Radiation

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Across
  1. 2. Radiation from natural sources
  2. 4. The name for the process of releasing nuclear radiation (5)
  3. 6. Alpha particles are made of two protons and two _____ (8)
  4. 7. Most ionising radiation (5)
  5. 8. Beta positive radiation is a ___ (8)
  6. 10. Equipment used to detect radiation (6,7)
  7. 11. The type of radiation is the high energy electron (4)
  8. 12. Radiation that travels as a wave (5)
Down
  1. 1. A use of gamma radiation in medicine (13)
  2. 2. Unit used to measure radioactivity (9)
  3. 3. A fast moving particles (8)
  4. 5. Type of radiation stopped by paper (5)
  5. 9. Symbol for radioactive warning (7)
  6. 10. Radiation that travels at the speed of light (5)