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Engineering and manufacturing of ITER first mirror mock-ups
M Joanny1, J M Travère, S Salasca
1CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France. maryline.joanny@cea.fr
The Review of Scientific Instruments
|November 2, 2010
Summary
ITER is developing robust in-vessel metallic mirrors for optical diagnostics. This research assesses manufacturing feasibility, cooling, polishing, and costs for rhodium, molybdenum, and silver mirror prototypes.
Area of Science:
- Fusion energy research
- Materials science and engineering
- Optical diagnostics
Background:
- In-vessel metallic mirrors are crucial for ITER's optical diagnostics to monitor plasma-facing components.
- The harsh plasma environment necessitates careful design and manufacturing considerations for these mirrors.
- Reliable mirror solutions are essential for the successful operation of ITER.
Purpose of the Study:
- To assess the manufacturing feasibility of different mirror coatings for ITER diagnostics.
- To evaluate manufacturing capabilities, cooling, and polishing performance for mirror prototypes.
- To determine costs and delivery timelines for 200 and 500 mm diameter mirror prototypes.
Main Methods:
- Design and manufacturing of three types of ITER candidate mirror mock-ups.
- Testing of rhodium films on stainless steel substrate.
- Testing of molybdenum on TZM substrate.
- Testing of silver films on stainless steel substrate.
Main Results:
- Manufacturing feasibility of mirror coatings is under evaluation.
- Mirror cooling and polishing capabilities are being assessed.
- Cost and delivery time estimations for prototypes are in progress.
Conclusions:
- The project is progressing with the design and manufacturing of candidate mirror mock-ups.
- Ongoing investigations aim to optimize mirror design and manufacturing for the ITER environment.
- The findings will inform the selection of optimal and reliable mirror solutions for ITER's optical diagnostics.
