Q105 / 180 · AIIMS 2003 · Physics

In a material medium, when a positron meets an electron both the particles annihilate leading to the emission of two gamma ray photons. This process forms the basis of an important diagnostic procedure called

A
MRI
B
PET
C
$\mathrm{CAT}$
Correct answer
D
SPECT.

Hence, the correct answer is option: 'D'.

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