High frequency impedance of small angle tapers and collimaters

doi:https://doi.org/10.1103/PhysRevSTAB.13.104401

Title: High frequency impedance of small angle tapers and collimaters

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Abstract

Collimators and transitions in accelerator vacuum chambers often include small-angle tapering to lower the wakefields generated by the beam. While the low-frequency impedance is well described by Yokoya's formula (for axisymmetric geometry), much less is known about the behavior of the impedance in the high-frequency limit. In this paper we develop an analytical approach to the high-frequency regime for round collimators and tapers. Our analytical results are compared with computer simulations using the code ECHO.

Authors:: Stupakov, G; Pdobedov, B

Publication Date:: 2010-10-04

Research Org.:: Brookhaven National Laboratory (BNL) National Synchrotron Light Source

Sponsoring Org.:: DOE - Office Of Science

OSTI Identifier:: 1001319

Report Number(s):: BNL-94345-2010-JA
Journal ID: ISSN 1098-4402; XX080B; R&D Project: LS001; KC0401030; TRN: US1100330

DOE Contract Number:: DE-AC02-98CH10886

Resource Type:: Journal Article

Journal Name:: Physical Review Special Topics - Accelerators and Beams

Additional Journal Information:: Journal Volume: 13; Journal Issue: 10; Journal ID: ISSN 1098-4402

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; ACCELERATORS; COLLIMATORS; COMPUTERIZED SIMULATION; GEOMETRY; IMPEDANCE; national synchrotron light source

Citation Formats


                    Stupakov, G, and Pdobedov, B. High frequency impedance of small angle tapers and collimaters.  United States: N. p., 2010. 
        Web.  doi:10.1103/PhysRevSTAB.13.104401.

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                    Stupakov, G, & Pdobedov, B. High frequency impedance of small angle tapers and collimaters.  United States.  https://doi.org/10.1103/PhysRevSTAB.13.104401

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                    Stupakov, G, and Pdobedov, B. Mon .  
        "High frequency impedance of small angle tapers and collimaters".  United States.  https://doi.org/10.1103/PhysRevSTAB.13.104401.

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@article{osti_1001319,

  title        = {High frequency impedance of small angle tapers and collimaters},

  author       = {Stupakov, G and Pdobedov, B},

  abstractNote = {Collimators and transitions in accelerator vacuum chambers often include small-angle tapering to lower the wakefields generated by the beam. While the low-frequency impedance is well described by Yokoya's formula (for axisymmetric geometry), much less is known about the behavior of the impedance in the high-frequency limit. In this paper we develop an analytical approach to the high-frequency regime for round collimators and tapers. Our analytical results are compared with computer simulations using the code ECHO.},

  doi          = {10.1103/PhysRevSTAB.13.104401},

  url          = {https://www.osti.gov/biblio/1001319},
  journal      = {Physical Review Special Topics - Accelerators and Beams},

  issn         = {1098-4402},

  number       = 10,

  volume       = 13,

  place        = {United States},

  year         = {2010},

  month        = {10}

}

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