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← ScienceWhich consequence results when a radioisotope thermoelectric generator (RTG) fuel cladding fails?
A)Increased alpha decay rates outside
B)Helium-3 production decreases sharply
C)Uncontrolled energy chain reaction results
D)Contamination via material thermal diffusion✓
💡 Explanation
The cladding prevents material escape; breaching it allows diffusion because the concentration gradient promotes the transport of radioactive isotopes from the fuel to the environment. Therefore, radioactive substance contamination occurs, rather than an increased decay rate, helium-3 shortage, or chain reaction.
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