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← ScienceWhich risk increases when deuterium-tritium fuel isotopes are impure?
A)Substantial neutron absorption increases
B)Plasma confinement becomes unstable
C)Alpha particle heating decreases✓
D)Bremsstrahlung radiation production surges
💡 Explanation
Impure isotopes dilute the fuel in fusion reactors, weakening the rate of fusion; therefore, the alpha particle heating drops because this heat source relies on fusion reactions, rather than impurities strongly affecting neutron absorption, radiation, or plasma stability.
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