# RADD 2501 In Class Review - X-Ray Physics Class Game Review...

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X-Ray Physics – Class Game Review 1. Q. Focal Spot size depends upon? A. filament 2. Q. How do you select the filament? A. select ma 3. Q. If double mas, what happens to density? A. density doubles 4. Q. What type of rectification gives short exposure time A. high frequency and longer tube life? 5. Q. What is range of kvp when x-raying extremities under A. 50-60 kvp 10 cm? 6. Q. What are 2 aka’s for SID? A. FFD and TFD 7. Q. What side of the tube has the greatest geometric A. anode sharpness? 8. Q. What is the Systems International Unit for REM? A. Seivert 9. Q. What is the purpose of the bucky? A. reduce scatter 10. Q. State the exposure factor representing the total # A. mas of x-rays in the beam? 11. Q. The majority of x-rays produced in a beam are created A. Bremsstrahlung via this process? 12. Q. State the technical factor that controls the energy of A. kvp the x-ray? 13. Q. You need a ____ change in mas to see a minimal A. 30% change in density? 14. Q. Radiographic density is controlled by? A. mas 15. Q. What is the Systems International Unit for R? A. Coulombs/kg 16. Q. How many ____ REM = 1 Seivert? A. 100 17. Q. What is the formula for heat units? A. kvp x ma x time or kvp x mas 18. Q. What is the relationship between frequency and A. inversely related

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wavelength? 19. Q. How does kvp effect film density? A. raise kvp 15%, lower density by ½ 20. Q. How do you fix tube overload? A. lower ma, raise time 21. Q. If double SID, what happens to the density? A. ¼ 22. Q. Describe linearity?
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