VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which risk is increased when americium-241 inside smoke detectors accumulates alpha decay products?

A)Compromised sensor calibration
B)Reduced alpha particle penetration
C)Elevated detector temperature
D)Increased ionization chamber resistance

💡 Explanation

Alpha decay forms helium, which can deposit on the sensor, creating dielectric layers. Because this alters the electric field distribution, the sensor loses calibration, therefore, requiring more frequent sensitivity adjustments, rather than enhanced particle penetration as in other decay modes.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science