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1. Where fission products are produced
2. Has a charge of 2
3. Dose resulting from internal sources
4. Remains of an atom after it has undergone fission
5. Number of protons in the nucleus
6. Exposure pathway for tritium
7. Principal form of ionizing radiation
8. Internal exposure pathway
9. Organ most susceptible to damage from radiation
10. High speed electron emitted from nucleus
11. Critical organ of carbon14
12. Radioactive isotope of hydrogen
13. Capable of being dissolved
14. Critical organ for radioiodine
15. Amount of radiation retained in the body
16. Produced by neutron bombardment
17. Produces beta hazard
18. Unit of equivalent dose
19. Electrically neutral particle