The installation of a neutron reflector inside a nuclear reactor core results in___________________?
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Answer: D. decreased leakage of neutrons
Explanation
Installing a neutron reflector around a reactor core successfully decreases the leakage of escaping neutrons. Reflectors scatter leaking neutrons back toward the core center to participate in further fission events. This returned neutron population improves overall core reactivity and reduces critical mass requirements. Neutron reflectors are typically constructed from materials with high scattering cross-sections and low absorption. Common reflector materials include beryllium, graphite, and heavy water placed directly outside the core. Neutron leakage represents a major efficiency loss in nuclear reactor physics requiring mitigation strategies.
Using reflectors allows engineers to build smaller and more compact reactor cores for specialized applications. Space reactors often employ high-performance reflectors to minimize overall system weight and fuel volume. Reflector savings directly improve the neutron economy and extend the operating life of nuclear fuel. Reflectors scatter existing particles rather than generating new neutrons through additional nuclear reactions. Absorbing neutrons would defeat the purpose by reducing available particles instead of conserving them. Reflectors bounce neutrons back without intentionally altering their velocity spectra to slow them down.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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