Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytic modeling of instabilities driven by higher-order modes in HLS
  II RF system with a higher-harmonic cavity   The utility of a passive fourth-harmonic cavity plays key role in suppressing
longitudinal beam instabilities in the electron storage ring and lengthens the
bunch by a factor of 2.6 for the phase II project of Hefei Light Source(HLS
II). Meanwhile, instabilities driven by higher-order modes(HOM) may limit the
performance of the higher-harmonic cavity. In this paper, the parasitic
coupled-bunch instability which is driven by narrow band parasitic modes and
the microwave instability which is driven by broadband HOM are both modeled
analytically. The analytic modeling results are in good agreement with that of
our previous simulation study and indicate that the passive fourth-harmonic
cavity suppresses parasitic coupled-bunch instabilities and the microwave
instability. The modeling suggests that a fourth-harmonic cavity may be
successfully used at HLS II.

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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
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The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci