HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR

E. A. Unterberg; O. Schmitz; D. H. Fehling; H. Stoschus; C. C. Klepper; J. M. Muñoz-Burgos; G. Van Wassenhove; D. L. Hillis

doi:10.1063/1.4739236

HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR

E. A. Unterberg, O. Schmitz, D. H. Fehling, H. Stoschus, C. C. Klepper, J. M. Muñoz-Burgos, G. Van Wassenhove, D. L. Hillis

Laboratory for Plasma Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Radial profiles of electron temperature and density are measured at high spatial (∼1mm) and temporal (≥10μs) resolution using a thermal supersonic helium jet. A highly accurate detection system is applied to well-developed collisional-radiative model codes to produce the profiles. Agreement between this measurement and an edge Thomson scattering measurement is found to be within the error bars (≲20%). The diagnostic is being used to give profiles near the ion cyclotron resonant heating antenna on TEXTOR to better understand RF coupling to the core.

Original language	English
Article number	10D722
Journal	Review of Scientific Instruments
Volume	83
Issue number	10
DOIs	https://doi.org/10.1063/1.4739236
Publication status	Published - Oct 2012

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Unterberg, E. A., Schmitz, O., Fehling, D. H., Stoschus, H., Klepper, C. C., Muñoz-Burgos, J. M., Van Wassenhove, G., & Hillis, D. L. (2012). HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR. Review of Scientific Instruments, 83(10), Article 10D722. https://doi.org/10.1063/1.4739236

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title = "HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR",

abstract = "Radial profiles of electron temperature and density are measured at high spatial (∼1mm) and temporal (≥10μs) resolution using a thermal supersonic helium jet. A highly accurate detection system is applied to well-developed collisional-radiative model codes to produce the profiles. Agreement between this measurement and an edge Thomson scattering measurement is found to be within the error bars (≲20%). The diagnostic is being used to give profiles near the ion cyclotron resonant heating antenna on TEXTOR to better understand RF coupling to the core.",

author = "Unterberg, {E. A.} and O. Schmitz and Fehling, {D. H.} and H. Stoschus and Klepper, {C. C.} and Mu{\~n}oz-Burgos, {J. M.} and {Van Wassenhove}, G. and Hillis, {D. L.}",

year = "2012",

month = oct,

doi = "10.1063/1.4739236",

language = "English",

volume = "83",

journal = "Review of Scientific Instruments",

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Unterberg, EA, Schmitz, O, Fehling, DH, Stoschus, H, Klepper, CC, Muñoz-Burgos, JM, Van Wassenhove, G & Hillis, DL 2012, 'HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR', Review of Scientific Instruments, vol. 83, no. 10, 10D722. https://doi.org/10.1063/1.4739236

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T2 - A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR

AU - Unterberg, E. A.

AU - Schmitz, O.

AU - Fehling, D. H.

AU - Stoschus, H.

AU - Klepper, C. C.

AU - Muñoz-Burgos, J. M.

AU - Van Wassenhove, G.

AU - Hillis, D. L.

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AB - Radial profiles of electron temperature and density are measured at high spatial (∼1mm) and temporal (≥10μs) resolution using a thermal supersonic helium jet. A highly accurate detection system is applied to well-developed collisional-radiative model codes to produce the profiles. Agreement between this measurement and an edge Thomson scattering measurement is found to be within the error bars (≲20%). The diagnostic is being used to give profiles near the ion cyclotron resonant heating antenna on TEXTOR to better understand RF coupling to the core.

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JF - Review of Scientific Instruments

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HELIOS: A helium line-ratio spectral-monitoring diagnostic used to generate high resolution profiles near the ion cyclotron resonant heating antenna on TEXTOR

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