Data for: Conceptual optimization of a collective Thomson scattering diagnostic for D/T ratio measurements in BEST

The files support reproduction and verification of the main numerical figures related to probe-frequency selection, ECE background estimation, scattering-geometry optimization, spectral power density, Fisher-information-like sensitivity metrics, frequency-resolution effects, and D/T fuel-ratio detectability.The dataset includes CSV files for cutoff/resonance-frequency curves and CTS/ECE spectral comparisons, MATLAB MAT files containing processed CTS spectral databases and species-resolved scattering contributions, and MATLAB scripts for regenerating the corresponding figures.

The shared spectral database contains scattering-angle grids, deuterium-fraction grids, frequency-shift grids, total and species-resolved spectral power densities, statistical-noise estimates, and precomputed sensitivity metrics.The data are processed simulation and analysis outputs rather than raw experimental measurements. They are intended to support figure reproduction, parameter checking, and reuse of the processed spectra under the assumptions described in the associated manuscript.