Nuclear Science and Technology

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Across
  1. 2. Radioactive dust from a nuclear explosion.
  2. 8. The unwanted presence of radioactive substances.
  3. 9. The central part of an atom.
  4. 13. The ability to do work.
  5. 14. The process of removing radioactive substances.
  6. 15. A severe nuclear reactor accident.
  7. 17. A radioactive isotope of hydrogen.
  8. 19. A process where nuclei split or combine.
  9. 21. The process of exposing something to radiation.
  10. 23. A highly radioactive element used in paints.
  11. 25. A particle emitted from a nucleus during decay.
  12. 27. The process of splitting a heavy nucleus into smaller ones.
  13. 28. A highly radioactive element discovered by Marie Curie.
  14. 29. A building material used for radiation shielding.
  15. 30. An instrument used for detecting radiation.
  16. 32. A positively charged particle in the nucleus.
  17. 34. A radioactive metal used as nuclear fuel.
Down
  1. 1. Invisible energy emitted by radioactive substances.
  2. 3. A type of radiation consisting of two protons and two neutrons.
  3. 4. A device that measures exposure to radiation.
  4. 5. Atoms with the same protons but different neutrons.
  5. 6. A particle with a negative charge that orbits the nucleus.
  6. 7. A device used to measure radiation levels.
  7. 10. A unit of radiation dose.
  8. 11. A radioactive element used in medical treatments.
  9. 12. The process of a nucleus breaking down.
  10. 14. A man-made element used in nuclear weapons.
  11. 16. Radioactive materials that are no longer useful.
  12. 18. An element commonly used as fuel in nuclear reactors.
  13. 19. A doctor who specializes in medical imaging.
  14. 20. A particle in the nucleus with no electric charge.
  15. 22. A device that initiates and controls a nuclear reaction.
  16. 24. The basic unit of a chemical element.
  17. 26. The combining of two light atomic nuclei.
  18. 30. High-energy electromagnetic radiation.
  19. 31. A radioactive gas that can accumulate in basements.
  20. 33. A barrier that protects against radiation.