• Open Access

Minimizing emittance growth via low emittance transfer

Chuan Zhang
Phys. Rev. Accel. Beams 25, 034201 – Published 9 March 2022

Abstract

The longitudinal-transverse coupling is an important source for space-charge-induced emittance growth in high intensity proton and ion linacs. Different from the equipartitioning method which tries to avoid the longitudinal-transverse coupling, a new design approach has been developed to minimize emittance growth via the low emittance transfer enabled by holding the ratio of longitudinal emittance to transverse emittance in the range of 0.9–1.4. Using a high intensity radio-frequency quadrupole accelerator as an example, a comparison between the new approach and the equipartitioning method has been made. Furthermore, input beams with non-nominal beam intensities and emittances have been applied to the designed accelerator. The simulation results show that the design obtained by following the new approach has a large tolerance for the off-design situations.

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  • Received 13 June 2021
  • Accepted 3 February 2022

DOI:https://doi.org/10.1103/PhysRevAccelBeams.25.034201

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Accelerators & Beams

Authors & Affiliations

Chuan Zhang*

  • GSI Helmholtz Centre for Heavy Ion Research, Planckstraße 1, D-64291 Darmstadt, Germany

  • *c.zhang@gsi.de

Article Text

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Issue

Vol. 25, Iss. 3 — March 2022

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