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

Abstract. This work proposes a new parametric approach to estimate the increase in the durability of the first wall in steady-state conditions. The operational gain in tokamak-type fusion systems is modeled by modeling degradation rates as scalable functions of attenuation, distributing all varying plasma stresses. Without aiming at the development of any extremely expensive material, the model examines how the effective redistribution of thermal, mechanical, and electromagnetic loads can be achieved. Under this approach, the lifespan of the first wall can be extended through thermal redistribution and material resonance. A simple scaling relationship is introduced in which the operational duration increases linearly with the attenuation factor applied to the cumulative degradation rates. This work is conceptual and intended for validation through simulations, promising no miracles, but only applied physics, without depending on sensitive material specifications.