Preliminary considerations about the injectors of the HE-LHC

TL;DR

This paper discusses the potential injector options for the proposed HE-LHC, focusing on extending existing infrastructure to achieve higher beam energies and considering the replacement of aging accelerators.

Contribution

It provides an overview of possible injector configurations and considerations for upgrading CERN's infrastructure for the HE-LHC.

Findings

Multiple injector options are outlined with their specific features.

Reuse of existing CERN infrastructure can minimize costs.

Upgrading or replacing aging accelerators is necessary for HE-LHC readiness.

Abstract

A hadron collider operating at an energy much larger than the LHC ("HE-LHC") would be a logical successor to the LHC itself, especially if its cost can be minimized by reusing a significant part of the CERN infrastructure like the existing tunnels and/or accelerators. The injector complex must however be extended to reach a beam energy of ~1.2 TeV and. in view of the time span of the HE-LHC project, the replacement of ageing accelerators can also be necessary. The main possible options are outlined together with their specificities.