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Which risk increases when depleted uranium is machined?

A)Isotope selective alpha particle emission
B)Elevated concentration of radon progeny
C)Neutron activation material embrittlement
D)Delayed criticality of waste dust

💡 Explanation

Machining depletes naturally protective oxides, therefore elevated concentration of radon progeny risk increases due to alpha decay byproducts. The mechanism is alpha decay, rather than neutron or gamma because the relative fraction of U-238 causes increased alpha emissions.

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