Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak

Ding, W. X.; Liu, H. Q.; Qian, J. P.; Brower, D. L.; Xiao, B. J.; Chen, J.; Zou, Z. Y.; Jie, Y. X.; Luo, Z. P.; Gong, X. Z.; Hu, L. Q.; Wan, B. N.

doi:10.1063/1.5035280

Title: Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak

Abstract

Vertical instability control in an elongated plasma is highly desirable for a tokamak reactor. A multi-channel 694 GHz far-infrared laser-based polarimeter-interferometer system has been used to provide a non-inductive vertical position measurement in the long-pulse EAST tokamak. A detailed comparison of vertical position measurements by polarimetry and external inductive flux loops has been used to validate Faraday-effect polarimetry as an accurate high-time response vertical position sensor.

Authors:

Ding, W. X. ^[1];

^[2]; Qian, J. P. ^[2]; Brower, D. L. ^[1]; Xiao, B. J. ^[2];

^[1]; Zou, Z. Y. ^[2]; Jie, Y. X. ^[2]; Luo, Z. P. ^[2]; Gong, X. Z. ^[2]; Hu, L. Q. ^[2];

^[2]

Univ. of California, Los Angeles, CA (United States)
Chinese Academy of Science (CAS), Hefei (China)

Publication Date:: Fri Jul 20 00:00:00 EDT 2018

Research Org.:: Univ. of California, Los Angeles, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Magnetic Confinement Fusion Program of China; National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1611427

Alternate Identifier(s):: OSTI ID: 1461036

Grant/Contract Number:: SC0010469; 2014GB106002; 11375237; 11505238

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 89; Journal Issue: 10; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; instruments & instrumentation; physics

Citation Formats


                    Ding, W. X., Liu, H. Q., Qian, J. P., Brower, D. L., Xiao, B. J., Chen, J., Zou, Z. Y., Jie, Y. X., Luo, Z. P., Gong, X. Z., Hu, L. Q., and Wan, B. N. Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak.  United States: N. p., 2018. 
Web.  doi:10.1063/1.5035280.

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                    Ding, W. X., Liu, H. Q., Qian, J. P., Brower, D. L., Xiao, B. J., Chen, J., Zou, Z. Y., Jie, Y. X., Luo, Z. P., Gong, X. Z., Hu, L. Q., & Wan, B. N. Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak.  United States.  https://doi.org/10.1063/1.5035280

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                    Ding, W. X., Liu, H. Q., Qian, J. P., Brower, D. L., Xiao, B. J., Chen, J., Zou, Z. Y., Jie, Y. X., Luo, Z. P., Gong, X. Z., Hu, L. Q., and Wan, B. N. Fri .  
"Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak".  United States.  https://doi.org/10.1063/1.5035280.  https://www.osti.gov/servlets/purl/1611427.

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@article{osti_1611427,

  title        = {Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak},

  author       = {Ding, W. X. and Liu, H. Q. and Qian, J. P. and Brower, D. L. and Xiao, B. J. and Chen, J. and Zou, Z. Y. and Jie, Y. X. and Luo, Z. P. and Gong, X. Z. and Hu, L. Q. and Wan, B. N.},

  abstractNote = {Vertical instability control in an elongated plasma is highly desirable for a tokamak reactor. A multi-channel 694 GHz far-infrared laser-based polarimeter-interferometer system has been used to provide a non-inductive vertical position measurement in the long-pulse EAST tokamak. A detailed comparison of vertical position measurements by polarimetry and external inductive flux loops has been used to validate Faraday-effect polarimetry as an accurate high-time response vertical position sensor.},

  doi          = {10.1063/1.5035280},

  journal      = {Review of Scientific Instruments},

  number       = 10,

  volume       = 89,

  place        = {United States},

  year         = {Fri Jul 20 00:00:00 EDT 2018},

  month        = {Fri Jul 20 00:00:00 EDT 2018}

}

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Cited by: 6 works

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Works referenced in this record:

