[Table of Contents]

Plasma and Fusion Research

Volume 9, 3405049 (2014)

Regular Articles

Progress of Preparation for ITER Divertor Thermocouple in JADA
Sin-iti KITAZAWA, Tsuyoshi YAMAMOTO, Yasunori KAWANO and Kiyoshi ITAMI
Naka Fusion Institute, Japan Atomic Energy Agency, JAEA, Naka, Ibaraki 311-0193, Japan
(Received 10 December 2013 / Accepted 5 March 2014 / Published 7 May 2014)

Abstract

The Japan Domestic Agency (JADA) is scheduled to procure the Outer Divertor Thermocouple (ODTC) system for the divertor outer vertical targets in the ITER project. The ODTC system is a diagnostic system that will directly measure the surface temperature of the divertor, a plasma-facing component, and will be installed on the surface of the divertors which are in the scope of JADA procurement sharing. A thermocouple itself is a conventional component used for measuring temperature; however, the ODTC system must take highly reliable measurements under the ultrahigh vacuum and high magnetic and radiation fields of the ITER environment. Therefore various advanced research and development is necessary. The ODTC Instrumentation and Control (I&C) system, which is based on ITER standards, should also be developed since it is included within the scope of JADA procurement. In this manuscript, we show the current status of research & development on the ODTC system, the TC component, and the I&C system.

Keywords

ITER, JADA, ODTC, Divertor, thermocouple, surface temperature, I&C system, data transmission, data processing

DOI: 10.1585/pfr.9.3405049

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This paper may be cited as follows:

Sin-iti KITAZAWA, Tsuyoshi YAMAMOTO, Yasunori KAWANO and Kiyoshi ITAMI, Plasma Fusion Res. 9, 3405049 (2014).