Characterisation of the muon beams for the Muon Ionisation Cooling Experiment

TL;DR

This paper introduces a new single-particle measurement technique to characterize muon beams for the MICE project, providing detailed parameters that align well with simulations and meet experimental requirements.

Contribution

A novel single-particle emittance measurement method was developed and applied to characterize multiple muon beams for MICE, demonstrating its effectiveness and accuracy.

Findings

Measured muon beam parameters agree with simulations.

Beams meet the specified MICE requirements.

The technique effectively characterizes beam emittance and dispersion.

Abstract

A novel single-particle technique to measure emittance has been developed and used to characterise seventeen different muon beams for the Muon Ionisation Cooling Experiment (MICE). The muon beams, whose mean momenta vary from 171 to 281 MeV/c, have emittances of approximately 1.5--2.3 \pi mm-rad horizontally and 0.6--1.0 \pi mm-rad vertically, a horizontal dispersion of 90--190 mm and momentum spreads of about 25 MeV/c. There is reasonable agreement between the measured parameters of the beams and the results of simulations. The beams are found to meet the requirements of MICE.