Image Production - Ch. 8 Key Terms

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Across
  1. 3. range: Range of exposures a digital system can accurately record.
  2. 5. resolution: Ability to display differences in shades of gray.
  3. 6. radiation: Radiation remaining after passing through the patient.
  4. 8. image: Visible image after processing.
  5. 12. Removal of electrons from atoms, forming ions.
  6. 16. Arrangement of pixels forming a digital image.
  7. 18. effect: Complete absorption of an x-ray photon with ejection of an inner-shell electron.
  8. 19. Electron ejected during a photoelectric interaction.
  9. 20. electron: Outer-shell electron ejected during a Compton interaction.
  10. 22. electron: Electron produced by x-ray interactions in matter.
  11. 24. Overall reduction in x-ray beam intensity as it passes through tissue.
Down
  1. 1. scattering: Low-energy interaction where the photon changes direction without energy loss.
  2. 2. Deflection of x-ray photons after interaction.
  3. 4. X-ray energy is completely taken up by matter.
  4. 7. absorption: Different tissues absorb x-rays at different rates.
  5. 9. Unwanted exposure that reduces image contrast.
  6. 10. density: Compactness of tissue affecting x-ray absorption.
  7. 11. image: Invisible image stored before processing.
  8. 13. Real-time imaging using continuous or pulsed x-rays.
  9. 14. receptor: Device that captures x-rays to form an image.
  10. 15. bit depth: Number of gray shades a pixel can display.
  11. 17. effect: X-ray photon ejects an outer-shell electron and is scattered with reduced energy.
  12. 19. Smallest unit of a digital image.
  13. 21. X-rays passing through tissue without interaction.
  14. 23. radiation: X-rays that leave the patient and reach the image receptor.