4-Jolene
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| show | photon
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| 2. How is Bremsstrahlung radiation produced? | show 🗑
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| 3. How is characteristic radiation produced? | show 🗑
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| 4. What type of radiation is x-radiation? | show 🗑
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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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| 8. What can be done to increase the quality of x-radiation emitted from the machine? | show 🗑
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| 9. How will the radiograph be affected if the mA is decreased? | show 🗑
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| 10. How will the radiograph be affected if the kVp is increased? | show 🗑
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| show | darker - higher in density
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| show | higher contrast (shorter gray scale); lighter - lower in density
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| show | direct the electrons towards the focal spot on the target during x-ray production
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| show | the focal spot of the target on the anode side of the x-ray tube located in the tubehead
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| show | remove long wavelength x-rays of low penetrating ability
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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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| show | higher contrast radiograph with fewer shades of gray evident
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| 22. What is meant by long scale contrast? | show 🗑
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| 23. What exposure setting affects the contrast scale? | show 🗑
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| show | sharpness aka definition
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| 25. What is the purpose for the filament? | show 🗑
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| 26. What is the first thing that should be done if the x-ray machine malfunctions? | show 🗑
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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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