Faraday-effect polarimeter-interferometer system for current density measurement on EAST
journal, November 2014

Liu, H. Q.; Jie, Y. X.; Ding, W. X.
Review of Scientific Instruments, Vol. 85, Issue 11
DOI: 10.1063/1.4889777

Reflectometry-based plasma position feedback control demonstration at ASDEX Upgrade
journal, March 2012

Santos, J.; Guimarãis, L.; Zilker, M.
Nuclear Fusion, Vol. 52, Issue 3
DOI: 10.1088/0029-5515/52/3/032003

Plasma position detection and control in the TEXTOR tokamak by means of a far-infrared interferometer/polarimeter
journal, December 1983

Soltwisch, H.
Nuclear Fusion, Vol. 23, Issue 12
DOI: 10.1088/0029-5515/23/12/012

Effects of stray lights on Faraday rotation measurement for polarimeter-interferometer system on EAST
journal, January 2018

Zou, Z. Y.; Liu, H. Q.; Ding, W. X.
Review of Scientific Instruments, Vol. 89, Issue 1
DOI: 10.1063/1.5012820

Vertical displacement events and halo currents
journal, December 1993

Gruber, O.; Lackner, K.; Pautasso, G.
Plasma Physics and Controlled Fusion, Vol. 35, Issue SB
DOI: 10.1088/0741-3335/35/sb/015

Laser polarimetric measurement of equilibrium and fluctuating magnetic fields in a reversed field pinch (invited)
journal, March 2003

Brower, D. L.; Ding, W. X.; Terry, S. D.
Review of Scientific Instruments, Vol. 74, Issue 3
DOI: 10.1063/1.1526927

A function parametrization method used for plasma current center estimation
journal, February 2013

Guo, Y.; Xiao, B. J.; Yang, F.
Plasma Physics and Controlled Fusion, Vol. 55, Issue 3
DOI: 10.1088/0741-3335/55/3/035006

Plasma Physics and Fusion Energy
journal, November 2008

Dolan, Thomas J.
Fusion Science and Technology, Vol. 54, Issue 4
DOI: 10.13182/fst08-a1917

Plasma position measurements from ordinary FM-CW reflectometry on ASDEX Upgrade
journal, March 2003

Santos, J.; Manso, M.; Varela, P.
Review of Scientific Instruments, Vol. 74, Issue 3
DOI: 10.1063/1.1530360

Status and prospects for mm-wave reflectometry in ITER
journal, August 2006

Vayakis, G.; Walker, C. I.; Clairet, F.
Nuclear Fusion, Vol. 46, Issue 9
DOI: 10.1088/0029-5515/46/9/s20

Impact of the Cotton–Mouton effect on Faraday polarimetry measurements using circular polarization
journal, June 2018

Chen, J.; Ding, W. X.; Brower, D. L.
Plasma Physics and Controlled Fusion, Vol. 60, Issue 8
DOI: 10.1088/1361-6587/aac708

Plasma Physics and Fusion Energy
journal, November 2008

Dolan, Thomas J.
Fusion Science and Technology, Vol. 54, Issue 4
DOI: 10.13182/fst08-a7361

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Title: Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak

Abstract

Citation Formats

Faraday-effect polarimeter-interferometer system for current density measurement on EAST journal, November 2014

Reflectometry-based plasma position feedback control demonstration at ASDEX Upgrade journal, March 2012

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Plasma Physics and Fusion Energy journal, November 2008

Faraday-effect polarimeter-interferometer system for current density measurement on EAST
journal, November 2014

Reflectometry-based plasma position feedback control demonstration at ASDEX Upgrade
journal, March 2012

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journal, December 1983

Effects of stray lights on Faraday rotation measurement for polarimeter-interferometer system on EAST
journal, January 2018

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journal, December 1993

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journal, November 2008