ARRT registry review covering Equipment Operation and QC
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| Light-sensitive AEC devices are known as | phototimers (Lange Q&A p. 260)
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| the electron cloud within the x-ray tube is the product of a process called | thermionic emission (Lange Q&A p. 260)
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| circuit devices in today's x-ray equipment that permit electrons to flow in only one direction are | solid-state diodes (Lange Q&A p. 262)
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| in fluoroscopy, the automatic brightness control is used to adjust the | kilovoltage and milliamperage (Lange Q&A p. 264)
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| what is the device that directs the light emitted from the image intensifier to various viewing and imaging apparatus? | beam splitter (Lange Q&A p. 264)
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| as electrons impinge on the anode surface, less than 1% of their kinetic energy is changed to | x-rays (Lange Q&A p. 264)
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| congruence of the x-ray beam with the light field is tested using | radiopaque objects (Lange Q&A p. 265)
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| the device used to test the accuracy of the x-ray timer is the | spinning top (Lange Q&A p. 265)
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| the filtering effect of the x-ray tube's glass envelope and its oil coolant are referred to collectively as | inherent filtration (Lange Q&A p. 267)
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| to maintain the image clarity in an image-intensifier system, the path of electron flow from the photocathode to the output phosphor is controlled by | electrostatic lenses (Lange Q&A p. 267)
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| the amount of electric charge flowing per second | current (Lange Q&A p. 267)
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| how often are radiographic equipment kV settings required to be evaluated | annually (Lange Q&A p. 272)
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| the image-intensifier tube's input phosphor functions to convert | x-rays to light (Lange Q&A p. 273)
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| the image intensifier's input phosphor generally is composed of | cesium iodide (Lange Q&A p. 273)
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| function to change mechanical energy to electrical energy | generators (Radiography Prep p. 444)
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| a conductive wire shaped into a could is called | helix (Radiography Prep p. 445)
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| a helix supplied with a current is called | Solenoid (Radiography Prep p. 445)
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| transformers that increase the voltage are called | step up transformers or high voltage transformers (Radiography Prep p. 446)
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| the degree to which transformers increase the voltage is determined by their | turns ratio (Radiography Prep 446)
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| remote control switch that functions to start the x-ray exposure (the timer terminates the exposure) | exposure switch (Radiography Prep p. 463)
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