Super Large Hadron Collider
Encyclopedia
The Super Large Hadron Collider (SLHC) is a proposed upgrade to the Large Hadron Collider
to be made after around ten years of operation. The upgrade aims at increasing the luminosity
of the machine by a factor of 10, up to 1035cm−2s−1, providing a better chance to see rare processes and improving statistically marginal measurements.
Many different paths exist for upgrading the collider. A collection of different designs of the high luminosity interaction regions is being maintained by the European Organization for Nuclear Research (CERN).
A workshop was held in 2006 to establish which are the most promising options.
A comprehensive press article on this workshop can be found at the CERN Courier.
A summary of the possible machine parameters can be found at Machine parameters collection.
Increasing LHC luminosity involves reduction of beam size at the collision point and either reduction of bunch length and spacing, or significant increase in bunch length and population. The maximum integrated luminosity increase of the existing options is about a factor of 4 higher than the LHC ultimate performance, unfortunately far below the LHC upgrade project's initial ambition of a factor of 10. However, at the latest LUMI'06 workshop, several suggestions were proposed that would boost the LHC peak luminosity by a factor of 10 beyond nominal towards 1035 cm−2s−1.
The resultant higher event rate poses important challenges for the particle detectors located in the collision areas.
Superconducting Proton Linac (SPL): Accelerating protons with superconducting radio frequency cavities to an energy of 5GeV.
Proton Synchrotron 2 (PS2): Accelerating the beam from 5GeV at injection to 50GeV at extraction.
Super Proton Synchroton (SPS) Upgraded: The present SPS would be substantially upgraded to handle an increased beam intensity from PS2.
Large Hadron Collider
The Large Hadron Collider is the world's largest and highest-energy particle accelerator. It is expected to address some of the most fundamental questions of physics, advancing the understanding of the deepest laws of nature....
to be made after around ten years of operation. The upgrade aims at increasing the luminosity
Luminosity
Luminosity is a measurement of brightness.-In photometry and color imaging:In photometry, luminosity is sometimes incorrectly used to refer to luminance, which is the density of luminous intensity in a given direction. The SI unit for luminance is candela per square metre.The luminosity function...
of the machine by a factor of 10, up to 1035cm−2s−1, providing a better chance to see rare processes and improving statistically marginal measurements.
Many different paths exist for upgrading the collider. A collection of different designs of the high luminosity interaction regions is being maintained by the European Organization for Nuclear Research (CERN).
A workshop was held in 2006 to establish which are the most promising options.
A comprehensive press article on this workshop can be found at the CERN Courier.
A summary of the possible machine parameters can be found at Machine parameters collection.
Increasing LHC luminosity involves reduction of beam size at the collision point and either reduction of bunch length and spacing, or significant increase in bunch length and population. The maximum integrated luminosity increase of the existing options is about a factor of 4 higher than the LHC ultimate performance, unfortunately far below the LHC upgrade project's initial ambition of a factor of 10. However, at the latest LUMI'06 workshop, several suggestions were proposed that would boost the LHC peak luminosity by a factor of 10 beyond nominal towards 1035 cm−2s−1.
The resultant higher event rate poses important challenges for the particle detectors located in the collision areas.
Injector upgrade
As part of the Phase 2 Super LHC, significant changes would be made to the proton injector.Superconducting Proton Linac (SPL): Accelerating protons with superconducting radio frequency cavities to an energy of 5GeV.
Proton Synchrotron 2 (PS2): Accelerating the beam from 5GeV at injection to 50GeV at extraction.
Super Proton Synchroton (SPS) Upgraded: The present SPS would be substantially upgraded to handle an increased beam intensity from PS2.