FNAL LHC Accelerator Project
LHC IR Quadrupoles (MQXB) Index Page
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The U.S. LHC Accelerator Project focuses on the Interaction Regions (IRs) and the radio-frequency (RF) straight section of the LHC Accelerator. For the interaction regions, Fermilab, in collaboration with LBNL and BNL, is responsible for providing CERN with integrated inner triplet magnet systems. These superconducting magnets, which provide final focusing of the LHC beams at the interaction points, are one of the most challenging components of the machine. They must provide a field gradient of 205-215 T/m over a 70 mm aperture. They operate at 1.9 K, under heavy heat load due to secondary particles from beam-beam collisions. The LHC performance depends critically on their field quality. The project will develop, design and fabricate half of the quadrupole cold masses (superconducting coils, high-strength supporting collars, and magnetic flux return yoke), the reminder being provided by the KEK laboratory in Japan. The project will design and fabricate cryostats for all of the quadrupoles, and assemble both the U.S. built and the Japanese-built cold masses, together with correction coils and beam and cryogenic instrumentation provided by CERN, into complete systems. |
LHC IR Links |
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LHC Project Links |
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