In order to achieve its ultra-low vertical emittance (1 pm) and high luminosity (of up to 230×
10 34 cm− 2 s− 1 per collision point), the e+ e− Future Circular Collider (FCC-ee) requires a …

In the context of the LHC Injectors Upgrade Project (LIU), the Proton Synchrotron Booster
(PSB) developed an H $^{-} $ charge exchange injection system. The four short rectangular …

Successful operation of large-scale particle accelerators depends on the precise correction
of magnet field or alignment errors present in the machine. In the Large Hadron Collider …

Operation of particle accelerators and correction of unavoidable magnet or alignment errors
critically depend on the assessment of both global and local observables such as tune or …

Accurate measurements of optics functions, β, α, D, are essential for proper operation of a
synchrotron both for machine protection and for performance. β functions can be obtained …

Optics Measurement and Correction Strategies for HL-LHC Page 1 CERN-ACC-2022-0004
22/01/2024 CERN-ACC-2022-0004 . rogelio.tomas@cern.ch Optics Measurement and …

K-Modulation of the quadrupoles closest to the interaction point (IP) has been an
indispensable tool to accurately measure the beta-function in the interaction point (β∗) in the …

A precise determination of the β function at different locations of an accelerator is essential
to allow accurate optics correction and to ensure high machine performance. The β function …

Possible circular colliders for the post-LHC era at CERN are being explored within the
framework of the Future Circular Collider (FCC) feasibility study. The first stage of the FCC …

SuperKEKB, an asymmetric electron-positron collider, has recently achieved the world
record instantaneous luminosity of 2.8× 10³⁴\si {cm⁻ ²s⁻ ¹} using crab-waist collision …