Equipment Operation and Quality Control
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| What part of the x-ray beam helps contribute to forming the image pp. 434 | exit beam or remant beam
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| What is the principle factor affecting beam quantity pp.434 | mAs
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| What is the principle factor affecting beam quality pp.434 | kVp
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| The gradual decrease in an exposure rate as radiation passes through tissue pp.434 | attenuation
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| The type of transformer that increases the voltage pp. 440 | step up or high voltage
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| Generators convert what type of energy pp. 437 | converts mechanical energy into electrical energy
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| What is the autotransformer law/transformer law pp. 441 | Vs/Vp=Ns/Np
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| Rectifers are made from what type of material pp/ 442 | silicon, selenium, germanium
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| What components are part of the cathode pp. 444 | one or more filaments, supporting wires for the filaments, and focusing cup
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| What is the function of the line voltage compensator pp. 452 | functions to adjust automatically for any fluctuations in incoming voltage supply
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| What is the function of the mAs timer pp. 452 | the timer monitors the product of mA and time and will terminate the exposure when the desired mAs has been reached
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| What is the filament circuit responsible for pp. 455 | It supplies low voltage current to the filament of the x-ray tube
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| What is the "Moire" affect pp. 461 | This affect is associated with digital imaging and grids. If direction of the lead strips and the grid lines per inch matches the scan frequency of the scanner/reader will cause artifact
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| What is radiographic QC pp. 493 | A organized and methodical evaluation of imaging comments from the x-ray tube to the automatic film processor, with the purpose of decreasing repeat exposures, thereby decreasing patient radiation exposure and increasing cost effectiveness
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| Who is responsible for QC testing pp. 493 | QC technologist, service engineer, and medical physicist
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| What tool is used to evaluate mA stations pp. 495 | aluminum step wedge or penetrometer
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| How often should collimators be inspected pp.496 | Semiannually
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| Focal spot size can be measured with _________ pp. 497 | pinhole camera
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| How often should personal fluoroscopic shields checked pp. 498 | Annually
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| What is the definition for half value layer pp. 496 | the thickness of any absorber that will reduce x-ray beam intensity to one-half its original value
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