Browsing by Author "Geiger, B."
Now showing items 1-12 of 12
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Article
A fast edge charge exchange recombination spectroscopy system at the ASDEX Upgrade tokamak
(AIP Publishing, 2017)In this work, a new type of high through-put Czerny-Turner spectrometer has been developed which allows us to acquire ...
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Article
A forward model for the helium plume effect and the interpretation of helium charge exchange measurements at ASDEX Upgrade
(IOP Science, 2018-03-23)The analysis of the charge exchange measurements of helium is hindered by an additional emission contributing to the ...
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Article
Combination of fast-ion diagnostics in velocity-space tomographies
(IOP Publishing, 2013-06)Fast-ion Dα (FIDA) and collective Thomson scattering (CTS) diagnostics provide indirect measurements of fastion velocity ...
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Article
Evaluation of impurity densities from charge exchange recombination spectroscopy measurements at ASDEX Upgrade
(Institute of Physics Publishing, 2018-07-26)At ASDEX upgrade (AUG) a new framework for the evaluation of impurity densities based on measurements from charge exchange ...
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Article
Extensions to the charge exchange recombination spectroscopy diagnostic suite at ASDEX Upgrade
(AIP Publishing, 2017)A new core charge exchange recombination spectroscopy diagnostic has been installed in the ASDEX Upgrade tokamak that is ...
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Article
Fast-ion D-alpha measurements at ASDEX Upgrade
(IOP Publishing, 2011-06)A fast-ion D-alpha (FIDA) diagnostic has been developed for the fully tungsten coated ASDEX Upgrade (AUG) tokamak using ...
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Fast-ion transport induced by Alfven eigenmodes in the ASDEX Upgrade tokamak
(IOP Publishing, 2011-10)A comprehensive suite of diagnostics has allowed detailed measurements of the Alfven eigenmode (AE) spatial ´ structure ...
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Article
Feasibility study for an edge main ion charge exchange recombination spectroscopy system at ASDEX Upgrade
(IOP Publishing, 2019)A feasibility study for a new edge main ion charge exchange recombination spectroscopy (CXRS) system at the ASDEX Upgrade ...
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Article
Measurement of a 2D fast-ion velocity distribution function by tomographic inversion of fast-ion D-alpha spectra
(OP Publishing, 2014)We present the first measurement of a local fast-ion 2D velocity distribution function f(v||, v⊥). To this end, we heated ...
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Measurement of a 2D fast-ion velocity distribution function by tomographic inversion of fast-ion D-alpha spectra
(IOP Publishing, 2014-02)We present the first measurement of a local fast-ion 2D velocity distribution function f (v , v⊥). To this end, we heated ...
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Article
Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak
(Institute of Physics Publishing, 2017)Recent upgrades to the FIDA (fast-ion D-alpha) diagnostic at ASDEX Upgrade allow to reconstruct the fast-ion phase space ...
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Article
Tomography of fast-ion velocity-space distributions from synthetic CTS and FIDA measurements
(IOP Publishing, 2012-10)We compute tomographies of 2D fast-ion velocity distribution functions from synthetic collective Thomson scattering (CTS) ...