Page 228 - Fundamentals of Magnetic Thermonuclear Reactor Design

Chapter 7

First Wall Components

Igor V. Mazul, Georgij L. Saksagansky
JSC D.V. Efremov Scientific Research Institute of Electrophysical Apparatus, Saint Petersburg,
Russia

Chapter Outline
7.1 Introduction 211 7.3.2 Component Modelling:
7.2 First-Wall Design Principles 216 Technological
7.2.1 Design Algorithm 216 and Testing Facilities 230
7.2.2 Initial Stage Design 219 7.3.3 Prevention
7.2.3 Estimation of the of Destructive Events 234
Engineering and Physical 7.4 Next-Generation Reactor
Characteristics First Wall 236
of the First-Wall 7.4.1 Challenges 236
Components 220 7.4.2 Possible Engineering
7.3 ITER First Wall 226 and Physical Solutions 237
7.3.1 First-Wall 7.5 Alternative Uses of First-Wall
Components 226 Technologies 245
References 245

7.1 INTRODUCTION

The first wall (FW) of a fusion reactor includes a set of in-chamber compo-
nents, or structures, located within the chamber cavity and facing the plasma.
This term also refers to the interior surface of the reactor closest to the plas-
ma. Shaping the plasma profile, the FW acts as a shield for the magnetic fu-
sion reactor (MFR) systems, protecting them from particle and radiant energy
fluxes emitted by the plasma, excluding neutrons. The FW structural materi-
als and design solutions must meet the MFR integrated optimisation design
criterion for minimising the generation and introduction to the plasma of ex-
trinsic (‘non-hydrogen’) particles. A reflection of how important it is for the
fusion science and plasma physics community is the fact that issues of concern

Fundamentals of Magnetic Thermonuclear Reactor Design. http://dx.doi.org/10.1016/B978-0-08-102470-6.00007-X
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