Plasma-Material Interactions in a Controlled Fusion Reactor

This book is a primer on the interplay between plasma and materials in a fusion reactor, so-called plasmamaterials interactions (PMIs), highlighting materials and their influence on plasma through PMI. It aims to demonstrate that a plasma-facing surface (PFS) responds actively to fusion plasma and that the clarifying nature of PFS is indispensable to understanding the influence of PFS on plasma. It describes the modern insight into PMI, namely, relevant feedback to plasma performance from plasma-facing material (PFM) on changes in a material surface by plasma power load by radiation and particles, contrary to a conventional view that unilateral influence from plasma on PFM is dominant in PMI.

There are many books and reviews on PMI in the context of plasma physics, that is, how plasma or plasma confinement works in PMI. By contrast, this book features a materials aspect in PMI focusing on changes caused by heat and particle load from plasma: how PFMs are changed by plasma exposure and then, accordingly, how the changed PFM interacts with plasma.

Comprises a modern primer on plasmamaterials interactions from the materials points of view Is relevant to ITER, whose assembly started in 2020 Addresses the importance of power load by radiation and particles in plasmamaterials interactions Includes tritium fuel in plasma materials interaction

Auteur

Tetsuo Tanabe is a special-appointment professor at the Research Center for Artificial Photosynthesis (ReCAP), Osaka City University. His work is mainly concerned with nuclear materials, fusion engineering, and tritium science. He received his Doctor of Engineering from Osaka University in 1977. He has been a professor at Nagoya University and Kyushu University, and has served in his current position since 2017. He is now an emeritus professor at Nagoya University and Kyushu University.

Contenu

Introduction.- Discharges in Current Tokamaks.- Power Load on Plasma Facing Materials.- Responses of Plasma Facing Surfaces to Heat and Particle Loads.- Erosion and Deposition & their Influence on Plasma Behavior (Material Transport in Tokamak).- Material Modification by High Power Load and its Influence on Plasma.- Fundamentals of Hydrogen Recycling and Retention.- PMI in Large Tokamaks.- Estimation of T Retention in a Reactor.- Selection of PFM Materials.- Closing Remarks.