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Which outcome accelerates when a radioisotope thermoelectric generator's (RTG) shielding degrades?

A)Increased alpha particle emission
B)Increased gamma radiation heating
C)Increased rate of radioactive decay
D)Decreased thermoelectric conversion efficiency

💡 Explanation

Increased shielding degradation raises the gamma radiation hitting the thermocouples because Compton scattering causes increased energy absorption. Therefore heat increases non-linearly, rather than decay, although alpha emission remains constant at the radiation source. Thermoelectric efficiency will drop.

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