Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session YO03: Research in Support of ITER Burning Plasma Physics
9:30 AM–12:30 PM,
Friday, October 21, 2022
Room: Ballroom 100 C
Chair: Florian M. Laggner, North Carolina State University
Abstract: YO03.00011 : Optimizing the Microwave Performance of the ITER ECH Transmission Line System
11:30 AM–11:42 AM
Presenter:
Michael C Kaufman
(Oak Ridge National Lab)
Authors:
Michael C Kaufman
(Oak Ridge National Lab)
Gregory R Hanson
(US Iter Project Office)
To analyze the microwave performance consequences of ECH Transmission Line (TL) design decisions, we require a model of the system from the microwave point-of-view. It should account for the effects that each component has on microwave propagation, including manufacturing tolerances and installation alignment. It should also account for external loadings (thermal, gravitational, etc.) that can affect microwave propagation.
The tolerances and precision to which the TL components can be fabricated, installed, and aligned gives a practical limit to which the uncertainty of the microwave performance of the system can be calculated. Monte Carlo methods are a natural fit and employed to calculate the probability distribution that a given line can deliver its required power and mode purity. These techniques allow us to optimize the performance requirements relative to the fabrication costs.
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