Add to ORKGAbstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in machine studies since 2010, as a measure for increasing transverse and longitudinal instability thresholds, especially at low energy, for the LHC proton beams. After two years of machine studies and careful optimisation, the new Q20 optics became operational in September 2012 and steadily delivered beam to the LHC until the end of the run. This paper reviews the operational performance of the Q20 optics with respect to transverse and longitudinal beam characteristics in the SPS, enabling high brightness beams injected into the LHC. Aspects of longitudinal beam stability, transmission, high-energy orbit control and beam transfer are discussed
The presently known intensity and brightness limitations in the LHC Proton Injectors are reviewed an...
One of the main limitations for high intensity multibunch LHC proton beams in the SPS is imposed by ...
Some of the upgrade scenarios of the high-luminosity LHC require large intensity per bunch from the ...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in machine ...
The LHC injector upgrade project calls for a twofold increase in intensity of the SPS proton beam. I...
The optics of the SPS can be tuned to lower transition energy such that the slippage factor at injec...
A new optics for the SPS with lower transition energy was tested experimentally during 2010-2011, sh...
The performance of the CERN LHC will depend heavily on the high-brightness beam delivered by the inj...
A variety of low-intensity beams will be required for LHC commissioning. In contrast to the nominal ...
The LHC beam in the SPS is unstable with a threshold almost an order of magnitude below the nominal ...
The Large Hadron Collider (LHC) upgrade, which aims at reaching significantly higher luminosities at ...
The nominal operating scheme for feeding LHC with protons [1] makes use of the PS injectors complex....
In the context of the LHC operation with lead ions programme, a low beta insertion was implemented i...
Beams with proton bunches spaced at 12.5 ns and twice shorter than nominal, or spaced at 75 ns and t...
The presently known intensity and brightness limitations in the LHC Proton Injectors are reviewed an...
One of the main limitations for high intensity multibunch LHC proton beams in the SPS is imposed by ...
Some of the upgrade scenarios of the high-luminosity LHC require large intensity per bunch from the ...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in machine ...
The LHC injector upgrade project calls for a twofold increase in intensity of the SPS proton beam. I...
The optics of the SPS can be tuned to lower transition energy such that the slippage factor at injec...
A new optics for the SPS with lower transition energy was tested experimentally during 2010-2011, sh...
The performance of the CERN LHC will depend heavily on the high-brightness beam delivered by the inj...
A variety of low-intensity beams will be required for LHC commissioning. In contrast to the nominal ...
The LHC beam in the SPS is unstable with a threshold almost an order of magnitude below the nominal ...
The Large Hadron Collider (LHC) upgrade, which aims at reaching significantly higher luminosities at ...
The nominal operating scheme for feeding LHC with protons [1] makes use of the PS injectors complex....
In the context of the LHC operation with lead ions programme, a low beta insertion was implemented i...
Beams with proton bunches spaced at 12.5 ns and twice shorter than nominal, or spaced at 75 ns and t...
The presently known intensity and brightness limitations in the LHC Proton Injectors are reviewed an...
One of the main limitations for high intensity multibunch LHC proton beams in the SPS is imposed by ...
Some of the upgrade scenarios of the high-luminosity LHC require large intensity per bunch from the ...