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

💡 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.

• Which consequence results when laminar flow transitions in a pipe network due to exceedance of non-negligible Reynolds number?
• Which aspect degrades antenna signal when rain accumulates?
• Which mechanism causes increased switching speed in strained silicon transistors?
• Which mechanism causes increased corrosion susceptibility when grain boundaries change in alloy metals?
• Which consequence results when an optical flat shows fringes?
• Which phenomenon causes semiconductor conductivity to increase under illumination?