Implications of beam filling patterns on the design of recirculating Energy Recovery Linacs

Abstract

Recirculating energy recovery linacs are a promising technology for delivering high power particle beams ($\sim$GW) while only requiring low power ($\sim$kW) RF sources. This is achieved by decelerating the used bunches and using the energy they deposit in the accelerating structures to accelerate new bunches. We present studies of the impact of the bunch packet filling pattern on the performance of the accelerating RF system. We perform RF beam loading simulations under various noise levels and beam loading phases with different injection schemes. We also present a mathematical description of the RF system during the beam loading, which can identify optimal beam filling patterns under different conditions. The results of these studies have major implications for design constraints for future energy recovery linacs, by providing a quantitative metric for different machine designs and topologies.

arXiv commentBy changing the order that the bunches pass through the accelerating structures, we can optimize the stability and power consumptions of the cavity and rf system

References in corpus (4)

• A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
• Beam-Breakup Instability Theory for Energy Recovery Linacs
• PERLE: Powerful Energy Recovery Linac for Experiments - Conceptual Design Report
• Prediction of Beam Losses during Crab Cavity Quenches at the HL-LHC

Cited by in corpus (3)

• The Large Hadron-Electron Collider at the HL-LHC
• Filling Pattern Dependence of Regenerative Beam Breakup Instability in Energy Recovery Linacs
• Construction of Self-Consistent Longitudinal Matches in Multi-Pass Energy Recovery Linacs