RADT 456 Unit 2 Word Scramble
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| Question | Answer |
| Congruence of the x-ray beam with the light field is tested using_____ | radiopaque objects |
| What is the relationship between kV and HVL? | as kV increases, HVL decreases |
| The essential function of a phototimer is to_____ | terminate the x-ray exposure once the IR is correctly exposed |
| In which interaction does an electron approach a positive nuclear charge and change direction and lose energy? | Bremsstrahlung radiation production |
| What is the voltage ripple associated with three-phase, six-pulse rectified generator? | 13% |
| What is the device that receives the remnant beam, converts it into light, and then increases the brightness of that light | image intensifier |
| What is the end result when a high-speed electron enters the tungsten target and is attracted to the positive nucleus of a tungsten atom and, in the process, decelerates? | Bremsstrahlung radiation |
| What is used in digital fluoroscopy, replacing the image intensifier's television camera tube? | charge-coupled device |
| In fluoroscopy, what is the automatic brightness control used to adjust? | kVp and mA |
| When the radiographer selects the kVp on the control panel, which device is adjusted? | autotransformer |
| As electrons impinge on the target surface, less than 1% of their kinetic energy is changed to _______ | x-rays |
| What is the system that functions to compensate for changing patient/part thickness during fluoroscopic procedures? | automatic brightness control |
| What is the device used to ensure reproducible radiographs, regardless of tissue-density variations? | phototimer |
| What is the device used to change alternating current to unidirectional current? | solid-state diode |
| To maintain clarity in an image-intensifier system, the path of electron flow from the photocathode to the output phosphor is controlled by _________ | electrostatic lenses |
| What is the term to describe the amount of electric charge flowing per second? | current |
| Which part of an induction motor is located within the x-ray tube glass envelope? | rotor |
| Which part of the induction motor is located outside the x-ray tube glass envelope? | stator |
| Which device is used to control voltage by varying resistance? | rheostat |
| Light sensitive AEC devices are known as _____ | phototimers |
Created by:
kechambers
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