Simulation of Multipacting with Space Charge Effect

Gennady Romanov

doi:doi:10.11648/j.ajpa.20170506.15

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Simulation of Multipacting with Space Charge Effect

Gennady Romanov

Published in American Journal of Physics and Applications (Volume 5, Issue 6)

Received: 11 August 2017 Accepted: 25 September 2017 Published: 6 November 2017

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Abstract

The electron multiplication on surfaces exposed to an oscillating electromagnetic field causes the phenomenon of multipacting, which can degrade significantly the performance of vacuum RF devices, especially accelerating cavities. It is a serious obstacle to be avoided for normal operation of particle accelerator and their RF components. Many types of room temperature and superconducting accelerating cavities are designed and produced at Fermilab for different projects. The extensive simulations of multipacting in the cavities with updated material properties and comparison of the simulation results with experimental data are routinely performed during electromagnetic design of the cavities. The new advanced computing capabilities made it possible to take the space charge effect into account in the multipacting simulations. The basic new features of multipacting process that appear due to the space charge effect are shown for the classic case of the parallel plates and discussed. As the first practical application of the multipacting simulations with space charge effect the study of multipacting in the low-beta and high-beta 650 MHz elliptical superconducting cavities is also presented.

Published in	American Journal of Physics and Applications (Volume 5, Issue 6)
DOI	10.11648/j.ajpa.20170506.15
Page(s)	99-105
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Multipacting, Accelerator, Cavity, Secondary Emission, Space Charge

References

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[2]	Z. A. Conway et al, “Achieving High Peak Fields and Low Residual Resistance in Half-Wave Cavities”, in Proc. SRF’15, Whistler, BC, Canada, 2015, paper WEBA05, pp. 973-975.
[3]	Gennady Romanov, Paolo Berrutti and Timergali N. Khabiboulline, “Simulation of Multipacting in SC Low Beta Cavities at FNAL”, in Proc. IPAC’15, Richmond, Virginia, USA, 2015, paper MOPMA018, pp. 579-581.
[4]	D. K. Callebout, “Secondary Electron Resonance Discharge: I. Steady State by Debunching”, Physica, Issue 7, July 1963, pp. 784-802.
[5]	C. J. Lingwood et al, “Phase space analysis of multipactor saturation in rectangular waveguide”, Physics of Plasmas 19, 032106 (2012).
[6]	M. Buyanova et al, “Influence of secondary emission yield on the saturation properties of multipactor discharges between two parallel metal plates”, Physics of Plasmas 17, 043504 (2010).
[7]	E. Sorolla and M. Mattes, “Multipactor saturation in parallel-plate waveguides”, Phys. Plasmas 19, 072304 (2012).
[8]	A. J. Hatch and H. B. Williams, “Multipacting Modes of High-Frequency Gaseous Breakdown”, The Physical Review, 2nd series, Vol. 112, No. 3, November 1, 1958.
[9]	R. Seviour, “The Role of Elastic and Inelastic Reflection in Multipactor Discharges”, IEEE Trans. on Electron Devices, vol. 54, No 8, August, 2005.
[10]	G. Romanov, «Stochastic Features of Multipactor in Coaxial Waveguides for Travelling and Standing Waves», preprint PUB-11-003-TD, Fermilab, Batavia, IL 60510, USA, 2011.
[11]	P. Berutti, T. Khabiboulline, G. Romanov, «Multipactor Discharge in the PIP-II Superconducting Spoke Resonators», Fermilab, Technical division, Technical note TD-16-005, 2016.
[12]	D. Proch, D. Einfeld, R. Onken, and N. Steinhauser, “Measurement of multipacting currents of metal surfaces in RF fields”. WPQ24, IEEE Proceedings, PAC 95, 1776, 1996.
[13]	Liao Lang et al, “Multipacting Saturation in Parallel Plate and Micro-Pulse Electron Gun”, Chinese Phys. C, Volume 39, Number 2, March 2014.
[14]	Волков В. А., Ганичев Д. А., «Стационарное состояние вакуумного вторично-эмиссионного ВЧ разряда», Журн. техн. физ., 1982, т. 52, № 8, с. 1559-1563.
[15]	Ганичев Д. А., Станский В. А., Фридрихов А. С., «Экспериментальное исследование эмиссии вторичных электронов на свервысоких частотах», Изв. АН СССР, Сер. физ., 1971, т. 3 5, № 2, с. 268-269. 1982, т. 52, № 8, с. 1559-1563.
[16]	S. Riyopoulos, D. Chernin, D. Dialetis, “Theory of Electron Multipactor in Crossed Fields”, Physics of Plasmas, Issue 8, Volume 2, 1995, pp 3194 - 3213.
[17]	C. W. Hoover, Jr., and R. K. Smither, "Secondary Electron Resonance Discharge Mechanism”, Phys Rev. 98, 1149, (1955).
[18]	M. Siddiqi, R. Kishek, “Simulation of Ping-Pong Multipactor With Continuous Electron Seeding”, in Proc. NA-PAC’16, Chicago, IL, USA, 2017, paper MOPOB53, pp. 181-183.
[19]	S. Kazakov, I. Gonin and V. P. Yakovlev, “Multipactor Simu-lation in SC Elliptical Shape Cavities”, in Proc. IPAC’12, New Orleans, Virginia, USA, 2012, paper WEPPC051, pp. 2327-2329.
[20]	F. Marhauser et al, “Design, Fabrication and Testing of Me-dium-Beta 650 MHz SRF Cavity Prototypes for Project-X”, in Proc. IPAC’11, San Sebastián, Spain, 2011, paper MOPC114, pp. 343-345.
[21]	V. P. Yakovlev, private communication, April 2016.

