Add to ORKGA new optics for the SPS with lower transition energy was tested experimentally during 2010-2011, showing a significant increase of the single bunch instability thresholds at injection due to the 3-fold increase of the slip factor. The performed machine studies for different LHC beams and intensities are summarized in this paper. In particular, the search for the single bunch TMCI threshold in the new optics is presented. Observations on the longitudinal multibunch stability are compared between the nominal and the low-transition optics. Finally, optics variants with higher vertical tunes are discussed, which could allow to further increase the thresholds for TMCI and other vertical instabilities by reducing the vertical beta function
We present recent measurements demonstrating control of unstable beam motion in single bunch and bun...
This note summarizes two machine development (MD) studies aimed at determining the octupole current ...
A new optics was introduced in the SPS for improving beam stability at high intensity. For transferr...
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 ...
The optics of the SPS can be tuned to lower transition energy such that the slippage factor at injec...
The LHC injector upgrade project calls for a twofold increase in intensity of the SPS proton beam. I...
At the beginning of 2013 an extensive measurement campaign was carried out at the SPS in order to de...
The Large Hadron Collider (LHC) upgrade, which aims at reaching significantly higher luminosities at ...
An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in machine ...
In the framework of the LHC Injectors Upgrade (LIU), beams with about twice the intensity compared t...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
By increasing the difference between the beam energy and gamma transition one can, in theory, raise ...
The experimental studies done in the SPS in 2010 were devoted both to a validation of some already p...
We present recent measurements demonstrating control of unstable beam motion in single bunch and bun...
This note summarizes two machine development (MD) studies aimed at determining the octupole current ...
A new optics was introduced in the SPS for improving beam stability at high intensity. For transferr...
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 ...
The optics of the SPS can be tuned to lower transition energy such that the slippage factor at injec...
The LHC injector upgrade project calls for a twofold increase in intensity of the SPS proton beam. I...
At the beginning of 2013 an extensive measurement campaign was carried out at the SPS in order to de...
The Large Hadron Collider (LHC) upgrade, which aims at reaching significantly higher luminosities at ...
An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in machine ...
In the framework of the LHC Injectors Upgrade (LIU), beams with about twice the intensity compared t...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
Abstract An optics in the SPS with lower integer tunes (20 versus 26) was proposed and introduced in...
By increasing the difference between the beam energy and gamma transition one can, in theory, raise ...
The experimental studies done in the SPS in 2010 were devoted both to a validation of some already p...
We present recent measurements demonstrating control of unstable beam motion in single bunch and bun...
This note summarizes two machine development (MD) studies aimed at determining the octupole current ...
A new optics was introduced in the SPS for improving beam stability at high intensity. For transferr...