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Progress of the ITER equatorial vis/IR wide angle viewing system optical design
1Association Euratom CEA, CEA/DSM/IRFM, Cadarache, 13108 Saint-Paul-lez-Durance, France.
The Review of Scientific Instruments
|December 3, 2008
Summary
The ITER equatorial viewing system offers real-time plasma diagnostics for machine protection. Ongoing R&D addresses optical design and material challenges for this crucial tokamak instrument.
Area of Science:
- Fusion energy research
- Plasma physics instrumentation
Background:
- The International Thermonuclear Experimental Reactor (ITER) requires advanced diagnostics for plasma monitoring and machine protection.
- Existing diagnostic systems face limitations in coverage and resolution for critical plasma parameters.
Purpose of the Study:
- To present the design and ongoing research and development for the equatorial visible/infrared wide-angle viewing system for ITER.
- To detail the system's capabilities in real-time plasma monitoring and machine protection.
Main Methods:
- Utilizing a wide-angle optical design for extensive field of view coverage.
- Implementing high spatial and temporal resolution for precise measurements.
- Addressing material selection and optomechanical challenges within confined port spaces.
Main Results:
- The system is designed for real-time temperature measurements of plasma-facing components.
- It will provide spectral data, runaway electron information, and pellet tracking capabilities.
- Preliminary design phase is ongoing, focusing on critical R&D aspects.
Conclusions:
- The equatorial viewing system is essential for ITER's operational reliability and machine protection.
- Successful implementation requires overcoming significant optical and engineering challenges.
- Continued R&D is vital for achieving the diagnostic's performance goals.
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