Polycapillary lenses for soft x-ray transmission in ITER: Model, comparison with experiments, and potential
D Mazon1, C Liegeard2, A Jardin1
1CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France.
The Review of Scientific Instruments
|December 3, 2016
Summary
Polycapillary lenses can transport soft X-ray (SXR) radiation measurements away from harsh tokamak environments. This enables crucial diagnostics for fusion energy research, even in complex geometries like ITER.
Area of Science:
- Plasma physics
- Fusion energy research
- Diagnostic instrumentation
Background:
- Soft X-ray (SXR) radiation measurement is vital for understanding plasma transport and magnetohydrodynamic activity in tokamaks.
- Traditional SXR detection methods require detectors near the plasma, posing challenges for harsh environments like the ITER deuterium-tritium phase.
Purpose of the Study:
- To investigate the feasibility of using polycapillary lenses for transporting SXR radiation signals in the International Thermonuclear Experimental Reactor (ITER).
- To enable remote SXR measurements away from the intense plasma environment within ITER's complex port-plug geometry.
Main Methods:
- Investigated the use of polycapillary lenses for SXR radiation transport.
- Considered the application within the complex port-plug geometry of ITER.
Main Results:
- Polycapillary lenses offer a viable solution for remote SXR measurement.
- This technique allows for the safe acquisition of SXR data from ITER's challenging fusion environment.
Conclusions:
- Polycapillary lenses are a promising technology for overcoming diagnostic limitations in future fusion reactors like ITER.
- This approach facilitates essential plasma diagnostics in environments too harsh for conventional methods.
