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← ScienceWhich outcome accelerates neutron emissions in Plutonium-239 microsphere aging?
A)Alpha decay induced Helium accumulation✓
B)Increased material lattice disclocation
C)Grain boundary diffusion reduction
D)Decreased surface oxidation reactions
💡 Explanation
Helium accumulation from alpha decay causes pressure increase, which stresses the microsphere. This accelerates further alpha decay by decreasing the energy required for tunneling through the nuclear potential barrier. Therefore, helium drives the process rather than lattice defects, grain boundaries, or surface passivation.
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