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Protection final

  1. what is the inverse square law?
    "The intensity of radiation is inversely proportional to the square of the distance from the source"
  2. 17 year old dose limits 
    .1rem
  3. General public(freq. exp) dose limit
    .1rem
  4. Whole body occupational dose limit
    5rem
  5. Occupational lense of eye dose limit
    15rem
  6. Embryo/fetus dose limit
    .5 rem
  7. General public(infreq. Exp.) dose limit 
    .5 rem
  8. 19 year old radiography student dose limit 
    5 rem
  9. How do you convert rem to miliseverts?
    Rem x 10=mSv
  10. Hands, occupational worker, dose limit
    50 rem
  11. Skin dose limit
    50 rem
  12. Thyroid dose limit
    50 rem
  13. Tissue/organs
    50 rem
  14. dose limit for a declared pregnant worker per month
    .05 rem
  15. LD 50/60 dose limit
    480 rem
  16. Temporary sterility dose limit
    200 rem
  17. Radiation sickness dose limit
    100 rem or rad
  18. Chromosome aberration dose limit
    5 rem
  19. Hematologic depression dose limit
    25 rem
  20. Cataracts (acute) dose limit
    200 rem
  21. Cataracts(chromic) dose limit
    1000 rem
  22. Death of all humans (no tx.) dose limit
    600 rem
  23. Death of all humans (w/tax.) dose limit
    1000 rem
  24. Gonadal dysfunction dose limit
    10 rem
  25. Erythema dose limit 
    200 rem
  26. Epilation dose limit
    300 rem
  27. 8 week abortion dose limit 
    20 rem
  28. 0-9 days (death) dose limit 
    15 rem
  29. Minimum DE dose limit
    200 rem
  30. LD 50/30 dose limit 
    300 rem
  31. _______ is the most effective means of protection from ionizing radiation.
    Distance 
  32. The inverse square law expresses the relationship between ______ and _________  of radiation and governs the dose received.
    • Distance
    • intensity(quantity) 
  33. As the distance between the source of radiation and any given measurement point _______, radiation intensity(quantity)  measurement at that point _________ by the a square of the relative change in distance between the new location and the old.
    • Increases
    • decreases
  34. When the distance from a point source of radiation is, the radiation at the new location spans an area _______ times larger than the original area. Hodensity the intensity at the new distance is only 1/__ of the original intensity
    • 4
    • 1/4
    • (distance x3=1/9 of the intensity of the beam)
    • (distance x4= 1/16 of the intensity)
  35. The amount of radiation a worker receives is _____ proportional to the length of time for which the individual is exposed to ionizing radiation.
    Directly 
  36. Required thickness of an apron 
    .25 mm
  37. Required thickness of a thyroid shield
    .5mm
  38. Primary barrier thickness
    1/16mm
  39. Secondary barrier thickess
    1/32 mm
  40. Lead glass window thickness
    1.5mm
  41. Spot film protective curtain thickness
    .25mm
  42. Bucky slot shielding device thickness 
    .25mm
  43. stationary?
    mobile.
    • 15 in
    • 12 in 
Author
ashleyfoster
ID
187732
Card Set
Protection final
Description
Protection
Updated

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