Third Interger Resonance Slow Extraction Using RFKO at High Space Charge

TL;DR

This paper proposes using RFKO to achieve slow, resonant extraction of high-intensity proton beams at Fermilab, addressing space charge challenges for the Mu2e experiment through simulation-validated strategies.

Contribution

It introduces a novel application of RFKO for fine-tuning beam extraction under high space charge conditions, with demonstrated simulation feasibility.

Findings

RFKO can effectively control beam spill profile.

Simulation results support RFKO's feasibility for high-intensity extraction.

Strategies for RFKO implementation are discussed for Mu2e.

Abstract

A proposal to search for direct {\mu}-->e conversion at Fermilab requires slow, resonant extraction of an intense proton beam. Large space charge forces will present challenges, partly due to the substantial betatron tune spread. The main challenges will be maintaining a uniform spill profile and moderate losses at the septum. We propose to use "radio frequency knockout" (RFKO) for fine tuning the extraction. Strategies for the use of the RFKO method will be discussed here in the context of the Mu2e experiment. The feasibility of this method has been demonstrated in simulations.