By Ramana Annamraju MedBricks Doctors may not know his name, but he is immortal in the field of oncology. Paul Adrien Dirac (1902-1984) was known among his friends as a quiet man with few words. But he was not so quiet in his brain, which was filled with mind-boggling mathematical equations. One such equation has given birth to the present-day Positron Emission Tomography ( PET) scanner. British-born physicist Paul Dirac imagined a universe through his mathematical logic that is filled with antimatter. We don't know the address of the antimatter, but it is exactly the opposite characteristics of the particles that our universe is made of. The "Electron" is a negatively charged particle, whereas the counter particle of the antimatter is "Positron," which is positively charged with the same mass. The same goes with proton and antiProton. On occasions, the antimatter particles seep into our universe with a destructive force. Before Paul Dirac's publication, th...
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