Studies of the twin helix parametric-resonance ionization cooling channel with cosyinfinity

J. A. Maloney, B. Erdelyi, S. A. Bogacz, Y. S. Derbenev, V. S. Morozov, A. Afanasev, K. B. Beard, R. P. Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A primary technical challenge to the design of a high luminosity muon collider is aneffective beam cooling system. An epicyclic twin-helix channel utilizingparametric-resonance ionization cooling (EPIC) has been proposed for the final 6D coolingstage. A proposed design of this twin-helix channel is presented that utilizes correlatedoptics between the horizontal and vertical betatron periods to simultaneously focustransverse motion of the beam in both planes. Parametric resonance is induced in bothplanes via a system of helical quadrupole harmonics. Ionization cooling is achieved viaperiodically placed wedges of absorbing material, with biperiodic rf cavities restoringlongitudinal momentum necessary to maintain stable orbit of the beam. COSY INFINITY isutilized to simulate the theory at first order. The motion of particles around a hyperbolicfixed point is tracked. Comparison is made between the EPIC cooling channel and standardionization cooling effects. Cooling effects are measured, after including stochasticeffects, for both a single particle and a distribution of particles.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Pages1428-1430
Number of pages3
StatePublished - 2012
Externally publishedYes
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA, United States
Duration: May 20 2012May 25 2012

Publication series

NameIPAC 2012 - International Particle Accelerator Conference 2012

Conference

Conference3rd International Particle Accelerator Conference 2012, IPAC 2012
Country/TerritoryUnited States
CityNew Orleans, LA
Period05/20/1205/25/12

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