RADD 2501 Lab Experiments 1 & 2 - Review Questions

RADD 2501 Lab Experiments 1 & 2 - Review Questions - or...

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Review mA x time = mAs 1. What happens to the selected filament as the mA increases? 2. As the mA increases, what happens to the number of electrons boiled off of the filament? 3. As the mA increases, what happens to the number of x-rays created at the target? 4. As the mA increases, what happens to radiographic density? 5. As exposure time increases, what happens to the number of electrons boiled off of the filament? 6. As exposure time increases, what happens to the number of x-rays created at the target? 7. As exposure time increases, what happens to the radiographic density? 8. mAs = _____ x ______ 9. Describe the effect on radiographic density if an exposure is changed from 100 mA at 1/10 second (10 mAs) to 300 mA at 1/30 second (10 mAs)? 10. Define linearity. 11. Define reproducibility. 12. Which of these would give the patient the greatest exposure, 100 mA at 1/10 second
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Unformatted text preview: or 300 mA at 1/30 second? Why? 13. Which of these would be best to stop motion unsharpness, 100 mA at 1/10 second or 300 mA at 1/30 second? 14. How much of a change in mAs is required to notice a minimal change in radiographic density? 15. What should be done to the mAs if a radiograph is produced that needs to be repeated due to severe underexposure? 16. What should be done to the mAs if a radiograph is produced that needs to be repeated due to severe overexposure? 17. What is the point of using a small filament? Why not always use a small filament? 18. Does using 75 mA on the small filament result in greater sharpness than using 150 mA on the small filament? Why? 19. In terms of mA x seconds, how should all mAs be set on the console?...
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This note was uploaded on 11/22/2011 for the course RADD 2501 taught by Professor Sandyeverage during the Winter '11 term at Life Chiropractic College West.

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