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9–12 Sept 2025
Fudan University, Shanghai, China
Europe/Vienna timezone
The programme will be announced soon

Bayesian Techniques for Design Optimization of Magnetic Diagnostics and Validation on the WEST tokamak

11 Sept 2025, 09:30
30m
Auditorium Hall HGX 102 (Guanghua Twin Tower) (Fudan University, Shanghai, China)

Auditorium Hall HGX 102 (Guanghua Twin Tower)

Fudan University, Shanghai, China

220 Handan Road, Yangpu District, Shanghai, China 邯郸路 220 号 复旦大学
Oral (Invited) Next Fusion Device Concepts: Data Challenges and Design Optimization Next Fusion Device Concepts: Data Challenges and Design Optimization

Speaker

Yangyang Zhang

Description

Next-generation fusion devices such as DEMO present significant challenges in diagnostic system design due to spatial and cost constraints. Previous work has demonstrated the successful application of Bayesian experimental design to DEMO, optimizing both the placement and orientation of magnetic coils to reduce sensor quantity while maintaining diagnostic accuracy.
In this study, we extend the application of Bayesian methods to the magnetic diagnostic system of WEST, focusing on optimizing the quantity of pick-up coils using mutual information as the criterion for sensor selection. The approach systematically identifies sensor configurations that maximize information gain while minimizing measurement uncertainty in key plasma parameters, including plasma current centroid, total current, and X-point position.
Preliminary results indicate that a reduction in the number of pick-up coils is feasible without compromising diagnostic accuracy, underscoring the effectiveness of Bayesian design in guiding optimal sensor configurations. This work provides a rigorous framework for sensor optimization under engineering and economic constraints, offering insights for diagnostic design in future fusion devices.

Speaker's email address yangyang.zhang@ugent.be
Speaker's Affiliation Ghent University
Member State or International Organizations Belgium

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