Which risk increases in aged smoke detectors using Americium-241?

💡 Explanation

Chamber ionization drops significantly because Americium-241 undergoes alpha decay, reducing its activity over long periods of time; therefore, the detector sensitivity diminishes rather than production of radon or cesium contamination with unrelated decay modes.

• Which risk increases when electrons reach relativistic speeds within magnets?
• Which outcome follows acceleration approaching Earth's escape velocity?
• Which consequence arises because of general relativity's equivalence principle impacting geodesy?
• Which outcome occurs when high-voltage AC transmission line capacitance increases significantly?
• Which effect results when a high Reynolds number fluid flows through a valve?
• Which consequence results when thermal stress causes chain scission?