Circular accelerators: Supply energy by RF cavities Beam has to be circulated through them to rebuild energy Magnets: Dipoles

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LHC accelerator

• Circular acceleratorsSupply energy by RF
  cavities Beam has to be circulated through
  them to rebuild energyMagnets Dipoles
  bend the beam Quadrupoles and multipoles
  focus the beam

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LHC Superconducting Dipoles
Superconducting magnets are cooled by liquid He
from 4.2K to 1.9K
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LHC Superconducting Dipoles
First full cell (120 m) 6 dipoles 4 quadrupoles
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LHC Superconducting Dipoles
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LHC Superconducting Dipoles
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LHC Superconducting Dipoles
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LHC Superconducting Dipoles
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LHC Superconducting Dipoles
Interconnection between two SC magnets

• To be connected
• Beam tubes
• Pipes for helium
• Cryostat
• Thermal shields
• Vacuum vessel
• Superconducting cables

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LHC Superconducting Dipoles

• More information
• http//teachers.web.cern.ch/teachers/archiv/HST200
  2/brochures/bitu/accelerators.htm
• Oliver BrueningIntroduction to Accelerators
• Lucio Rossi Introduction to Superconductivity
  and LHC magnets