Fluoroscopy True/False

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Topic: Fluoroscopy
Question 1 of 71
Structure of the image intensifier:
  • AThe input screen is always larger than the output screen
  • BThe input screen is normally made from caesium iodide (CsI) crystals
  • CThe input screen detects approximately 60% of the incoming X-ray photons
  • DThe photocathode is attached to the output screen
  • EThe potential difference across the intensifier of about 25 kV accelerates electrons towards the photocathode