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

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

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  • Author: Zhang, J.

    Chinese Academy of Sciences, China

  • Author: Huang, J.

    Chinese Academy of Sciences, China

  • Author: Chang, J. F.

    Chinese Academy of Sciences, China

  • Author: Wu, C. R.

    Chinese Academy of Sciences, China

  • Author: Heidbrink, W.W.

    University of Science and Technology of China, China

  • Author: Salewski, M.

    Plasma Physics and Fusion Energy, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Madsen, B.

    Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: Zhu, Y. B.

    University of Science and Technology of China, China

  • Author: von Hellermann, M.G.

    Dutch Institute for Fundamental Energy Research, Netherlands

  • Author: Gao, W.W.

    Chinese Academy of Sciences, China

  • Author: Xu, Z.

    Shenzhen University, China

  • Author: Wan, B.

    Chinese Academy of Sciences, China

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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
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Optical Spectroscopy

ID: 154950999