Chapter 7 Crossword Puzzle

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Across
  1. 3. The opening of the gantry
  2. 5. A square that makes up a matrix; also known as pixel element
  3. 6. A type of image that is continuous
  4. 7. The amount of x-rays that pass through the body determines the shades of gray on the image
Down
  1. 1. A type of mage represented by numbers (0 and 1)
  2. 2. A grid characterized by rows and columns
  3. 4. Volume element or thickness