Publication Date

2013

Document Type

Dissertation/Thesis

First Advisor

Erdelyi, Bela

Degree Name

Ph.D. (Doctor of Philosophy)

Legacy Department

Department of Physics

LCSH

Particle accelerators; Parametric devices

Abstract

Muon colliders have been proposed for the next generation of particle accelerators that study high-energy physics at the energy and intensity frontiers. This dissertation examines muon cooling techniques, a critical aspect to the feasibility of these proposed machines. Muon cooling reduces the emittance of muon beams, a measurement of the phase space volume of the beam. Reducing emittance improves the luminosity and physics reach of these machines. Ionization cooling, the basic method for reducing muon beam emittance, is detailed, as well as various cooling channel proposals implementing this method. One particular implementation of ionization cooling is parametric-resonance ionization cooling (PIC). PIC is proposed as the final 6D cooling stage of a high-luminosity muon collider. It can also be used for final cooling in a muon-based Higgs factory. Adding the cooling methods of PIC offers the potential to reduce emittance beyond that achievable with ionization cooling alone. PIC theory is detailed and implemented in a magnetic channel based on the superposition of two helical dipole magnetic harmonics identical in gradient, period, and phase but with opposite helicities. This channel, known as the twin helix, is simulated so that the effects of PIC can be demonstrated.

Comments

Adviser: Bela Erdelyi.

Extent

xii, 148 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

Download

Share

COinS