The most amazing diagnostic imaging crossword

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Across
  1. 3. (2 words)The light tubes used in the illuminators
  2. 7. Most vulnerable area when radiation strikes
  3. 10. (2 words)Method of transporting energy through space
  4. 12. Packages of energy.
  5. 13. (2 words)Painted a light reflective cover
  6. 16. Acronym for as low as reasonably achievable
  7. 17. Works slowly to build up the blacks and enhance the contrast of the image.
  8. 19. Site of electron production
  9. 20. (2 words)Vacuum containing an anode and a cathode
Down
  1. 1. (2 words)Controls speed of electrons
  2. 2. (2 words)Can be used to advantage when radiographing the thorax or abdomen
  3. 4. Necessary when radiographing a body part thic.
  4. 5. Distance between 2 consecutive corresponding points on a wave
  5. 6. Moving of electrons from shell to shell
  6. 8. Study of diagnostic images of anatomic structures
  7. 9. Device which narrows a beam of particles or waves.
  8. 11. Target site for electrons
  9. 14. Used to remove low energy radiation
  10. 15. Denotes the pictoral element of the image
  11. 18. What charge do electrons have?