Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider

A high luminosity muon collider requires single, intense, muon bunches with small emittances: just one of each sign. An efficient front end and a cooling channel have been designed and simulated within the collaboration of the Muon Accelerator Program. The muons are first bunched and phase rotated i...

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Main Authors: Yu Bao, Gail Hanson, Robert B. Palmer, Diktys Stratakis
Format: Article
Language:English
Published: American Physical Society 2016-03-01
Series:Physical Review Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevAccelBeams.19.031001
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author Yu Bao
Gail Hanson
Robert B. Palmer
Diktys Stratakis
author_facet Yu Bao
Gail Hanson
Robert B. Palmer
Diktys Stratakis
author_sort Yu Bao
collection DOAJ
description A high luminosity muon collider requires single, intense, muon bunches with small emittances: just one of each sign. An efficient front end and a cooling channel have been designed and simulated within the collaboration of the Muon Accelerator Program. The muons are first bunched and phase rotated into 21 bunches, and then cooled in six dimensions. When they are cool enough, they are merged into single bunches: one of each sign. The bunch merging scheme has been outlined with preliminary simulations in previous studies. In this paper we present a comprehensive design with its end-to-end simulation. The 21 bunches are first merged in longitudinal phase space into seven bunches. These are directed into seven “trombone” paths with different lengths, to bring them to the same time, and then merged transversely in a collecting “funnel” into the required single larger bunches. Detailed numerical simulations show that the 6D emittance of the resulting bunch reaches the parameters needed for high acceptance into the downstream cooling channel.
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spelling doaj.art-64d45b5518fb483cbb92d1bece288f742022-12-22T03:34:58ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882016-03-0119303100110.1103/PhysRevAccelBeams.19.031001Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon colliderYu BaoGail HansonRobert B. PalmerDiktys StratakisA high luminosity muon collider requires single, intense, muon bunches with small emittances: just one of each sign. An efficient front end and a cooling channel have been designed and simulated within the collaboration of the Muon Accelerator Program. The muons are first bunched and phase rotated into 21 bunches, and then cooled in six dimensions. When they are cool enough, they are merged into single bunches: one of each sign. The bunch merging scheme has been outlined with preliminary simulations in previous studies. In this paper we present a comprehensive design with its end-to-end simulation. The 21 bunches are first merged in longitudinal phase space into seven bunches. These are directed into seven “trombone” paths with different lengths, to bring them to the same time, and then merged transversely in a collecting “funnel” into the required single larger bunches. Detailed numerical simulations show that the 6D emittance of the resulting bunch reaches the parameters needed for high acceptance into the downstream cooling channel.http://doi.org/10.1103/PhysRevAccelBeams.19.031001
spellingShingle Yu Bao
Gail Hanson
Robert B. Palmer
Diktys Stratakis
Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
Physical Review Accelerators and Beams
title Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
title_full Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
title_fullStr Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
title_full_unstemmed Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
title_short Conceptual design and modeling of a six-dimensional bunch merging scheme for a muon collider
title_sort conceptual design and modeling of a six dimensional bunch merging scheme for a muon collider
url http://doi.org/10.1103/PhysRevAccelBeams.19.031001
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