ARRT Review Covering Equip
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| What type of x-ray tube is designed to turn on and off quickly, providing multiple short, precise exposures? | Grid-controlled
Lange Q&A pg 273
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| What principle do these circuit devices operate on: autotransformer and choke coil? | Self-induction
Lange Q&A pg 273
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| The image is magnified when using the small or large field in a dual field image intensifier? | Small
Lange Q&A pg 274
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| The minimum response time of an automatic exposure control (AEC)uses its ______ exposure time | shortest
Lange Q&A pg 274
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| The electron cloud within the x-ray tube is the product of a process called: | thermionic emission
Lange Q&A pg 274
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| What does repeated, frequent overloading do to the anode's focal track? | Causes pitting
Lange Q&A pg 274
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| A parallel-plate inoization chamber receives a particular charge as x-ray photons travel through it. This is the operating principle of what device? | AEC
Lange Q&A pg 275
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| Do kV and HVL have a direct or indirect relationship? | direct
Lange Q&A pg 276
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| What converts electrical energy into mechanical energy? | Motor
Lange Q&A pg 276
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| To terminate the x-ray exposure once the IR is correctly exposed is the job of the _______. | Phototimer
Lange Q&A pg 276
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| An electron approaching a positive nuclear charge changes direction and loses energy in which production of radiation? | Bremsstrahlung
Lange Q&A pg 277
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| What type of device is used to measure focal spot size and spatial resolution? | slit camera
Lange Q&A pg 276
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| What is the voltage ripple for a three phase-six pulse rectified generator? | 13%
Lange Q&A pg 277
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| Which device receives the remnant beam, converts it into light, and then increases the brightness? | Image Intensifier
Lange Q&A pg 277
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| Give three components of the image intensifier. | Photocathode, focusing lens, accelerating anode
Lange Q&A pg 278
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| In digital fluoroscopy, what has taken place of the image intensifier's televesion camera tube? | The charge-coupled device
Lange Q&A pg 278
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| ________ involves reciprocal motion of the x-ray tube and film. | Tomography
Lange Q&A pg 278
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| In fluoroscopy, the ABC is used to adjust the kVp and _____. | mA
Lange Q&A pg 278
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| When kV is selected on the control panel, ________ is adjusted. | the autotransformer
Lange Q&A pg 278
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| What is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus? | the beam splitter
Lange Q&A pg 279
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| The x-ray tube in CT is most likely to be associated with what? | a pulsed x-ray beam
Lange Q&A pg 280
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| A device used to ensure reproducibility radiographs, regardless of tissue density variations, is the _____. | Phototimer
Lange Q&A pg 281
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| The device used to change alternating current into unidirectional current is the _____. | Solid state diode
Lange Q&A pg 281
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| Which part if an induction motor is located outside the x-ray tube glass envelope? | Stator
Lange Q&A pg 283
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| Which part if an induction motor is located within the x-ray tube glass envelope? | Rotor
Lange Q&A pg 283
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| What mode of a trifield image intensifier will result in the highest patient does; 25 in., 17 in., or 12 in.? | The 12 in. mode
Lange Q&A pg 284
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| Fractional focus tubes, with a 0.3-mm focal spot or smaller, have special application is which of the following? magnification radiography, fluoroscopy, tomography, or image intensification | Magnification radiology
Lange Q&A pg 284
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| An increase in the heat of the filament will cause the mA to what? | increase
Lange Q&A pg 284
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| The filtering effect of the x-ray tube's glass envelope and its oil coolant are referred to collectively as what? | inherent filtration
Lange Q&A pg 288
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| What device is best used to determine the accuracy of the x-ray timer? | the spinning top
Lange Q&A pg 288
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