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RADT456
Equipment Operation
Question | Answer |
---|---|
What is the function of the image-intensifier tube's input phosphor? | Convert x-rays to light |
What device changes alternating current to undirectional current? | Solid-state diode |
What device is used to ensure reproducible radiographs, regardless of different tissue-density? | Phototimer |
What part of the induction motor is located outside of the glass envelope of the x-ray tube? | Stator |
Utilizing AEC, if the image is overexposed due to an exposure shorter than the minimum response time, what should the radiographer do? | Decrease the millamperage |
Where are fractional-focus tubes with a 0.3mm focal spot or smaller used? | Magnification radiography |
What is magnification radiography used for? | To demonstrate small, delicate structures that are difficult to visualize with conventional radiography. |
What device converts electrical energy to mechanical energy? | Motor |
What exam calls for a cassette front to have very low absorption properties? | Mammography |
What is the relationship between kV and HVL? | Direct, increase kV-increase HVL |
What is a common cause of pitting of the anode's focal track? | Repeated, frequent exposure |
What type of x-ray tube is designed to turn off and on quickly and provide multiple short, precise exposures? | High speed |
What is reproducibility? | Exposures repeated at a given technique must provide consistent intensity. |
What is the function of the image-intensifier tube's input phosphor? | Convert x-rays to light |
What device changes alternating current to undirectional current? | >99% |
What device is used to ensure reproducible radiographs, regardless of different tissue-density? | Phototimer |
What part of the induction motor is located outside of the glass envelope of the x-ray tube? | Stator |
Utilizing AEC, how will an image appear if it is overexposed due to an exposure shorter than the minimum response time, what should the radiographer do? | Decrease the millamperage |
What is the voltage ripple associated with a three-phase, twelve-pulse rectified generator? | Magnification radiography |
What is magnification radiography use for? | To demonstrate small, delicate structures that are difficult to visualize with conventional radiography. |
What device converts electrical energy to mechanical energy? | Motor |
What exam calls for a cassette front to have very low absorption properties? | Mammography |
Direct, increase kV, increase HVL | |
What is a common cause of pitting of the anode's focal track? | Repeated, frequent exposure |
What type of x-ray tube is designed to turn off and on quickly and provide multiple short, precise exposures? | |
13% | |