Nuclear physics

2. Fusion reactions that are managed to release energy in a controlled manner.
4. High-energy electromagnetic radiation emitted from nuclear reactions.
5. A type of nuclear reactor that creates more fissile material than it consumes.
8. The release of neutrons from a nucleus during certain types of nuclear reactions.
11. A process in which an inner atomic electron is captured by the nucleus.
12. Water containing a higher proportion of the deuterium isotope, used in certain types of nuclear reactors.
13. A device that increases the kinetic energy of charged particles.
16. A reaction or process that continues on its own once initiated.
17. Referring to elements or isotopes with a very high atomic number.
20. Pertaining to radiation or waste with low radioactivity.
23. Relating to the emission of electrons when light shines on a material.
25. Relating to particles or radiation with a high level of kinetic energy, such as gamma rays or fast-moving particles.
26. The power produced by nuclear fusion reactions.
28. Referring to substances that emit radiation as they decay.
29. A neutron with low kinetic energy, moving at speeds similar to particles at room temperature.

1. The energy required to split a nucleus into its constituent protons and neutrons.
2. A measure of the probability of a nuclear reaction occurring, often expressed in barns.
3. The process of combining isotopes to achieve a desired nuclear reaction or property.
6. The process of transferring energy from one particle to another.
7. The time required for half of the nuclei in a sample of a radioactive substance to undergo decay.
9. The minimum amount of fissile material needed to sustain a nuclear chain reaction.
10. A constant that describes the rate of radioactive decay.
14. A sequence of nuclear fissions where the products of each reaction initiate further reactions.
15. A nuclear reaction where a neutron is absorbed by a nucleus.
18. The production of energy, especially from nuclear sources.
19. A positively charged particle consisting of two protons and two neutrons, emitted from certain radioactive nuclei.
21. Material used to produce energy in nuclear reactors.
22. The difference between the mass of an atomic nucleus and the sum of its individual nucleons.
24. A barrier used to protect from harmful radiation.
27. A type of radioactive decay involving the emission of a beta particle.