Radioactivity

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Across
  1. 2. Change in the DNA of a cell, often caused by radiation
  2. 3. Time it takes for half of a radioactive substance to decay (two words)
  3. 6. Device using magnetic fields to confine plasma for fusion
  4. 8. Process by which a radioactive atom becomes more stable
  5. 12. An unplanned event releasing harmful radioactive material (two words)
  6. 14. Amount of radiation absorbed by a person or object
  7. 17. Material that slows down neutrons in a nuclear reactor
  8. 19. International award for outstanding achievements in science and other fields (two words)
  9. 20. International research project to demonstrate nuclear fusion
  10. 21. Protection against radiation using absorbing materials
  11. 23. Series of nuclear fissions triggered one after another (two words)
  12. 24. Scientist who discovered radioactivity and won two Nobel Prizes (two words)
  13. 26. Heavy metal commonly used to block radiation
  14. 27. Radioactive substance used to follow a process inside the body
  15. 29. Identification of a disease or condition
  16. 30. Contact with radiation or radioactive materials
Down
  1. 1. Medical use of radiation to treat diseases like cancer
  2. 4. Technique to see inside the body using radiation (two words)
  3. 5. Spontaneous emission of particles or energy from unstable atomic nuclei
  4. 7. The emission of energy in the form of waves or particles, such as light, heat, or nuclear particles, from a source
  5. 9. Central part of an atom containing protons and neutrons
  6. 10. Device used to detect and measure radioactivity (two words)
  7. 11. A process where the nucleus of an atom splits into two or more smaller nuclei, releasing a large amount of energy
  8. 13. Particle made of 2 protons and 2 neutrons emitted during radioactive decay (two words)
  9. 15. Harmful by-product of nuclear reactions that remains radioactive (two words)
  10. 16. Device used in reactors to absorb neutrons and control the reaction (two words)
  11. 18. Imaging test using radioactive tracers to observe body functions (two words)
  12. 22. High-energy electromagnetic radiation emitted from atomic nuclei (two words)
  13. 25. Radioactive element used as fuel in nuclear reactors
  14. 28. A process where two small atomic nuclei combine to form a larger nucleus, releasing a large amount of energy