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ICRF wave propagation and absorption modelling via machine learning

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A surrogate model of the wave absorption in the ion cyclotron range of frequencies is presented. The model is trained to capture the physics of 1D electron and ion power absorption profiles for both the high harmonic fast wave scheme in NSTX, and the minority heating scheme in WEST. The surrogate models, based on both the random forest regressor and the multilayer perceptron algorithms, reduce inference time of 1D power absorption profiles from 1-5 minutes required by TORIC to ∼50 µs with high accuracy (i.e. R2 = 0.71−0.96).

Original languageEnglish (US)
Title of host publication49th EPS Conference on Plasma Physics, EPS 2023
PublisherEuropean Physical Society (EPS)
ISBN (Electronic)9781713898672
StatePublished - 2023
Event49th EPS Conference on Plasma Physics, EPS 2023 - Bordeaux, France
Duration: Jul 3 2023Jul 7 2023

Publication series

Name49th EPS Conference on Plasma Physics, EPS 2023

Conference

Conference49th EPS Conference on Plasma Physics, EPS 2023
Country/TerritoryFrance
CityBordeaux
Period7/3/237/7/23

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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