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RADT 465 Equip/QC

ARRT registry review covering Equipment Operation and QC

QuestionAnswer
Light-sensitive AEC devices are known as phototimers (Lange Q&A p. 260)
the electron cloud within the x-ray tube is the product of a process called thermionic emission (Lange Q&A p. 260)
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)
in fluoroscopy, the automatic brightness control is used to adjust the kilovoltage and milliamperage (Lange Q&A p. 264)
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)
as electrons impinge on the anode surface, less than 1% of their kinetic energy is changed to x-rays (Lange Q&A p. 264)
congruence of the x-ray beam with the light field is tested using radiopaque objects (Lange Q&A p. 265)
the device used to test the accuracy of the x-ray timer is the spinning top (Lange Q&A p. 265)
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)
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)
the amount of electric charge flowing per second current (Lange Q&A p. 267)
how often are radiographic equipment kV settings required to be evaluated annually (Lange Q&A p. 272)
the image-intensifier tube's input phosphor functions to convert x-rays to light (Lange Q&A p. 273)
the image intensifier's input phosphor generally is composed of cesium iodide (Lange Q&A p. 273)
function to change mechanical energy to electrical energy generators (Radiography Prep p. 444)
a conductive wire shaped into a could is called helix (Radiography Prep p. 445)
a helix supplied with a current is called Solenoid (Radiography Prep p. 445)
transformers that increase the voltage are called step up transformers or high voltage transformers (Radiography Prep p. 446)
the degree to which transformers increase the voltage is determined by their turns ratio (Radiography Prep 446)
remote control switch that functions to start the x-ray exposure (the timer terminates the exposure) exposure switch (Radiography Prep p. 463)
Created by: hayley_kidwell92