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← ScienceWhich risk increases in portable alpha spectrometers when radioisotope shielding degrades?
A)Detector saturation from secondary radiation✓
B)Sample volatilization affects relative emission
C)Instrument accuracy is increased slightly*
D)Lowered detection limits for trace elements
💡 Explanation
Increased radiation exposure causes detector saturation via pair production because decaying nuclei emit high-energy particles. This overwhelms the sensor, rendering it less accurate rather than improving trace detection, therefore accurate readings can't be obtained.
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