A5093918412- Magnetic confinement fusion research
- Advanced MRI Techniques and Applications
- Advanced NMR Techniques and Applications
- Fusion materials and technologies
- Electron Spin Resonance Studies
- Superconducting Materials and Applications
- Laser-Plasma Interactions and Diagnostics
- Atomic and Subatomic Physics Research
- Laser-induced spectroscopy and plasma
Universidad de Sevilla
2024
Abstract In this work, the Coherence Imaging Spectroscopy technique is exploited for active charge exchange radiation measurements to infer high spatial resolution 2D ion temperature ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mi>T</mml:mi> <mml:mrow> <mml:mi>i</mml:mi> </mml:mrow> </mml:msub> </mml:math> ) maps in core region of Wendelstein 7-X plasmas. A synthetic model diagnostic developed and used optimization hardware components expected...
This paper presents an overview of recent hardware extensions and data analysis developments to the Wendelstein 7-X visible core spectroscopy systems. These include upgrades prepare in-vessel components for long-pulse operation, nine additional spectrometers, a new line sight array passive spectroscopy, coherence imaging charge exchange diagnostic. Progress in includes ion temperatures densities from multiple impurity species, statistical comparison with x-ray crystal spectrometer...
Coherence Imaging Charge Exchange Recombination Spectroscopy (CICERS) is an imaging diagnostic installed in Wendelstein 7-X from which 2D maps of ion temperature (Ti) and impurity density (nZ) are obtained. The improved spatial resolution coverage, as compared to standard eXchange (CXRS), with these parameters can be assessed, come at the expense spectral resolution, requiring development new strategies isolate active charge exchange contribution passive Bremsstrahlung radiation. In this...