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Atlas Detector

Atlas Detector. ATLAS Components. Discovers head-on collisions of protons of extraordinarily high energy. Inner Detector. Measures the momentum of each charged particle. Calorimeter. Measures the energies carried by particles. Muon Spectrometer. Identifies and measures muons.

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Atlas Detector

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  1. Atlas Detector

  2. ATLAS Components Discovers head-on collisions of protons of extraordinarily high energy

  3. Inner Detector Measures the momentum of each charged particle

  4. Calorimeter Measures the energies carried by particles

  5. Muon Spectrometer Identifies and measures muons

  6. Magnet System Bends charged particles for measuring momentum

  7. Semiconductor Tracker (SCT) Measures: • Momentum • Impact parameters • Vertex position

  8. Pixel Detector Determines: • Impact parameter resolution • Ability of the Inner Detector to find short- lived particles such as B hadrons

  9. Transition Radiation Tracker (TRT) Assists in electron identification Uses a system which includes Xenon gas and “straws” • Each straw is 4 mm in diameter and equipped with a 30 μm diameter gold-plated W-Re wire. • The maximum straw length is 144 cm in the barrel, which contains about 50 000 straws. • Endcaps contain about 320,000 radial straws.

  10. ATLAS ATLAS: • Is 45 meters long. • Is more than 25 meters high. • Weighs about 7,000 tons. Is half as big as the Notre Dame Cathedral in Paris. Weighs the same as the Eiffel Tower.

  11. ATLAS vs. LHC LHC: • Lies in a tunnel 27 kilometers (17 miles) in circumference. • Is 175 meters (574 ft.) beneath the Franco-Swiss border. • Workers include over 10,000 scientists and engineers from over 100 countries.

  12. Citations • http://atlas.ch/detector.html • http://atlas.ch/inner_detector3.html • http://visits.web.cern.ch/visits/guides/tools/manual/english/atlas.html • http://www.boston.com/bigpicture/2008/08/the_large_hadron_collider.html

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