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Design of 100 MHz RF cavity for the storage ring of the Iranian Light Source Facility (ILSF)

Ahmadiannamin, S. ; Rachti, M. Lamehi ; Davani, F. Abbasi ; Rahighi, J. ; Pirani, S. LU and Moradi, V. (2020) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 981.
Abstract

The Iranian Light Source Facility is a fourth-generation low emittance synchrotron light source under development in Iran. The design and in-house fabrication of RF cavities are key elements of this project. The choice of 100 MHz capacity loaded RF cavities offers many advantages compared to other cavity types due to a simpler geometry, ease of fabrication, and lower costs for manufacturing and RF power system development. Here we present comprehensive simulation studies of these accelerating RF cavities. This includes electromagnetic, mechanical, and thermal calculations. In addition, in the electromagnetic design section, discussions of higher-order modes, their impact on beam instabilities during machine operation and beam loading... (More)

The Iranian Light Source Facility is a fourth-generation low emittance synchrotron light source under development in Iran. The design and in-house fabrication of RF cavities are key elements of this project. The choice of 100 MHz capacity loaded RF cavities offers many advantages compared to other cavity types due to a simpler geometry, ease of fabrication, and lower costs for manufacturing and RF power system development. Here we present comprehensive simulation studies of these accelerating RF cavities. This includes electromagnetic, mechanical, and thermal calculations. In addition, in the electromagnetic design section, discussions of higher-order modes, their impact on beam instabilities during machine operation and beam loading effects are addressed. Finally, thermomechanical simulation results are presented. The fabrication of a 100 MHz capacity-loaded cavity has started based on the design presented in this article.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Capacity loaded RF cavity, Coupled bunch instabilities, Electromagnetic simulations, Higher order modes, Synchrotron radiation, Thermo-mechanical simulations, Tuning mechanisms
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
981
article number
164529
publisher
Elsevier
external identifiers
  • scopus:85089729171
ISSN
0168-9002
DOI
10.1016/j.nima.2020.164529
language
English
LU publication?
yes
id
246bc7cb-4e8b-4026-9fec-386d880ba3b5
date added to LUP
2020-09-03 14:23:25
date last changed
2023-04-10 19:55:40
@article{246bc7cb-4e8b-4026-9fec-386d880ba3b5,
  abstract     = {{<p>The Iranian Light Source Facility is a fourth-generation low emittance synchrotron light source under development in Iran. The design and in-house fabrication of RF cavities are key elements of this project. The choice of 100 MHz capacity loaded RF cavities offers many advantages compared to other cavity types due to a simpler geometry, ease of fabrication, and lower costs for manufacturing and RF power system development. Here we present comprehensive simulation studies of these accelerating RF cavities. This includes electromagnetic, mechanical, and thermal calculations. In addition, in the electromagnetic design section, discussions of higher-order modes, their impact on beam instabilities during machine operation and beam loading effects are addressed. Finally, thermomechanical simulation results are presented. The fabrication of a 100 MHz capacity-loaded cavity has started based on the design presented in this article.</p>}},
  author       = {{Ahmadiannamin, S. and Rachti, M. Lamehi and Davani, F. Abbasi and Rahighi, J. and Pirani, S. and Moradi, V.}},
  issn         = {{0168-9002}},
  keywords     = {{Capacity loaded RF cavity; Coupled bunch instabilities; Electromagnetic simulations; Higher order modes; Synchrotron radiation; Thermo-mechanical simulations; Tuning mechanisms}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}},
  title        = {{Design of 100 MHz RF cavity for the storage ring of the Iranian Light Source Facility (ILSF)}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2020.164529}},
  doi          = {{10.1016/j.nima.2020.164529}},
  volume       = {{981}},
  year         = {{2020}},
}