Anti Matter

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A simple straight forward slide show about anti matter, its advantages, disadvantages and implications.

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Anti Matter

  1. 1. ANTI MATTER<br />
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  5. 5. What is antimatter?<br />Matter contains particles (electrons, protons etc).<br />Antimatter contains antiparticles (antielectrons, antiprotons etc).<br />
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  7. 7. An antielectron (also called "positron") and an antiproton could form an antihydrogen atom in the same way that an electron and a proton form a normal matter hydrogen atom.<br />
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  9. 9. History<br />The modern theory of antimatter begins in 1928, with a paper by Paul Dirac.<br /> Dirac realized his version of the Schrödinger wave equation for electrons was predicting the possibility of antielectrons. <br />These antielectrons were discovered by Carl D. Anderson in 1932 and named positrons.<br />
  10. 10. Annihilation <br /><ul><li>Annihilation is the process that occurs when a subatomic particle collides with its respective antiparticle.
  11. 11. Ex . Positron + electron = energy </li></li></ul><li>A Feynman diagram of a positron and an electron annihilating into a photon (gamma rays).<br />
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  14. 14. Big bang <br />During big bang matter and antimatter was created in equal proportion.<br />But due to unknown reasons matter overtook antimatter and what's left is mostly matter!<br />This is called baryon asymmetry.<br />This is one among the greatest unsolved problems in physics.<br />
  15. 15. Storage <br />Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. <br />Antimatter that is composed of charged particles can be contained by a combination of an electric field and a magnetic field in a device known as a Penning trap. <br />
  16. 16. Penning trap<br />
  17. 17. Uses <br />Medical : Antimatter-matter reactions have practical applications in medical imaging, such as positron emission tomography (PET).<br />
  18. 18. POSITRON EMISSION TOMOGRAPHY (PET)<br />
  19. 19. Uses<br />Fuel : The reaction of 1 kg of antimatter with 1 kg of matter would produce 1.8×1017 J (180 petajoules) of energy or the rough equivalent of 43 megatons of TNT !!!<br />
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  21. 21. Disadvantages <br />Cost : To produce 1 gram of antimatter, CERN would need to spend 100 quadrillion dollars and run the antimatter factory for 100 billion years.<br />
  22. 22. One researcher of the CERN laboratories, which produces antimatter regularly, said:<br />“ If we could assemble all of the antimatter we've ever made at CERN and annihilate it with matter, we would have enough energy to light a single electric light bulb for a few minutes. “<br />

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