Nuclear fusion

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Across
  1. 2. The main useful output of fusion reactions.
  2. 3. 2.2ng lethal Dose
  3. 4. big boom of reactors in 1986.
  4. 5. The process of combining light atomic nuclei.
  5. 6. The main nuclear mechanical element
Down
  1. 1. The lightest element, whose isotopes are used as fusion fuel.
  2. 3. An ionized gas known as the fourth state of matter.
  3. 7. The temperature scale commonly used in physic.