RADIOLOGY

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Author:
vanessasoto
ID:
222151
Filename:
RADIOLOGY
Updated:
2013-06-02 23:34:20
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chapter Ray Production
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chapter 1 flashcards
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  1. what is technique?
    • position
    • labeling
    • setting of the machine
  2. what is the most important thing?
    safety
  3. what is the definiation of x-ray?
    a form of electromagnetic radiation similar to visible light but of much shorter wavelength
  4. how do x-rays travel?
    it travels in a straight line
  5. can direction alter in an x-ray?
    yes but the new path is also a straight line
  6. what can x-rays cause?
    biologic changes in living tissues
  7. what do x-rays produce?
    an invisible image on photographic film that can be made visible by processing
  8. what is another word for invisible image?
    latent image or hidden image
  9. when can scatter radiation happen?
    when it hits an object
  10. the thicker the object....
    the more scattered radiation
  11. where can you put x-rays cassettes?
    on the bottom of the table (bucky or tray) or on top of the of the table depending on the thickness of the object
  12. where do you put the cassette when the object is 10cm or less
    on top of the table
  13. where do you put the cassette when the object is 10cm or more?
    on the bottom of the table (bucky or tray)
  14. do x-rays go straight into objects?
    no
  15. how are x-rays generated?
    when fast moving electrons collide with a target
  16. what is the result of the collision of fast moving electrons and target?
    the production of heat and radiation
  17. what precent of the x-ray is heat?
    99%
  18. what precent of the x-ray is radiation?
    1%
  19. 99% of x-ray is...
    heat
  20. 1% of x-ray is...
    radiation
  21. 1890
    professor Goodspeed discovery of x-rays
  22. when did Goodspeed discover x-rays
    1890
  23. 1895
    Wilhelm Conrad Roentgen
  24. Wilhelm Conrad Roentgen
    1895
  25. 1901
    nobel prize (1st ever in physics) Wilhelm Conrad Roentgen
  26. nobel prize (1st ever in physics) Wilhelm Conrad Roentgen
    1901
  27. when did skin discoloration much like sunburn appeared and led to radiation therapy
    1896
  28. 1896
    skin discoloration much like sunburn appeared and led to radiation therapy
  29. what happens to x-rays when they hit objects?
    they get diviated
  30. physical properties of x-rays
    • 1. it travels in a straight line. direction can alter, but the new path is also a straight line
    • 2. it produces an invisible image on photographic film that can be made visible by processing
    • 3. it can cause biologic changes in living tissue

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