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

Ahmadiannamin, Sasan; Rachti, M. Lamehi; Davani, F. Abbasi; Rahighi, J.; Pirani, Simona; Moradi, Vahid

doi:10.1016/j.nima.2020.164529

Nuclear Instruments and Methods in Physics Research Section A:

2020

DOI: 10.1016/j.nima.2020.164529

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

Sasan Ahmadiannamin

M. Lamehi Rachti

F. Abbasi Davani

et al.

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2023

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A low-frequency normal conducting cavity with higher-order mode damping for fourth-generation synchrotron radiation sources

Zhu,

Li,

et al. 2023

Review of Scientific Instruments

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The utilization of a low-frequency (<200 MHz) RF system in storage facilitates the attainment of ultra-low emittances in synchrotron light sources through on-axis injection. This paper focuses on the development of a low-frequency normal conducting (NC) cavity with higher-order mode (HOM) damping for fourth-generation synchrotron light sources. We propose a novel approach to achieve efficient HOM damping in a NC cavity by optimizing the lowest frequency HOM and implementing a beam-line absorber. Notably, unlike conventional NC cavities, the presence of a large beam tube for the beam-line absorber does not compromise the accelerating performance in a coaxial resonant cavity, enabling effective HOM damping while maintaining a high shunt impedance. Through simulations, the prototype design of a 166.6 MHz HOM-damped cavity demonstrates a fundamental mode impedance of ∼8 MΩ, with longitudinal and transverse HOM impedances below 2.0 and 50 kΩ/m, respectively.

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A low-frequency normal conducting cavity with higher-order mode damping for fourth-generation synchrotron radiation sources

Zhu,

Li,

et al. 2023

Review of Scientific Instruments

View full text Add to dashboard Cite

show abstract

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

Cited by 1 publication

References 6 publications

A low-frequency normal conducting cavity with higher-order mode damping for fourth-generation synchrotron radiation sources

A low-frequency normal conducting cavity with higher-order mode damping for fourth-generation synchrotron radiation sources

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