222-2

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Across
  1. 2. Part thickness affects ______________. (2 words)
  2. 4. Shorthand for Source to Image Receptor Distance.
  3. 6. Use a fluorescent screen and a device that converts light to electricity
  4. 8. A smaller field size _________ the amount of radiation reaching the IR.
  5. 9. spot size affects sharpness.
  6. 11. The distance between the object and the IR
  7. 14. Instilled into the body by injection or ingestion to change the absorption characteristics of the tissues
  8. 17. Refers to the shortest exposure time that the system can produce. (3 words)
  9. 19. Refers to the maximum length of time the x-ray exposure will continue when using an AEC system (2 words)
  10. 21. The intensity of the x-ray beam is inversely proportional to the square of the distance from the source (3 words)
  11. 23. A ______ field size will allow for increased radiation
  12. 24. ___________ are not typically used in routine radiography today. (2 words)
  13. 25. Too little exposure causes _________ images, while too much increases the patient's radiation dose.
  14. 27. Variable and fixed are two types of _____________ charts.
Down
  1. 1. A ionization chamber is considered to be a ________ device (2 words)
  2. 3. A device placed between the body part and the IR to absorb scatter radiation exiting the patient (2 words)
  3. 5. Equation associated with changing mAs and SID.
  4. 7. When exposed to radiation, the air in the chambers becomes ionized, creating an electrical charge that travels along the wire to the timer circuit and trips the timer. (2 words)
  5. 10. __________ gives you low contrast. (3 words)
  6. 12. _________ may either underexpose or overexpose the image receptor.(2 words)
  7. 13. Light paddles coated with fluorescent material serve as the detectors. (3 words)
  8. 15. A higher kVp reduces the total number of interactions and increases the x-rays __________.
  9. 16. The purpose of AEC ________ is to ensure that consistent and appropriate exposures to the image receptor are produced.
  10. 18. _____ is Directly proportional to radiation quantity reaching the patient and the amount of remnant radiation reaching the IR.
  11. 20. Any point in the anode where photons interact to create heat. (2 words)
  12. 22. mAs and kVp are considered to be _________ factors
  13. 24. __________ is important as it creates a boundary for scatter.
  14. 26. The ____ system compensates for changes in patient thickness.