A Review of Fusion and Tokamak Research Towards Steady-State Operation: A JAEA Contribution
نویسنده
چکیده
Providing a historical overview of 50 years of fusion research, a review of the fundamentals and concepts of fusion and research efforts towards the implementation of a steady state tokamak reactor is presented. In 1990, a steady-state tokamak reactor (SSTR) best utilizing the bootstrap current was developed. Since then, significant efforts have been made in major tokamaks, including JT-60U, exploring advanced regimes relevant to the steady state operation of tokamaks. In this paper, the fundamentals of fusion and plasma confinement, and the concepts and research on current drive and MHD stability of advanced tokamaks towards realization of a steady-state tokamak reactor are reviewed, with an emphasis on the contributions of the JAEA. Finally, a view of fusion energy utilization in the 21st century is introduced.
منابع مشابه
Assessment of Tokamak Plasma Operation Modes as Fusion Power Plants: the Starlite Study
During the past several years, the ARIES/Starlite Team has investigated the feasibility and potential features of tokamak fusion power plants. The research also has aimed at identifying both the trade-offs that lead to the optimal regime of operation for a tokamak power plant and the critical plasma physics and technology issues. During the initial phase of the Starlite study, an assessment of ...
متن کاملPhysics of plasma control towards steady-state operation of ITER
ITER is a fusion experimental reactor to show scientific and technological feasibility of fusion energy. It is designed to produce fusion power of 500MW for 300-500 seconds with fusion energy gain Q at least 10 (Q ≥10) [1], [2]. ITER should show scientific and technological feasibility of fusion energy as one step to DEMO, which produces electricity by fusion energy. Although design of DEMO wil...
متن کاملRisk Analyses and Optimization of Safe Operation
As everyone known the significant progresses have been achieved on tokamaks, which means that the scientific feasibility of tokamak reactor for fusion energy has been achieved (Q=1). But for commercial power plan the economics will be very important. Therefore to find improved (advanced) confinement operation model is the popular topic always for tokamak research. On other hand if any tokamak o...
متن کاملImpact of Advanced Physics and Technology on the Attractiveness of Tokamak Fusion Power Plants
During the past ten years, the ARIES Team has studied a variety of tokamak power plants with different degrees of extrapolation in plasma physics and technology from present database. Continuation of research has allowed us to apply lessons learned from each ARIES design to the next. The results of ARIES tokamak power plant studies provide a large body of data that highlight the contribution, t...
متن کاملCharacteristics of Rf-driven Steady State Tokamak Power Reactors
The use of lower hybrid waves for current drive in steady state tokamak power reactors is studied. Constraints imposed by rf wave propagation are considered in detail. The effect of decoupling of electron and ion temperatures is studied and is found to enhance significantly the ratio of fusion power to dissipated power. Tradeoffs for parameters of rf driven steady state reactors are determined....
متن کامل