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Which outcome occurs when a PET scan uses Fluorine-18?

A)Positron emission enables image reconstruction
B)Gamma absorption causes bone contrast
C)Alpha decay harms healthy tissues
D)Beta decay accumulates dangerous waste

💡 Explanation

Positron Emission Tomography imaging relies on positron annihilation, because Fluorine-18 undergoes *positron emission*. The emitted positron annihilates with an electron, creating gamma rays, therefore enabling reconstructing the high resolution image rather than other nuclear decay modes.

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