Determination of plasma-ion velocity distribution via charge-exchange recombination spectroscopy
نویسندگان
چکیده
منابع مشابه
Development of the gas puff charge exchange recombination spectroscopy (GP-CXRS) technique for ion measurements in the plasma edge.
A novel charge-exchange recombination spectroscopy (CXRS) diagnostic method is presented, which uses a simple thermal gas puff for its donor neutral source, instead of the typical high-energy neutral beam. This diagnostic, named gas puff CXRS (GP-CXRS), is used to measure ion density, velocity, and temperature in the tokamak edge/pedestal region with excellent signal-background ratios, and has ...
متن کاملCharge exchange recombination spectroscopy measurements from multiple ion species on the Joint European Torus
multiple ion species on the Joint European Torus T.M. Biewer, Y. Andrew, R.E. Bell, K. Crombe, C. Giroud, N.C. Hawkes, D.L. Hillis, A.G. Meigs, C.R. Negus, A.D. Whiteford, K.-D. Zastrow, and JET EFDA contributors 1 Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2 EURATOM/UKAEA Fusion Assoc., Culham Science Center, Abingdon, OX14 3DB, UK 3 Princeton Plasma Physics Laboratory, Princeton,...
متن کاملA new diagnostic for ASDEX Upgrade edge ion temperatures by lithium-beam charge exchange recombination spectroscopy
The tokamak is the most advanced concept in toroidal magnetic confinement fusion. The H-mode plasma regime, default scenario of the next step experiment ITER, is characterized by an edge transport barrier, which is not yet fully explained by theory. Experimentally measured edge ion temperature profiles will help to test and develop models for these barriers. Transport theory on a basic level is...
متن کاملToroidal charge exchange recombination spectroscopy measurements on MST.
Charge exchange recombination spectroscopy measurements of the poloidal component of the C(+6) temperature and flow in the Madison Symmetric Torus have been vital in advancing the understanding of the ion dynamics in the reversed field pinch. Recent work has expanded the diagnostic capability to include toroidal measurements. A new toroidal view overcomes a small signal-to-background ratio (5%-...
متن کاملCoherence-imaging approach to time-resolved charge-exchange recombination spectroscopy in high-temperature plasma
A coherence-based, or interferometric approach to spectral analysis of charge-exchange recombination ~CXR! emission radiation from high-temperature plasma probed or heated using energetic neutral beams, offers a number of advantages over wavelength-domain instruments. The spectral-line shift and broadening are obtained from measurements of the spectral coherence at a given fixed time delay. The...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 1984
ISSN: 0556-2791
DOI: 10.1103/physreva.29.3288