SI-5
東芝のＩＴＥＲプロジェクトへの取り組み
Contributions of TOSHIBA Corp. to the ITER Project仙田 郁夫
SENDA Ikuo（株）東芝 電力システム社 原子力事業部 原子力技術部
Plant Project Engineering Dept., Nuclear Energy System & Services Div.,
Toshiba Corp. Power System Company
1. Toshiba's presence in the ITER project
Toshiba Corp. had participated in the ITER
project from the very beginning of the project.
During the Conceptual Design Activity (CDA) andthe Engineering Design Activity (EDA), more than
50 engineers were dispatched from Toshiba to join
the design activities of CDA and EDA.
In EDA, successes of large 7 R&Ds wereimportant achievements of the ITER project.
Toshiba participated in 5 among 7 large R&Ds andplayed major roles in 3 R&Ds, which were trial
fabrication of the center solenoid coil,demonstration of the blanket remote handlingsystem and trial of the vacuum vessel sector model.
The R&Ds with Toshiba's major contributions areshown in Figure 1 with blue edges.

ITER EDA 7 Large R&Ds

Blanket Module

Center Solenoid CoilBlanket Remote Handling

Divertor Remote HandｌingIn the post-EDA phase, Toshiba maintained its
presence in the project both in design and R&D
activities. In the development of superconductors
for ITER magnets, Toshiba contributed to verify theperformance of the superconductors by successful
installation of the insert coils for magnet test
facilities of JAEA. Toshiba had also fabricated theconductor test sample for SULTAN conductor test
facility. Figure 2-A shows overview of PF insert
coil installation and Figure 2-B shows the SULTAN
sample of the conductor for TF coil.
Another activity in the post-EDA was todemonstrate manufacturing feasibility of TF coilthrough trials fabrications. Figure 3 shows some ofthose R&Ds. One of them is the vacuum
impregnation (VPI) test for TF coil, in which thebehavior of radiation-resistant resin in VPI process
was examined and design concept was verified.
Anther example is the small-scale trial of coverplate welding by hybrid-laser beam welding, which
was to measure deformation and to check themanufacturing procedure.
As described in this section, Toshiba has been
continuously contributing to the ITER project inboth design activities and manufacturing
demonstrations from the beginning of CDA up topresent manufacturing phase, which is described innext section.
Short sample of TFC VPIDiverotor Cassette

TF Model CoilCover plate welding test

Vacuum Vessel sector

Figure 1 Toshiba's contributions in 7 Large R&Ds.

A:PF insert coil

B:TF SULTAN
sampleFigure 3 R&Ds in Post-EDA

2. Toshiba's recent activities in the ITER project
Figure 2 PF insert coil and TFC SULTAN sample.

In the recent manufacturing phase of ITER project,
the area of Toshiba’s activities in ITER is wide,such as TF coil (TFC) manufacturing, the blanket
remote handling system and the neutronmeasurement.
In 2009, Toshiba won two-year contract offull-scale R&Ds, which are parts of TFC Ph2
activities. Many small-scale R&Ds were performed
in both winding of coils and manufacturing of coilcase. As large-scale R&D, Toshiba carried out,
1) Sub-scale double pancake (DP) winding,2) Full-scale regular radial plate (RP) andcorresponding cover plates,
3) Full scale coil case (CC) manufacturing of A3
and B3 segments.
In sub-scale DP trial, D-shape DP with 3 turns oneach side of about 1/3 size of real DP wasfabricated. Figure 4 shows the winding of sub-scale
DP. This DP was fabricated by using real TF
superconductor and it was heat-treated to examine
manufacturing procedure and verify deformation ofthe conductor due to the heat treatment. Then, thesub-scale DP was vacuum-impregnated and cured
by using radiation-resistant resin.
Figure 5 shows the trials of RP and CC segments.
These R&Ds were finished in 2010. Throughachievements of the R&Ds, the manufacturing
design was studied as preparation to enter themanufacturing phase of TFC.
In the blanket remote handling system, Toshibacollaborated with JAEA to close PDR (PreliminaryDesign Review) and is participating in activities tofinalize the design. Toshiba is also contributing todesign and R&D activities of neutron measurement
system.

3. Prospect of future contributions
The ITER project has entered in construction
phase. There are already several contracts for
manufacturing equipment for ITER.
By the end of July 2013, Toshiba has been
awarded two contracts of JAEA to manufacture twocomplete sets of TFC and one TFC winding pack.
At present, Toshiba is working on remaining R&Ds,
which should be finished before serial production.
With results of these R&Ds, the manufacturing
design will be finalized.
In preparation for TFC production, Toshiba ispreparing manufacturing organization. Toshibaplans to use factory space in Keihin ProductOperations and Toshiba-IHI Power Systems (TIPS)
as shown in Figure 6. In early 2014, factory spacefor winding TF conductors will be prepared as afirst step.
Another important activity of Toshiba toward
construction of ITER is the detailed design of theblanket remote handling system. This system itself
has design issues, but it also has challenging issues
due to its wide interface with other systems, such as
the vacuum vessel, the blanket modules, the hot cell,the higher-level plant control system (CODAC) andso on. Toshiba is working on completion this task
and preparation for fabricating the remote handing
system in collaboration with JAEA and also withITER organization.
With activities mentioned above and those which
will be done in coming years, Toshiba continues tocontribute to the ITER project.

ＩＨＩ・東芝パワーシステム社

東芝・京浜事業所

横浜港

Figure 4 Winding of sub-scale DP
Radial Plate

Coil case B3 segment

Figure 5 Full-scale R&Ds in TFC Phase 2

Figure 6 Factor space in Keihin and TIPS will
be used for fabrication of ITER TFC.