Ion temperature profiles from the plasma center to the edge of ASDEX combining high and low energy CX-diagnostics

H. Verbeek; O. Heinrich; R. Schneider; H. U. Fahrbach; W. Herrmann; J. Neuhauser; U. Stroth; D. Reiter

doi:10.1016/S0022-3115(06)80189-3

Ion temperature profiles from the plasma center to the edge of ASDEX combining high and low energy CX-diagnostics

H. Verbeek
, O. Heinrich
, R. Schneider
, H. U. Fahrbach
, W. Herrmann
, J. Neuhauser
, U. Stroth
, D. Reiter

Max Planck Institute for Plasma Physics
Euratom Association

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

10 Scopus citations

Abstract

The charge exchange (CX) neutral energy distributions from ASDEX measured with the conventional neutral particle analyzers (NPA) at energies >500 eV are combined with the low energy CX spectra from the low energy neutral analyzer (LENA). In the region of overlap their shapes fit each other very well. With the 3D EIRENE code the neutral gas was simulated and ion temperature (T_i) profiles from the center to the edge are obtained. The T_i values at the separatrix and the edge based on the LENA data are considerably lower than those suggested earlier from the NPA data. This is attributed to the different energy ranges-high energies for the NPA, low energies for LENA-that are used for the T_i evaluation.

Original language	English
Pages (from-to)	1027-1031
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	196-198
Issue number	C
DOIs	https://doi.org/10.1016/S0022-3115(06)80189-3
State	Published - 1 Dec 1992
Externally published	Yes

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10.1016/S0022-3115(06)80189-3

Cite this

@article{cac7be03517f430683bfce1e2788c8ba,

title = "Ion temperature profiles from the plasma center to the edge of ASDEX combining high and low energy CX-diagnostics",

abstract = "The charge exchange (CX) neutral energy distributions from ASDEX measured with the conventional neutral particle analyzers (NPA) at energies >500 eV are combined with the low energy CX spectra from the low energy neutral analyzer (LENA). In the region of overlap their shapes fit each other very well. With the 3D EIRENE code the neutral gas was simulated and ion temperature (Ti) profiles from the center to the edge are obtained. The Ti values at the separatrix and the edge based on the LENA data are considerably lower than those suggested earlier from the NPA data. This is attributed to the different energy ranges-high energies for the NPA, low energies for LENA-that are used for the Ti evaluation.",

author = "H. Verbeek and O. Heinrich and R. Schneider and Fahrbach, \{H. U.\} and W. Herrmann and J. Neuhauser and U. Stroth and D. Reiter",

year = "1992",

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doi = "10.1016/S0022-3115(06)80189-3",

language = "English",

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TY - JOUR

T1 - Ion temperature profiles from the plasma center to the edge of ASDEX combining high and low energy CX-diagnostics

AU - Verbeek, H.

AU - Heinrich, O.

AU - Schneider, R.

AU - Fahrbach, H. U.

AU - Herrmann, W.

AU - Neuhauser, J.

AU - Stroth, U.

AU - Reiter, D.

PY - 1992/12/1

Y1 - 1992/12/1

N2 - The charge exchange (CX) neutral energy distributions from ASDEX measured with the conventional neutral particle analyzers (NPA) at energies >500 eV are combined with the low energy CX spectra from the low energy neutral analyzer (LENA). In the region of overlap their shapes fit each other very well. With the 3D EIRENE code the neutral gas was simulated and ion temperature (Ti) profiles from the center to the edge are obtained. The Ti values at the separatrix and the edge based on the LENA data are considerably lower than those suggested earlier from the NPA data. This is attributed to the different energy ranges-high energies for the NPA, low energies for LENA-that are used for the Ti evaluation.

AB - The charge exchange (CX) neutral energy distributions from ASDEX measured with the conventional neutral particle analyzers (NPA) at energies >500 eV are combined with the low energy CX spectra from the low energy neutral analyzer (LENA). In the region of overlap their shapes fit each other very well. With the 3D EIRENE code the neutral gas was simulated and ion temperature (Ti) profiles from the center to the edge are obtained. The Ti values at the separatrix and the edge based on the LENA data are considerably lower than those suggested earlier from the NPA data. This is attributed to the different energy ranges-high energies for the NPA, low energies for LENA-that are used for the Ti evaluation.

UR - https://www.scopus.com/pages/publications/17144466950

U2 - 10.1016/S0022-3115(06)80189-3

DO - 10.1016/S0022-3115(06)80189-3

M3 - Article

AN - SCOPUS:17144466950

SN - 0022-3115

VL - 196-198

SP - 1027

EP - 1031

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - C

ER -

Ion temperature profiles from the plasma center to the edge of ASDEX combining high and low energy CX-diagnostics

Abstract

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