Across
- 5. Series of radioactive decays from a single isotope
- 8. Device measuring exposure to radiation
- 10. Type of radiation with low penetration power
- 12. Radioactive isotope from nuclear fission
- 16. Barrier protecting against radiation
- 17. High-energy, high-speed electron or positron
- 18. Splitting of atomic nuclei releasing energy
Down
- 1. Radioactive gas from natural sources
- 2. Heavy metal used in nuclear reactors
- 3. Site of a major nuclear disaster in 1986
- 4. Process of safely closing a nuclear plant
- 6. Unwanted presence of radioactive substances
- 7. Variant of an element with different neutron count
- 9. Radioactive isotope used in medicine and industry
- 11. High-energy electromagnetic radiation
- 13. Time for half a radioactive substance to decay
- 14. Dangerous isotope from nuclear fallout
- 15. Radioactive element used in nuclear weapons