Report of Snowmass 21 Accelerator Frontier Topical Group 6 on Advanced Accelerators
C. Geddes, M. Hogan, P. Musumeci, R. Assmann

TL;DR
This report reviews innovative advanced accelerator concepts that utilize high electromagnetic fields and high-frequency interactions to achieve ultra-high acceleration gradients, aiming to reduce the size, cost, and power consumption of future high-energy physics machines.
Contribution
It provides a comprehensive overview of new R&D concepts in advanced accelerators, highlighting their potential to revolutionize particle acceleration technology and future collider designs.
Findings
High-gradient acceleration techniques can reach GeV/m levels.
Potential to significantly reduce collider size and costs.
Methods may lower power consumption for future accelerators.
Abstract
The Snowmass 2021 Accelerator Frontier topical group \# 6 on Advanced Accelerator Concepts, covers new R\&D concepts for particle acceleration, generation, and focusing. Based on community input, this report describes how leveraging these concepts to efficiently harness the interaction of charged particles with extremely high electromagnetic fields at very high frequencies can provide the keys to reaching ultra high acceleration gradients (GeV/m and beyond). These methods have potential to reduce the dimensions, C0 footprint, and costs of future high energy physics machines, with added potential to reduce power consumption for future e+e- and machines to and beyond 15 TeV energies. Techniques range from laser and beam driven plasma and advanced structure accelerators to advanced phase space manipulations and generation of beams with extreme parameters.
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Taxonomy
TopicsPlanetary Science and Exploration · Particle Accelerators and Free-Electron Lasers · Particle Detector Development and Performance
