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Stack #132647 Quiz

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1. What is the unsharpness that is an inherent part of every radiographic image due to the position and shape of anatomic structures within the body?




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2. What effect does SID have on density?




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3. What is considered the useful range of optical densities?




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4. What change in KVP is needed to make a visible change in contrast?




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5. Do filters have an effect on density?




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6. What is the region of the anode target where electrons interact to produce x-rays?




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7. What is the absorption of x-rays in the heel of the anode which results in decreased x-ray intensity of the anode side of the central ray?




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8. What percent change in MAS makes a visible difference in density.




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9. What is the rate at which x-ray energy is transformed into light in an intensifying screen?




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10. What effect do grids have on contrast?




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11. There is an increase in recorded detail as focal spot size decreases




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12. Changes should be made in increments of 8 or 15%




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13. radiographic density (optical density)




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14. resolution also called recorded detail




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15. Image receptor (film) contrast




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16. Image receptor (film) contrast and subject contrast




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17. As the speed of the intensifying screen increases, density increases




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18. focal spot blur




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19. Differential absorption increases as the KVP is decreased; conversely, as KVP increases, more photons pass through and differential absorption decreases




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20. magnification





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