Current Fusion Standards and Other Related Activities in Japan

Abstract

The Japan Society of Mechanical Engineers (JSME) published the construction standard for superconducting magnet structures for nuclear fusion facilities in December, 2008. The main target of the standard is tokamak-type fusion energy facilities, especially ITER, or the International Thermonuclear Experimental Reactor. The standard consists of seven articles and twelve mandatory and non-mandatory appendices to the articles; i.e., (1) Scope, roles and responsibilities, (2) Materials, (3) Structural design, (4) Fabrication and installation, (5) Non-destructive examination, (6) Pressure and leak testing, and (7) Terms used in general requirement. Following the publication of the standard, the procurement of toroidal coil coils has started since March, 2009 and it is revealed that the revision of the standard is necessary in many respects: e.g., (1) English translation of the standard is necessary for international procurement activities, (2) more wires other than prescribed in the standard are needed, etc. The present paper describes current fusion standards activities in JSME and other related fusion activities in Japan.