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Which risk increases when an alpha particle decay counter's mica window degrades?

A)Increased background radiation detection
B)Reduced detector sensitivity to alpha
C)Spurious pulse pile-up occurrence
D)Amplifier saturation from window capacitance

💡 Explanation

Increased background radiation detection results because the degraded mica window offers less shielding, therefore more external (beta and gamma) radiation penetrates, rather than just alpha particles, due to insufficient alpha stopping power remaining.

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