Zuzana Maria Bo Emily Yianis 1
Circular accelerators:
• Supply energy by RF cavities
Beam has to be circulated through them to rebuild energy
• Magnets:
Dipoles –bend the beamQuadrupoles and multipoles – focus the
beam
LHC accelerator
Zuzana Maria Bo Emily Yianis 2
LHC Superconducting Dipoles
Superconducting magnets are cooled by liquid He from 4.2K to 1.9K
13 July 2004
Zuzana Maria Bo Emily Yianis 3
First full cell (120 m):
6 dipoles + 4 quadrupoles
LHC Superconducting Dipoles
Zuzana Maria Bo Emily Yianis 4
LHC Superconducting Dipoles
Zuzana Maria Bo Emily Yianis 5
LHC Superconducting Dipoles
Zuzana Maria Bo Emily Yianis 6
LHC Superconducting Dipoles
Zuzana Maria Bo Emily Yianis 7
LHC Superconducting Dipoles
Zuzana Maria Bo Emily Yianis 8
LHC Superconducting Dipoles
Interconnection between two SC magnets
To be connected:
• Beam tubes• Pipes for helium• Cryostat• Thermal shields• Vacuum vessel• Superconducting cables
13 July 2004
13 July 2004
Zuzana Maria Bo Emily Yianis 9
LHC Superconducting Dipoles
More information:
http://teachers.web.cern.ch/teachers/archiv/HST2002/brochures/bitu/accelerators.htm
Oliver Bruening:Introduction to Accelerators
Lucio Rossi: Introduction to Superconductivity and LHC magnets