221-3 Digital Crossword

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Across
  1. 2. A two-step process: where X-ray photons are converted to light and light photons are converted to an electrical signal
  2. 6. Are phosphors that produced
  3. 9. Random variation in image data from X-ray photons
  4. 10. The ____________ converts xray photons to light and stores it
  5. 12. A phosphor/scintillator requires a photodiode or _____________ to detect the light.chargedcouplingdevice A device that acts like a camera in an indirect conversion detector.
  6. 14. ____________ can be caused by rapid image succession and overexposure or an area with too little beam attenuation
  7. 16. The ____________ has a photoconductor, typically made of amorphous selenium (a-Se)
  8. 17. Absorb x-rays resulting in an electrical charge.
  9. 18. The first casette free devices usable in fixed or portable settings introduced in 1995
Down
  1. 1. _________ flat panel consist of a flat-panel array with an x-ray absorption material.
  2. 3. Unwanted noise created during signal amplification in a detector
  3. 4. The flat panel detector has a photoconductor, typically made of __________________ which absorbs x-rays and converts them to electrons, which are stored in the TFT detectors
  4. 5. A device with photosensitive array & tiny pixels that convert light to electricity
  5. 7. Incident light from a scintillator strikes the detector, and ______________ are produced in the silicon.
  6. 8. Converts light into electrical signals for digital image capture and processing.
  7. 11. Random electrical noise in a detector without tight or x-ray exposure
  8. 13. The __________ requires that the movement of the electrons is timed.
  9. 15. Transfers light between components to maintain the signal.