Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when a positron emission tomography (PET) tracer decays?
A)Annihilation produces detectable gamma photons✓
B)Tracers emit harmful alpha particles
C)Metastability is achieved within the sample
D)Auger electrons contaminate blood samples
💡 Explanation
Annihilation radiation results because positron emission invokes matter/antimatter annihilation during decay, creating paired gamma photons moving in opposite directions; therefore A is the correct option, rather than alpha emission observed in other radioactive decays.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which thermodynamic consequence results when hydrogen gas rapidly expands through a throttling valve?
- Which outcome results when a viscous fluid exceeds Reynolds number limits moving through hydraulic systems?
- Which consequence results when differential path lengths exceed coherence length?
- Which outcome occurs when a cryogenic fluid exceeds the Leidenfrost Point threshold?
- Which consequence results when Schrodinger equation solutions diverge?
- Which consequence arises when a transformer's leakage inductance increases?