4-Jolene
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| 1. What is the term for an energy form that travels the speed of light? | show 🗑
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| show | electron speeds close to the nucleus and high quality energy is released
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| show | electron speeds close the inner orbit electrons and high quality energy is released
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| show | electromagnetic
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| show | speed of light; 186,000 miles per second
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| 6. List the characteristics and properties of x-radiation. | show 🗑
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| show | increase the mA or the exposure time or both (mAs = mA x exp time in seconds
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| show | increase kVp
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| show | lighter - lower in density
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| show | lower contrast (longer gray scale); darker - higher in density
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| 11. How will the radiograph be affected if the mA is increased? | show 🗑
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| 12. How will the radiograph be affected if the kVp is decreased? | show 🗑
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| show | direct the electrons towards the focal spot on the target during x-ray production
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| 14. Where do x-rays originate? | show 🗑
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| 15. What is the purpose of the filter? | show 🗑
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| 16. What is the purpose for the collimator? | show 🗑
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| 17. What exposure setting determines the wavelength of the x-ray? | show 🗑
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| 18. What quality of the x-ray is changed when the wavelength is changed? | show 🗑
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| show | Rectangular
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| show | intensity of the x-ray beam decreases inversely proportional to the square of the distance from the source (as the beam gets farther from the tube, it gets larger AND less concentrated)
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| 21. What is meant by short scale contrast? | show 🗑
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| show | lower contrast radiograph with more shades of gray evident
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| show | kilovoltage - kVp
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| 24. What quality of the radiographic image will be affected by patient movement and film movement? | show 🗑
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| show | form electron cloud when machine is turned *on*, making available electrons for x-ray production
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| show | turn it off
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| show | move the tubehead into various postions and see if it remains or drifts
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| show | have it repaired; in the meantime, do not use it
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Created by:
Sandys
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