Card Set Information

2012-09-06 23:40:46

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  1. Radiology
    the branch of science dealing with the use of x-rays
  2. Radiography
    the making of film records of internal structures of the body by exposure of film specially sensitized to x-rays.
  3. Radiograph
    the film produced by radiography
  4. Radiologist
    a specalist in radiology
  5. Roentgen
    a unit of measurment of x-ray beams
  6. How are x-rays generated?
    They are created when fast moving electrons collide with any form of matter.
  7. How many x-rays are produce and what is the rest of the energy?
    1% are turned into x-rays the rest is heat.
  8. What are the three basic type of x-ray equipment and what are they used for?
    • Portable - large animals (equine)
    • Mobile - dental x-rays
    • stationary - general practice
  9. Name what the basic controls of an x-ray equipment is.
    • mA - milli amperes
    • time
    • KV - kilovolts
  10. What determines the settings that you use?
    The thickness of the body part being x-rayed in centimeters
  11. What does the collimator do?
    It focuses the beam of light on a desired area. It prevets scatter radiation and enahnces the quality of the picture.
  12. What is the Anode heel effect?
    it is the unequal distribution of the x-ray beam.
  13. What is the advantages that can be used with the anode heel effect?
    They can use this with the unequal thickness of the animal. Point the animal's head towards the anode side because that is the thickest part of the beam and the thickest part of the animal.
  14. What is radiographic density?
    it is the degree of blackness on a radiograph.
  15. What is radiographic contrast?
    It is the diffrences between radiographic density. The shades of grey
  16. What is the focal film distance?
    the distance from the target to the film.
  17. What is object film distance?
    the distance between the body part and the film
  18. What causes distortion?
    this is caused when a body part is not parallel to the film
  19. What is scatter?
    when the x-rays are deflected off the object.
  20. What is the santos rule?
  21. What is mAs?
    the milli aperage and the exposure time
  22. What is kVp?
    the voltage applied between the cathode and the anode