HOM frequency control of SRF cavity in high current ERLs

Xu, Chen; Ben-Zvi, Ilan

doi:10.1016/j.nima.2017.11.074

Title: HOM frequency control of SRF cavity in high current ERLs

Abstract

The acceleration of high-current beam in Superconducting Radio Frequency (SRF) cavities is a challenging but essential for a variety of advanced accelerators. SRF cavities should be carefully designed to minimize the High Order Modes (HOM) power generated in the cavities by the beam current. The reduction of HOM power we demonstrate in a particular case can be quite large. This paper presents a method to systematically control the HOM resonance frequencies in the initial design phase to minimize the HOM power generation. This method is expected to be beneficial for the design of high SRF cavities addressing a variety of Energy Recovery Linac (ERL) applications.

Authors:

Xu, Chen ^[1]; Ben-Zvi, Ilan ^[2]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)

Publication Date:: Wed Dec 06 00:00:00 EST 2017

Research Org.:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1412773

Alternate Identifier(s):: OSTI ID: 1548930

Report Number(s):: BNL-114788-2017-JA
Journal ID: ISSN 0168-9002; R&D Project: KBCH139; KB0202011; TRN: US1800354

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Additional Journal Information:: Journal Volume: 883; Journal Issue: C; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS

Citation Formats


                    Xu, Chen, and Ben-Zvi, Ilan. HOM frequency control of SRF cavity in high current ERLs.  United States: N. p., 2017. 
Web.  doi:10.1016/j.nima.2017.11.074.

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                    Xu, Chen, & Ben-Zvi, Ilan. HOM frequency control of SRF cavity in high current ERLs.  United States.  https://doi.org/10.1016/j.nima.2017.11.074

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                    Xu, Chen, and Ben-Zvi, Ilan. Wed .  
"HOM frequency control of SRF cavity in high current ERLs".  United States.  https://doi.org/10.1016/j.nima.2017.11.074.  https://www.osti.gov/servlets/purl/1412773.

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@article{osti_1412773,

  title        = {HOM frequency control of SRF cavity in high current ERLs},

  author       = {Xu, Chen and Ben-Zvi, Ilan},

  abstractNote = {The acceleration of high-current beam in Superconducting Radio Frequency (SRF) cavities is a challenging but essential for a variety of advanced accelerators. SRF cavities should be carefully designed to minimize the High Order Modes (HOM) power generated in the cavities by the beam current. The reduction of HOM power we demonstrate in a particular case can be quite large. This paper presents a method to systematically control the HOM resonance frequencies in the initial design phase to minimize the HOM power generation. This method is expected to be beneficial for the design of high SRF cavities addressing a variety of Energy Recovery Linac (ERL) applications.},

  doi          = {10.1016/j.nima.2017.11.074},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = C,

  volume       = 883,

  place        = {United States},

  year         = {Wed Dec 06 00:00:00 EST 2017},

  month        = {Wed Dec 06 00:00:00 EST 2017}

}

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https://doi.org/10.1016/j.nima.2017.11.074

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Works referenced in this record:

Multiple bunch HOM evaluation for ERL cavities
journal, September 2017

Xu, Chen; Ben-Zvi, I.; Blaskiewicz, Michael M.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 867
DOI: 10.1016/j.nima.2017.05.024

Higher-order-mode (HOM) power in elliptical superconducting cavities for intense pulsed proton accelerators
journal, October 2002

Kim, Sang-ho; Doleans, Marc; Jeon, Dong-o
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 492, Issue 1-2
DOI: 10.1016/S0168-9002(02)01286-X

Ampere class linacs: Status report on the BNL cryomodule
journal, February 2006

Calaga, R.; Ben-Zvi, I.; Brennan, J.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 557, Issue 1
DOI: 10.1016/j.nima.2005.10.078

Works referencing / citing this record:

Studies of high order modes in asymmetric dual-axis cavity
journal, December 2018

Topp-Mugglestone, M.; Konoplev, I. V.; Zhang, H.
Applied Physics Letters, Vol. 113, Issue 24
DOI: 10.1063/1.5060725

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Title: HOM frequency control of SRF cavity in high current ERLs

Abstract

Citation Formats

Multiple bunch HOM evaluation for ERL cavities journal, September 2017

Higher-order-mode (HOM) power in elliptical superconducting cavities for intense pulsed proton accelerators journal, October 2002

Ampere class linacs: Status report on the BNL cryomodule journal, February 2006

Studies of high order modes in asymmetric dual-axis cavity journal, December 2018

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journal, September 2017

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journal, October 2002

Ampere class linacs: Status report on the BNL cryomodule
journal, February 2006

Studies of high order modes in asymmetric dual-axis cavity
journal, December 2018