Higher Order Modes in Coupled Cavities of the Flash Module ACC39

I.R.R. Shinton; R.M. Jones; Z. Li; P. Zhang

Higher Order Modes in Coupled Cavities of the Flash Module ACC39

I.R.R. Shinton, R.M. Jones, Z. Li, P. Zhang

The University of Manchester

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Abstract

We analyse the higher order modes (HOM's) in the 3.9GHz bunch shaping cavities installed in the FLASH facility at DESY. A suite of finite element computer codes (including HFSS and ACE3P) and globalised scattering matrix calculations (GSM) are used to investigate the modes in these cavities. This study is primarily focused on the dipole component of the multiband expansion of the wakefield, with the emphasis being on the development of a HOM-based BPM system for ACC39. Coupled inter-cavity modes are simulated together with a limited band of trapped modes.

Original language	English
Title of host publication	Proceedings of IPAC2011
Publisher	JACoW
Pages	2301-2303
Number of pages	3
ISBN (Print)	978-92-9083-366-6
Publication status	Published - 2011
Event	2nd International Particle Accelerator Conference (IPAC'11) - San Sebastian, Spain Duration: 4 Sept 2011 → 9 Sept 2011

Conference

Conference	2nd International Particle Accelerator Conference (IPAC'11)
City	San Sebastian, Spain
Period	4/09/11 → 9/09/11

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title = "Higher Order Modes in Coupled Cavities of the Flash Module ACC39",

abstract = "We analyse the higher order modes (HOM's) in the 3.9GHz bunch shaping cavities installed in the FLASH facility at DESY. A suite of finite element computer codes (including HFSS and ACE3P) and globalised scattering matrix calculations (GSM) are used to investigate the modes in these cavities. This study is primarily focused on the dipole component of the multiband expansion of the wakefield, with the emphasis being on the development of a HOM-based BPM system for ACC39. Coupled inter-cavity modes are simulated together with a limited band of trapped modes.",

author = "I.R.R. Shinton and R.M. Jones and Z. Li and P. Zhang",

note = "Work supported in part by European Commission under the FP7 Research Infrastructures grant agreement No.227579.; 2nd International Particle Accelerator Conference (IPAC'11) ; Conference date: 04-09-2011 Through 09-09-2011",

year = "2011",

language = "English",

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T1 - Higher Order Modes in Coupled Cavities of the Flash Module ACC39

AU - Shinton, I.R.R.

AU - Jones, R.M.

AU - Li, Z.

AU - Zhang, P.

N1 - Work supported in part by European Commission under the FP7 Research Infrastructures grant agreement No.227579.

PY - 2011

Y1 - 2011

N2 - We analyse the higher order modes (HOM's) in the 3.9GHz bunch shaping cavities installed in the FLASH facility at DESY. A suite of finite element computer codes (including HFSS and ACE3P) and globalised scattering matrix calculations (GSM) are used to investigate the modes in these cavities. This study is primarily focused on the dipole component of the multiband expansion of the wakefield, with the emphasis being on the development of a HOM-based BPM system for ACC39. Coupled inter-cavity modes are simulated together with a limited band of trapped modes.

AB - We analyse the higher order modes (HOM's) in the 3.9GHz bunch shaping cavities installed in the FLASH facility at DESY. A suite of finite element computer codes (including HFSS and ACE3P) and globalised scattering matrix calculations (GSM) are used to investigate the modes in these cavities. This study is primarily focused on the dipole component of the multiband expansion of the wakefield, with the emphasis being on the development of a HOM-based BPM system for ACC39. Coupled inter-cavity modes are simulated together with a limited band of trapped modes.

M3 - Conference contribution

SN - 978-92-9083-366-6

SP - 2301

EP - 2303

BT - Proceedings of IPAC2011

PB - JACoW

T2 - 2nd International Particle Accelerator Conference (IPAC'11)

Y2 - 4 September 2011 through 9 September 2011

ER -

Higher Order Modes in Coupled Cavities of the Flash Module ACC39

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