Symplectic modeling of beam loading in electromagnetic cavities

Abell, Dan T.; Cook, Nathan M.; Webb, Stephen D.

doi:10.1103/PhysRevAccelBeams.20.052002

Title: Symplectic modeling of beam loading in electromagnetic cavities

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Abstract

Simulating beam loading in radio frequency accelerating structures is critical for understanding higher-order mode effects on beam dynamics, such as beam break-up instability in energy recovery linacs. Full wave simulations of beam loading in radio frequency structures are computationally expensive, and while reduced models can ignore essential physics, it can be difficult to generalize. Here, we present a self-consistent algorithm derived from the least-action principle which can model an arbitrary number of cavity eigenmodes and with a generic beam distribution. It has been implemented in our new Open Library for Investigating Vacuum Electronics (OLIVE).

Authors:: Abell, Dan T.; Cook, Nathan M.; Webb, Stephen D.

Publication Date:: 2017-05-22

Research Org.:: Radiasoft LLC, LLC, Boulder, CO (United States); RadiaSoft LLC., Boulder, CO (United States)

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

OSTI Identifier:: 1358126

Alternate Identifier(s):: OSTI ID: 1389563; OSTI ID: 1393170

Grant/Contract Number:: SC0015211; FA9550-15-C-0031

Resource Type:: Published Article

Journal Name:: Physical Review Accelerators and Beams

Additional Journal Information:: Journal Name: Physical Review Accelerators and Beams Journal Volume: 20 Journal Issue: 5; Journal ID: ISSN 2469-9888

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 43 PARTICLE ACCELERATORS

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                    Abell, Dan T., Cook, Nathan M., and Webb, Stephen D. Symplectic modeling of beam loading in electromagnetic cavities.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevAccelBeams.20.052002.

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                    Abell, Dan T., Cook, Nathan M., & Webb, Stephen D. Symplectic modeling of beam loading in electromagnetic cavities.  United States.  https://doi.org/10.1103/PhysRevAccelBeams.20.052002

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                    Abell, Dan T., Cook, Nathan M., and Webb, Stephen D. Mon .  
"Symplectic modeling of beam loading in electromagnetic cavities".  United States.  https://doi.org/10.1103/PhysRevAccelBeams.20.052002.

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@article{osti_1358126,

  title        = {Symplectic modeling of beam loading in electromagnetic cavities},

  author       = {Abell, Dan T. and Cook, Nathan M. and Webb, Stephen D.},

  abstractNote = {Simulating beam loading in radio frequency accelerating structures is critical for understanding higher-order mode effects on beam dynamics, such as beam break-up instability in energy recovery linacs. Full wave simulations of beam loading in radio frequency structures are computationally expensive, and while reduced models can ignore essential physics, it can be difficult to generalize. Here, we present a self-consistent algorithm derived from the least-action principle which can model an arbitrary number of cavity eigenmodes and with a generic beam distribution. It has been implemented in our new Open Library for Investigating Vacuum Electronics (OLIVE).},

  doi          = {10.1103/PhysRevAccelBeams.20.052002},

  journal      = {Physical Review Accelerators and Beams},

  number       = 5,

  volume       = 20,

  place        = {United States},

  year         = {2017},

  month        = {5}

}

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