Chapter 2 - Radiation Physics

Edit Answers
123456789101112131415161718192021222324252627282930313233343536373839404142434445
Across
  1. 4. force that holds electrons in orbit around the nucleus
  2. 9. anything that occupies space and has mass
  3. 12. effect where photon is completely absorbed and electron ejected
  4. 13. an atom or molecule that has lost or gained an electron and carries a charge
  5. 14. metal housing containing x-ray tube and transformers
  6. 15. energy unit of electromagnetic radiation
  7. 17. transformer that increases voltage for the high-voltage circuit
  8. 18. radiation consisting of energy waves without mass
  9. 23. accelerated hydrogen nuclei with positive charge
  10. 25. high-energy electromagnetic radiation used in imaging
  11. 26. bundle of energy that travels at the speed of light with no mass
  12. 27. deflected radiation that travels in different directions
  13. 29. spontaneous disintegration of unstable atomic nuclei
  14. 31. negative electrode that produces electrons when heated
  15. 35. contains on/off switch, timer, and exposure settings
  16. 36. positive electrode that converts electrons into x-ray photons
  17. 37. total transfer of photon energy to matter
  18. 42. type of radiation made of particles with mass traveling in straight lines
  19. 43. voltage compensator that adjusts for current fluctuations
  20. 44. dissipates heat from the tungsten target
  21. 45. transformer that decreases voltage for the filament circuit
Down
  1. 1. number of wavelengths that pass a point per unit of time
  2. 2. x-rays produced when electrons slow near the nucleus
  3. 3. scatter where photon path changes without ionization
  4. 5. accelerated particle with no electrical charge
  5. 6. process of converting an atom into ions by gaining or losing electrons
  6. 7. electrical force controlling speed and energy of electrons
  7. 8. electrostatic attraction between positive nucleus and negative electrons
  8. 10. controls number of electrons produced by filament
  9. 11. fast-moving electron emitted from a radioactive atom
  10. 16. neutral particle found in the nucleus
  11. 19. particle consisting of two protons and two neutrons
  12. 20. supports and positions the x-ray tubehead
  13. 21. emission and propagation of energy through space or a substance
  14. 22. x-rays produced when inner-shell electrons are ejected at 70 kVp or above
  15. 24. fundamental unit of matter consisting of a nucleus and orbiting electrons
  16. 28. positively charged particle found in the nucleus
  17. 30. radiation created when primary beam interacts with matter
  18. 32. penetrating beam produced at anode target
  19. 33. scatter where photon collides with outer-shell electron and changes direction
  20. 34. converts electrons into photons at the anode
  21. 38. device used to increase or decrease voltage
  22. 39. center of the atom containing protons and neutrons
  23. 40. distance between two wave crests
  24. 41. negatively charged particle orbiting the nucleus