An Energy Recovery Linac for the LHeC

TL;DR

The paper discusses the design of an energy recovery linac for the LHeC, enabling high-energy electron-proton collisions with low power consumption through superconducting RF technology.

Contribution

It presents a novel design for a 50 GeV energy recovery linac integrated with the LHeC, utilizing superconducting RF technology for efficient high-energy electron beams.

Findings

Achieves 50 GeV electron beam energy with 100 MW power constraint.

Utilizes two 900 m superconducting linacs in a racetrack configuration.

Supports high luminosity for particle physics research.

Abstract

The LHeC provides an intense, high energy electron beam to collide with the LHC. It represents the highest energy application of energy recovery linac (ERL) technology which is increasingly recognized as one of the major pilot technologies for the development of particle physics because it utilizes and stimulates superconducting RF technology progress, and it increases intensity while keeping the power consumption low. The LHeC instantaneous luminosity is determined through the integrated luminosity goal. The electron beam energy is chosen to achieve TeV cms collision energy and enable competitive searches and precision Higgs boson measurements. The wall-plug power has been constrained to 100 MW. Two super-conducting linacs of about 900 m length, which are placed opposite to each other, accelerate the passing electrons by 8.3 GeV each. This leads to a final electron beam energy of about 50 GeV in a 3-turn racetrack energy recovery linac configuration.