Choose the correct statement:
Correct answer: A. Moderators slow down the neutrons
- A. Moderators slow down the neutrons
- B. Moderators bring the neutrons to rest
- C. Moderators absorb the neutrons
- D. Moderators reflect the neutrons
Explanation
Moderators are materials used in nuclear reactors to slow down fast neutrons, making them more likely to cause further fission reactions. This is crucial for maintaining a sustained nuclear chain reaction.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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