A Parametric Model for Steady-State Gain Estimation in Tokamak Fusion Reactor

This work presents a parametric model for estimating steady-state gain in confined plasma systems, with emphasis on analytical tractability and compatibility with numerical simulation environments. The proposed formulation abstracts material-dependent and geometric factors into dimensionless parameters, allowing controlled exploration of system behavior without disclosure of proprietary or sensitive design details. The model is intended to support virtual validation workflows, sensitivity analysis, and comparative benchmarking against conventional steady-state assumptions. Results demonstrate internal consistency across steady-state regimes and indicate that the framework can be integrated into multiphysics simulation platforms for further investigation. This contribution aims to provide a reusable theoretical baseline for steady-state gain estimation under constrained disclosure conditions.