Integrated package of electron cyclotron emission imaging data processing and forward modeling in OMFIT.

Area of Science:

• Plasma physics
• Fusion energy research
• Data analysis

Background:

• Electron Cyclotron Emission Imaging (ECEI) is crucial for diagnosing plasma behavior.
• Analyzing ECEI data requires specialized tools for extracting key physics parameters.
• The DIII-D tokamak community needs efficient data analysis methods.

Purpose of the Study:

• To develop an integrated Electron Cyclotron Emission Imaging (ECEI) data analysis module within the OMFIT platform.
• To provide DIII-D tokamak users with accessible tools for plasma physics applications.
• To facilitate the extraction of detailed plasma properties from ECEI measurements.

Main Methods:

• Developed an ECEI data analysis module for the OMFIT platform.
• Automated retrieval of hardware setup and DIII-D plasma equilibria.
• Implemented spectral analysis for 2D electron temperature fluctuation imaging.
• Integrated tools for extracting radial structure, poloidal mode numbers, and dispersion relationships.
• Incorporated synthetic fluctuation propagation for forward modeling.

Main Results:

• Users can access ECEI spatial observation windows and perform spectral analysis.
• Generated 2D electron temperature fluctuation images.
• Extracted physics parameters like Alfven eigenmode structure and MHD dispersion relationships.
• Enabled forward modeling capabilities using synthetic fluctuations.

Conclusions:

• The developed ECEI module enhances data post-processing for DIII-D users.
• It simplifies the analysis of plasma dynamics and provides valuable insights into fusion phenomena.
• The module supports advanced physics applications and forward modeling tasks.