Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance...

Area of Science:

• Fusion energy research
• Plasma physics
• Computational physics

Background:

• Accurate measurement of plasma parameters is crucial for fusion energy development.
• Understanding heat transport phenomena is essential for controlling fusion plasmas.
• Modulated electron cyclotron resonance heating (MECH) is a key technique for plasma control and diagnostics.

Purpose of the Study:

• To introduce a novel software application for analyzing fusion plasma data.
• To apply the sampling scope concept for high-resolution temporal reconstruction of Thomson scattering signals.
• To investigate heat pulse propagation dynamics under modulated electron cyclotron resonance heating (MECH).

Main Methods:

• Development of a software application implementing the sampling scope concept.
• Reconstruction of time-resolved Thomson scattering data.
• Analysis of heat pulse propagation using amplitude and delay time profiles.

Main Results:

• High temporal resolution reconstruction of Thomson scattering data was achieved.
• Amplitude and delay time profiles of heat pulse propagation were successfully obtained.
• Results demonstrated consistency between reconstructed profiles and MECH deposition locations (on-axis and off-axis).

Conclusions:

• The developed software provides a valuable tool for fusion research.
• The sampling scope application enables detailed analysis of transient plasma phenomena.
• The findings support the understanding of heat transport mechanisms in fusion devices.