Front End And HFOFO Snake For a Muon Facility

TL;DR

This paper discusses the design and status of an HFOFO Snake cooling channel for muons, crucial for neutrino factories and muon colliders, focusing on capturing, bunching, and cooling muons from proton sources.

Contribution

It presents the design and variations of the HFOFO Snake cooling channel, a novel approach for simultaneous transverse and longitudinal cooling of muons.

Findings

The HFOFO Snake effectively cools both {}+ and {}- muons.

Design variations improve cooling efficiency and adaptability.

The status report indicates progress towards practical implementation.

Abstract

A neutrino factory or muon collider requires the capture and cooling of a large number of muons. Scenarios for capture, bunching, phase-energy rotation and initial cooling of {\mu}'s produced from a proton source target have been developed, for neutrino factory and muon collider scenarios. They require a drift section from the target, a bunching section and a {\phi}-{\delta}E rotation section leading into the cooling channel. The currently preferred cooling channel design is an "HFOFO Snake" configuration that cools both {\mu}+ and {\mu}- transversely and longitudinally. The status of the design is presented and variations are discussed.