A positron emission tomography pet scanner examines the


A positron emission tomography (PET) scanner examines the gamma rays emitted when positrons and electrons annihilate each other. Since the mass of both the electron and positron is 511 keV/c2, two 511-keV photons are generated. What is the wavelength of the photons. Answer in pm.

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Physics: A positron emission tomography pet scanner examines the
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