Fast ion D-alpha measurements using a bandpass-filtered system on EAST

J. Zhang, J. Huang, J. F. Chang*, C. R. Wu, W. W. Heidbrink, M. Salewski, B. Madsen, Y. B. Zhu, M. G. von Hellermann, W. Gao, Z. Xu, B. Wan

*Corresponding author for this work

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Abstract

Based on the charge exchange reaction between fast ions and a neutral beam, fast ion features can be inferred from the spectrum of Doppler-shifted Balmer-alpha light from energetic hydrogenic atoms. In order to study the interaction between instabilities and fast-ion transport, recently we extended the fast ion D-alpha (FIDA) measurements by using a combination of a bandpass filter and a photomultiplier tube (PMT) (f-FIDA). A bandpass filter selects the desired spectral band from 651 nm to 654 nm before detection by the PMT. Preliminary data from the EAST tokamak show that the active signals have been detected from reneutralized beam ions along the vertical and tangential viewing geometries. The details will be presented in this paper to primarily address the specifications and performance of f-FIDA hardware components and preliminary FIDA measurements.
Original languageEnglish
Article number10D121
JournalReview of Scientific Instruments
Volume89
Issue number10
Number of pages5
ISSN0034-6748
DOIs
Publication statusPublished - 2018

Keywords

  • Optical Spectroscopy

Cite this

Zhang, J., Huang, J., Chang, J. F., Wu, C. R., Heidbrink, W. W., Salewski, M., ... Wan, B. (2018). Fast ion D-alpha measurements using a bandpass-filtered system on EAST. Review of Scientific Instruments, 89(10), [10D121]. https://doi.org/10.1063/1.5038828
Zhang, J. ; Huang, J. ; Chang, J. F. ; Wu, C. R. ; Heidbrink, W. W. ; Salewski, M. ; Madsen, B. ; Zhu, Y. B. ; von Hellermann, M. G. ; Gao, W. ; Xu, Z. ; Wan, B. / Fast ion D-alpha measurements using a bandpass-filtered system on EAST. In: Review of Scientific Instruments. 2018 ; Vol. 89, No. 10.
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title = "Fast ion D-alpha measurements using a bandpass-filtered system on EAST",
abstract = "Based on the charge exchange reaction between fast ions and a neutral beam, fast ion features can be inferred from the spectrum of Doppler-shifted Balmer-alpha light from energetic hydrogenic atoms. In order to study the interaction between instabilities and fast-ion transport, recently we extended the fast ion D-alpha (FIDA) measurements by using a combination of a bandpass filter and a photomultiplier tube (PMT) (f-FIDA). A bandpass filter selects the desired spectral band from 651 nm to 654 nm before detection by the PMT. Preliminary data from the EAST tokamak show that the active signals have been detected from reneutralized beam ions along the vertical and tangential viewing geometries. The details will be presented in this paper to primarily address the specifications and performance of f-FIDA hardware components and preliminary FIDA measurements.",
keywords = "Optical Spectroscopy",
author = "J. Zhang and J. Huang and Chang, {J. F.} and Wu, {C. R.} and Heidbrink, {W. W.} and M. Salewski and B. Madsen and Zhu, {Y. B.} and {von Hellermann}, {M. G.} and W. Gao and Z. Xu and B. Wan",
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language = "English",
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Zhang, J, Huang, J, Chang, JF, Wu, CR, Heidbrink, WW, Salewski, M, Madsen, B, Zhu, YB, von Hellermann, MG, Gao, W, Xu, Z & Wan, B 2018, 'Fast ion D-alpha measurements using a bandpass-filtered system on EAST', Review of Scientific Instruments, vol. 89, no. 10, 10D121. https://doi.org/10.1063/1.5038828

Fast ion D-alpha measurements using a bandpass-filtered system on EAST. / Zhang, J.; Huang, J.; Chang, J. F.; Wu, C. R.; Heidbrink, W. W.; Salewski, M.; Madsen, B.; Zhu, Y. B.; von Hellermann, M. G.; Gao, W.; Xu, Z.; Wan, B.

In: Review of Scientific Instruments, Vol. 89, No. 10, 10D121, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Fast ion D-alpha measurements using a bandpass-filtered system on EAST

AU - Zhang, J.

AU - Huang, J.

AU - Chang, J. F.

AU - Wu, C. R.

AU - Heidbrink, W. W.

AU - Salewski, M.

AU - Madsen, B.

AU - Zhu, Y. B.

AU - von Hellermann, M. G.

AU - Gao, W.

AU - Xu, Z.

AU - Wan, B.

PY - 2018

Y1 - 2018

N2 - Based on the charge exchange reaction between fast ions and a neutral beam, fast ion features can be inferred from the spectrum of Doppler-shifted Balmer-alpha light from energetic hydrogenic atoms. In order to study the interaction between instabilities and fast-ion transport, recently we extended the fast ion D-alpha (FIDA) measurements by using a combination of a bandpass filter and a photomultiplier tube (PMT) (f-FIDA). A bandpass filter selects the desired spectral band from 651 nm to 654 nm before detection by the PMT. Preliminary data from the EAST tokamak show that the active signals have been detected from reneutralized beam ions along the vertical and tangential viewing geometries. The details will be presented in this paper to primarily address the specifications and performance of f-FIDA hardware components and preliminary FIDA measurements.

AB - Based on the charge exchange reaction between fast ions and a neutral beam, fast ion features can be inferred from the spectrum of Doppler-shifted Balmer-alpha light from energetic hydrogenic atoms. In order to study the interaction between instabilities and fast-ion transport, recently we extended the fast ion D-alpha (FIDA) measurements by using a combination of a bandpass filter and a photomultiplier tube (PMT) (f-FIDA). A bandpass filter selects the desired spectral band from 651 nm to 654 nm before detection by the PMT. Preliminary data from the EAST tokamak show that the active signals have been detected from reneutralized beam ions along the vertical and tangential viewing geometries. The details will be presented in this paper to primarily address the specifications and performance of f-FIDA hardware components and preliminary FIDA measurements.

KW - Optical Spectroscopy

U2 - 10.1063/1.5038828

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