Landau damping effects and evolutions of energy spread in small isochronous ring

Yingjie Li; Lanfa Wang; Fanglei Lin

doi:10.1016/j.nima.2014.06.070

Landau damping effects and evolutions of energy spread in small isochronous ring

Yingjie Li
, Lanfa Wang
, Fanglei Lin

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to finite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional 1D formula. The long-term evolution of energy spread is also studied by measurements and simulations.

Original language	English
Pages (from-to)	674-687
Number of pages	14
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	763
DOIs	https://doi.org/10.1016/j.nima.2014.06.070
State	Published - Nov 1 2014
Externally published	Yes

Funding

We would like to thank Prof. F. Marti and T. P. Wangler for their guidance. We are also grateful to Y.C. Wang, S. Y. Lee, K. Y. Ng, G. Stupakov, E. Pozdeyev, A. W. Chao, R. York, M. Syphers, V. Zelevinsky, J. Baldwin, and J. A. Rodriguez for their fruitful discussions and suggestions. This work was supported by NSF Grant # PHY 0606007 .

Keywords

2D dispersion relation
Energy spread
Isochronous ring
Landau damping
Microwave instability
Space charge field

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10.1016/j.nima.2014.06.070

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abstract = "This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to finite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional 1D formula. The long-term evolution of energy spread is also studied by measurements and simulations.",

keywords = "2D dispersion relation, Energy spread, Isochronous ring, Landau damping, Microwave instability, Space charge field",

author = "Yingjie Li and Lanfa Wang and Fanglei Lin",

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AU - Li, Yingjie

AU - Wang, Lanfa

AU - Lin, Fanglei

PY - 2014/11/1

Y1 - 2014/11/1

N2 - This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to finite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional 1D formula. The long-term evolution of energy spread is also studied by measurements and simulations.

AB - This paper presents the Landau damping effects on the microwave instability of a coasting long bunch in an isochronous ring due to finite energy spread and emittance. Our two-dimensional (2D) dispersion relation gives more accurate predictions of the microwave instability growth rates of short-wavelength perturbations than the conventional 1D formula. The long-term evolution of energy spread is also studied by measurements and simulations.

KW - 2D dispersion relation

KW - Energy spread

KW - Isochronous ring

KW - Landau damping

KW - Microwave instability

KW - Space charge field

UR - https://www.scopus.com/pages/publications/84907368454

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DO - 10.1016/j.nima.2014.06.070

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SN - 0168-9002

VL - 763

SP - 674

EP - 687

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Landau damping effects and evolutions of energy spread in small isochronous ring

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Keywords

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