Which risk increases when unshielded americium-241 is stored long-term?

💡 Explanation

Radiation-induced material degradation increases, because alpha decay emits high-energy particles causing displacement damage within the storage structure. Therefore, embrittlement worsens progressively rather than a sudden failure or criticality which Am-241 cannot sustain.

• Which mechanism leads to increased brittleness in zinc castings?
• Which risk increases upon thermal cycling of epoxy-bonded composite joints?
• Which phenomenon causes decreased ammonia production in Haber-Bosch process reactor at elevated temperatures?
• Which outcome results when thermal expansion weakens a solder joint bonding a component to a PCB, causing grain boundary separation?
• Which process limits reaction rate when enzyme concentration exceeds substrate with stable Michaelis constant?
• Which effect limits maximum data transfer in fiber optic cables over long distances?