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511keV. Positron is scattered by nearby electrons. Positron is emitted from FDG in a cancer cell. b +. Their mass is converted to energy using Einstein’s E=Mc 2. 180 q. e. e. e. e. e. e. e. e. e. e. e. e. e. e. e. After slowing down the positron combines with an electron.
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511keV Positron is scattered by nearby electrons Positron is emitted from FDG in a cancer cell b+ Their mass is converted to energy using Einstein’s E=Mc2 180q e e e e e e e e e e e e e e e After slowing down the positron combines with an electron b+ 511 keV • positron and electron create two 511keV photons