JACoW logo

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.


https://doi.org/10.18429/JACoW-NAPAC2016-TUPOB44
Title Final 6d Muon Ionization Cooling Using Strong Focusing Quadrupoles
Authors
  • T.L. Hart, J.G. Acosta, L.M. Cremaldi, S.J. Oliveros, D.J. Summers
    UMiss, University, Mississippi, USA
  • D.V. Neuffer
    Fermilab, Batavia, Illinois, USA
Abstract Low emittance muon beam lines and muon colliders are potentially a rich source of BSM physics for future experimenters. A normalized transverse muon emittance of 280 microns has been achieved in simulation with short solenoids and a betatron function of 3 cm. Here we use ICOOL, G4Beamline, and MAD-X to explore using a flat 400 MeV/c muon beam and strong focusing quadrupoles to achieve a normalized transverse emittance of 100 microns and finish 6D cooling. The low beta regions, as low as 5 mm, produced by the quadrupoles are occupied by dense, low Z absorbers, such as lithium hydride or beryllium, that cool the beam. Equilibrium transverse emittance is linearly proportional to the beta function. Reverse emittance exchange with septa and/or wedges is then used to decrease transverse emittance from 100 to 25 microns at the expense of longitudinal emittance for a high energy lepton collider. Cooling challenges include chromaticity correction, momentum passband overlap, quadrupole acceptance, and staying in phase with RF.
Paper download TUPOB44.PDF [0.456 MB / 4 pages]
Export download ※ BibTeX LaTeXText/WordRISEndNote
Conference NAPAC2016, Chicago, IL, USA
Series North American Particle Accelerator Conference (3rd)
Proceedings Link to full NAPAC2016 Proccedings
Session Poster Session (MC1 & MC5)
Date 11-Oct-16   16:00–17:30
Main Classification 1: Circular and Linear Colliders
Sub Classification A09 - Muon Accelerators and Neutrino Factories
Keywords ion, emittance, quadrupole, betatron, collider
Publisher JACoW, Geneva, Switzerland
Editors Volker RW Schaa (GSI, Darmstadt, Germany); Maria Power (ANL, Argonne, IL, USA); Vladimir Shiltsev (FNAL, Batavia, IL, USA); Marion White (ANL, Argonne, IL, USA)
ISBN 978-3-95450-180-9
Published January 2017
Copyright
Copyright © 2017 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0