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Gennady Romanov. (2017). Simulation of Multipacting with Space Charge Effect. American Journal of Physics and Applications, 5(6), 99-105. https://doi.org/10.11648/j.ajpa.20170506.15

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ACS Style

Gennady Romanov. Simulation of Multipacting with Space Charge Effect. Am. J. Phys. Appl. 2017, 5(6), 99-105. doi: 10.11648/j.ajpa.20170506.15

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AMA Style

Gennady Romanov. Simulation of Multipacting with Space Charge Effect. Am J Phys Appl. 2017;5(6):99-105. doi: 10.11648/j.ajpa.20170506.15

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@article{10.11648/j.ajpa.20170506.15,
  author = {Gennady Romanov},
  title = {Simulation of Multipacting with Space Charge Effect},
  journal = {American Journal of Physics and Applications},
  volume = {5},
  number = {6},
  pages = {99-105},
  doi = {10.11648/j.ajpa.20170506.15},
  url = {https://doi.org/10.11648/j.ajpa.20170506.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20170506.15},
  abstract = {The electron multiplication on surfaces exposed to an oscillating electromagnetic field causes the phenomenon of multipacting, which can degrade significantly the performance of vacuum RF devices, especially accelerating cavities. It is a serious obstacle to be avoided for normal operation of particle accelerator and their RF components. Many types of room temperature and superconducting accelerating cavities are designed and produced at Fermilab for different projects. The extensive simulations of multipacting in the cavities with updated material properties and comparison of the simulation results with experimental data are routinely performed during electromagnetic design of the cavities. The new advanced computing capabilities made it possible to take the space charge effect into account in the multipacting simulations. The basic new features of multipacting process that appear due to the space charge effect are shown for the classic case of the parallel plates and discussed. As the first practical application of the multipacting simulations with space charge effect the study of multipacting in the low-beta and high-beta 650 MHz elliptical superconducting cavities is also presented.},
 year = {2017}
}

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TY  - JOUR
T1  - Simulation of Multipacting with Space Charge Effect
AU  - Gennady Romanov
Y1  - 2017/11/06
PY  - 2017
N1  - https://doi.org/10.11648/j.ajpa.20170506.15
DO  - 10.11648/j.ajpa.20170506.15
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 99
EP  - 105
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20170506.15
AB  - The electron multiplication on surfaces exposed to an oscillating electromagnetic field causes the phenomenon of multipacting, which can degrade significantly the performance of vacuum RF devices, especially accelerating cavities. It is a serious obstacle to be avoided for normal operation of particle accelerator and their RF components. Many types of room temperature and superconducting accelerating cavities are designed and produced at Fermilab for different projects. The extensive simulations of multipacting in the cavities with updated material properties and comparison of the simulation results with experimental data are routinely performed during electromagnetic design of the cavities. The new advanced computing capabilities made it possible to take the space charge effect into account in the multipacting simulations. The basic new features of multipacting process that appear due to the space charge effect are shown for the classic case of the parallel plates and discussed. As the first practical application of the multipacting simulations with space charge effect the study of multipacting in the low-beta and high-beta 650 MHz elliptical superconducting cavities is also presented.
VL  - 5
IS  - 6
ER  -

