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Shared CXS analysis
(part of theme Charge Exchange Spectroscopy)
Objective
Charge exchange spectroscopy is a central diagnostic for fusion laboratories in Europe and a key diagnostic for ITER. A shared objective is a common analysis framework and codes which will freely allow cross-studies and become established as the standard for ITER. The framework will have a machine independent core with interfacing access procedures for specific machines/spectroscopy/beams/data archiving. There are two shared developments (FZJ, IPP, & JET principals) (1) CXSFIT a spectral fitting code, designed for composite CXS spectral interval with sophisticated graphical user interface and capabilities - virtually complete; (2) NEW-CHEAP a CXS spectral line interpretative analysis for plasma parameter, impurity concentrations with sophisticated forward and reverse modelling, predictive capability and error propagation - in development. ADAS staff lead the practical development and maintain the system but it is independent of the ADAS Project. The objective is to enable and interface these codes and analysis methods for all European fusion laboratories and ultimately ITER. Embedding of these capabilities in the experimental programmes at Euratom Associated Laboratories. Such embedding is a central objective of the ADAS-EU proposals and the preparations for ITER. Certain orbit and geometric orientation effects will be calculated and embedded as universal corrections in NEW-CHEAP.
Specific tasks
- Enable CXSFIT operation for and create interfaces to requesting European fusion laboratory machines.
- Enable NEW-CHEAP operation for and create interfaces to requesting European fusion laboratory machines.
- Orbit/orientation correction implementation.
- Experimental exploitation/validation. Timing is subject to experimental campaigns and indeterminate at this stage.
- CXSFIT revision. Timing is subject to laboratory responses and indeterminate at this stage.
- NEW-CHEAP revision. Timing is subject to laboratory responses and indeterminate at this stage.