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Resourcd File

  1. 1. “The experiment of a lifetime” SOPHIE CROOK, 2013
  2. 2. What is the universe made of? What is dark matter? How did it start? Physicists at CERN are seeking answers, using some of the world's most powerful particle accelerators
  3. 3. The CERN ComplexThe CERN Complex
  4. 4. About CERN • At CERN, the European Organization for Nuclear Research, physicists and engineers use the world's largest and most complex scientific equipment to study the basic components of matter - the fundamental particles. • The particles are made to collide together at close to the speed of light. The process gives the physicists clues about how the particles interact.
  5. 5. Equipment at CERN • The instruments used at CERN are particle accelerators and detectors. • Accelerators give the particles energy. Two beams of particles called hadrons — these are either protons or lead ions — will be sent hurtling around the ring in opposite directions. They'll travel close to the speed of light at very high energies, and are encouraged to collide. • Detectors observe and record the results of these collisions. The Super Proton Synchrotron (SPS) ACCELERATORThe Compact Muon Solenoid (CMS) DETECTOR
  6. 6. The Large Hadron Collider (LHC)
  7. 7. Why do we need CERN? • To answer some of the mysteries of the Universe. Physicists think that everything began around 13.7 billion years ago with the Big Bang. • To shed some light onto those things we don't yet understand about our Universe, it helps to look back to that first dramatic moment, to understand what ingredients went into making the world as we know it. • The high-energy collisions produced by the LHC will re-create the conditions that occurred in the moments just after the Big Bang. • Physicists hope that the collisions will create particles, even if only for a tiny instant, that have never been observed: they are the missing links of modern physics.
  8. 8. The Large Hadron Collider (LHC) • The Large Hadron Collider (LHC) is the world’s largest and most powerful particle accelerator. • The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles along the way.
  9. 9. Benefits of CERN (1) • The collisions at Cern will benefit our understanding and the scientific profession itself • Will we be fried by cosmic rays? Sucked into LHC- produced black holes? Hoovered up by wormholes to be dumped in a parallel Universe in another time? No, no and no. • The LHC can do nothing that nature hasn't done already, and we've survived it. It isn't expected to produce any black holes, and even if it does, they'll be extremely tiny, disappear in an instant, or be completely harmless.
  10. 10. Benefits of CERN (2) • These "technological spin-offs", of course, are still of great use in themselves. Working on something like the LHC provides engineers and physicists with skills that nobody else in the world has: many of the cryogenic experts responsible for cooling the entire system to - 271C (-456F) - creating as they go "the world's largest fridge" - have already moved on to work at the ITER fusion reactor project in France, which is hoping to solve the world's energy needs. Also, the particle detectors have made today's PET scanners, which aid cancer treatment, while CERN's computer network is a feat of technology in itself, prepared at it is to handle 15 million gigabytes of data per year.
  11. 11. Conclusion • In conclusion, CERN is a financially viable project, which has created amazing opportunities for scientists worldwide. • Without CERN, we would be carrying on living our lives without solving some of the fundamental mysteries about our world that we live in. • CERN has provided us with PET scanners, something that provides many people with essential aid for vicious cancers.

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