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Equipment Op/QC

QuestionAnswer
The type of x-ray tube designed to turn on and off rapidly grid-controlled
The electron cloud within the xray tube is the product of a process called thermionic emission
What causes pitting, or melting, of the anode's focal track repeated, frequent overloading
What are the ion chambers in the bucky for AEC
Congruence of the xray beam with the light field is tested using radiopaque objects (pennies)
What converts electrical energy into mechanical energy motor
The essential function of a phototimer is to terminate the exposure once enough xrays have hit the IR
The device that receives teh remnant beam, converts it into light and increases brightness is what image intesifier
What occurs during Bremsstrahlung radiation production The electron slows and changes direction
What system functions to compensate for changing patient thickness during fluoro Automatic brightness control
When the radiographer selects kilovoltage what device is being adjusted autotransformer
As electrons impinge on the anode surface, less than 1% of their energy is turned into what xrays
What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus beam splitter
The xray tube in a CT imaging system is associated with pulsed xray beam
The device used to change alternating current to unidirectional current is solid state diode
The image intensifier tube's input phosphor functions to convert xrays to light
What is the formula for determining heat units for a three phase 12-pulse xray mA X time X kV x 1.41
Which of the following terms describes the amount of electric charge flowing per second Current
What part of an induction motor is IN the glass envelope rotor
what functions to increase milliamperage increase heat at filament (more electrons burned off)
A photostimulable phosphor is used with CR
Created by: jfwoodard