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How many alterations in the direction of the current flow occur in 0.10 second in a 60 Hz AC current?
At what point in the x-ray circuit is the rectification circuit loaded?
Between the step up transformer and the x-ray tube
Where is the stator of the anode induction motor located?
Outside the glass envelope and outside the rotor
The diagnostic x-ray range is approximately?
10 to 1,200mA, 0.001 to 10 seconds, 25 to 150 kVp (all of the above)
Radiographic rooms equipped with a tilting table are primarily designed for performing _______procedures.
To protect the radiographer during x-ray exposures?
The mA and kVp selections are on the low voltage side of the circuit
Which tube suspension system offers the greatest multidirectional movement?
Overhead tube suspension system
When full-wave rectification is applied to a three-phase current, a __________ripple is produced.
Ancillary equipment for tilting tables include?
Footbard, handgrips, shoulder supports (all of the above)
All of the following are desired features of radiographic tables EXCEPT?
Low abrasion surface to lessen patient slippage as they transfer
High frequency generators?
Use invertors to increase pulse frequency, produce similar output to three-phase with a single phase source, achieve peak kVp faster than single or three phase generators (all of the above)
Radiographing a thin body part using automatic exposure control (AEC)?
Is recommended to in order to reduce dose
Present day AEC technology utilizes?
Ionization chamber technology, minimum reaction times as short as 1 ms, a pre-detector AEC chamber position (all of the above)
When compared to batter-powered portable radiographic units, capacitor discharge mobile units?
Produce more consistent exposures
When compared to single-phase electrical current, three-phase power?
Permits short exposures, produces 360 pulses per second, produces less voltage ripple (all of the above)
What is an excellent x-ray tube positioning flexivility with patients on carts?
Overhead tube suspension system
What is used by orthodontists to assess the alignment of teeth and jaw disorders?
Panoramic dental and facial system
What is an inexpensive tube support design typically seen in small clinics?
Floor-to-ceiling suspension system
What is an x-ray tube and image receptor that is fixed to opposide ends of an arc design?
C-arm tube suspension
What is #3 in an x-ray circuit?
Autotransformer-modifies the incoming line voltage in anticipation of the kv that will be produced by the step up transformer
What is #7 in an x-ray circuit?
Filament circuit variable resistance- modifies the incoming line power ot produce the thermionic emission from the filament wire of the xray tube by a sequence of devices
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