Substance used as a moderator for the chain reaction in the Chicago Pile -1 nuclear reactor was
Question and options
Substance used as a moderator for the chain reaction in the Chicago Pile -1 nuclear reactor was
- Boron
- Cadmium
- Water
- Graphite
Answer and explanation
Correct answer: D - Graphite
Chicago Pile-1 (1942, Fermi) used graphite blocks as the neutron moderator; cadmium and boron are absorbers used in control rods.
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