Upgrades Of the SPS, Transfer Line and LHC Injection Protection Devices For the HL-LHC Era

TL;DR

This paper discusses upgrades to protection devices in the SPS, transfer lines, and LHC injection areas to handle the higher beam intensities and brightness required for the HL-LHC, including theoretical and simulation studies.

Contribution

It presents the review and enhancement of existing protection devices to meet HL-LHC beam parameters, supported by theoretical and simulation analyses.

Findings

Protection devices' resistance to HL-LHC beams has been evaluated.

Simulation results inform upgrade strategies for protection systems.

Future prospects for device improvements are outlined.

Abstract

The challenging High Luminosity LHC (HL-LHC) beam requirements will lead in the future to unprecedented beam parameters along the LHC injector chain. In the SPS accelerator these requests translate into about a factor two higher intensity and brightness than the present design performance. In addition to the challenge of producing and accelerating such beams, these parameters affect the resistance of the existing equipment against beam impact. Most of the protection devices in the SPS ring, its transfer lines and the LHC injection areas will be put under operational constraints which are beyond their design specification. The equipment concerned has been reviewed and their resistance to the HL-LHC beams checked. Theoretical and simulation studies have been performed for the SPS beam scraping system, the protection devices and the dump absorbers of the SPS-to-LHC transfer lines, as well as for the LHC injection protection devices. The first results of these studies are reported, together with the future prospects.