The fission chain reaction in a nuclear reactor can be controlled by:
Correct answer: C. Cadmium rods
- A. Iron rods
- B. Graphite rods
- C. Cadmium rods
- D. Platinum rods
Explanation
Cadmium rods are often used as control rods in nuclear reactors. By adjusting the position of these rods, it is possible to control the rate of the fission chain reaction by absorbing excess neutrons.
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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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