a desired exposure has been reached
Main circuit
supplies the x-ray tube with properly modified power
Main switch
the switch that generates the power to the x-ray tube
Mains (incoming-line current)
the alternating current that is supplied to buildings; usually supplied in three-phase power cycle
Mammography units
specialized radiography equipment for studies and imaging of the breast tissues
Milliampere-second timer
a device used in falling-load generators and some capacitor units to monitor the product of mA and time on the secondary side of the high-voltage step-up transformer
Minimum reaction (or response) time
the length of time necessary for the AEC to respond to the radiation and for the generator to terminate the exposure
Mobile systems
a type of radiography equipment that can be brought to the patient anywhere the patient may be
Multiphase power
combination of several waveforms of current slightly out of step with one another
Overhead suspension system
a type of radiography unit that allows control of longitudinal and transverse positioning as well as vertical distance
Panoramic dental and facial unit
specialized radiography equipment for combined tomography of facial and dental structures
Phototimer
often used to describe all automatic exposure controls; this type of AED is rarely used in modern radiography
Shoulder supports
a piece of equipment that keeps the patient from sliding off the table when the table is tilted head down
Simulator units
specialized radiography equipment that allows verification of radiation therapy prior to actual treatment
Single-phase power
power supply that allows the potential difference to drop to zero with every change in the direction of current flow
Therapeutic
methods used to treat and rehabilitate a disease, disorder, or traumatic injury
Tilting
a piece of equipment that is movable and can be angled according to need
Timer
device used to end the exposure at an accurately measured preset time
Tomography units
specialized radiography equipment that allows movement in an arc during exposure
Urologic units
specialized radiography equipment that allows study of the urological and genital structures
Voltage ripple
the net voltage produced during full-wave rectification