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Author Information

Gennady Romanov

Fermi National Accelerator Laboratory, Batavia, Illinois, USA

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APA Style

Gennady Romanov. (2017). Simulation of Multipacting with Space Charge Effect. American Journal of Physics and Applications, 5(6), 99-105. https://doi.org/10.11648/j.ajpa.20170506.15

Copy | Download

ACS Style

Gennady Romanov. Simulation of Multipacting with Space Charge Effect. Am. J. Phys. Appl. 2017, 5(6), 99-105. doi: 10.11648/j.ajpa.20170506.15

Copy | Download

AMA Style

Gennady Romanov. Simulation of Multipacting with Space Charge Effect. Am J Phys Appl. 2017;5(6):99-105. doi: 10.11648/j.ajpa.20170506.15

Copy | Download

@article{10.11648/j.ajpa.20170506.15,
  author = {Gennady Romanov},
  title = {Simulation of Multipacting with Space Charge Effect},
  journal = {American Journal of Physics and Applications},
  volume = {5},
  number = {6},
  pages = {99-105},
  doi = {10.11648/j.ajpa.20170506.15},
  url = {https://doi.org/10.11648/j.ajpa.20170506.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpa.20170506.15},
  abstract = {The electron multiplication on surfaces exposed to an oscillating electromagnetic field causes the phenomenon of multipacting, which can degrade significantly the performance of vacuum RF devices, especially accelerating cavities. It is a serious obstacle to be avoided for normal operation of particle accelerator and their RF components. Many types of room temperature and superconducting accelerating cavities are designed and produced at Fermilab for different projects. The extensive simulations of multipacting in the cavities with updated material properties and comparison of the simulation results with experimental data are routinely performed during electromagnetic design of the cavities. The new advanced computing capabilities made it possible to take the space charge effect into account in the multipacting simulations. The basic new features of multipacting process that appear due to the space charge effect are shown for the classic case of the parallel plates and discussed. As the first practical application of the multipacting simulations with space charge effect the study of multipacting in the low-beta and high-beta 650 MHz elliptical superconducting cavities is also presented.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Simulation of Multipacting with Space Charge Effect
AU  - Gennady Romanov
Y1  - 2017/11/06
PY  - 2017
N1  - https://doi.org/10.11648/j.ajpa.20170506.15
DO  - 10.11648/j.ajpa.20170506.15
T2  - American Journal of Physics and Applications
JF  - American Journal of Physics and Applications
JO  - American Journal of Physics and Applications
SP  - 99
EP  - 105
PB  - Science Publishing Group
SN  - 2330-4308
UR  - https://doi.org/10.11648/j.ajpa.20170506.15
AB  - The electron multiplication on surfaces exposed to an oscillating electromagnetic field causes the phenomenon of multipacting, which can degrade significantly the performance of vacuum RF devices, especially accelerating cavities. It is a serious obstacle to be avoided for normal operation of particle accelerator and their RF components. Many types of room temperature and superconducting accelerating cavities are designed and produced at Fermilab for different projects. The extensive simulations of multipacting in the cavities with updated material properties and comparison of the simulation results with experimental data are routinely performed during electromagnetic design of the cavities. The new advanced computing capabilities made it possible to take the space charge effect into account in the multipacting simulations. The basic new features of multipacting process that appear due to the space charge effect are shown for the classic case of the parallel plates and discussed. As the first practical application of the multipacting simulations with space charge effect the study of multipacting in the low-beta and high-beta 650 MHz elliptical superconducting cavities is also presented.
VL  - 5
IS  - 6
ER  -

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