Feasibility study and CXRS synthetic diagnostic model for COMPASS upgrade based on Cherab and Raysect framework

0544101 - ÚFP 2022 RIV CH eng J - Journal Article
Tomeš, Matěj - Carr, M. - Meakins, A. - Imríšek, Martin - Jaulmes, Fabien - Balner, Vojtěch - Bogár, Klára - Bílková, Petra - Weinzettl, Vladimír - Hron, Martin - Pánek, Radomír
Feasibility study and CXRS synthetic diagnostic model for COMPASS upgrade based on Cherab and Raysect framework.
Fusion Engineering and Design. Roč. 170, September (2021), č. článku 112498. ISSN 0920-3796. E-ISSN 1873-7196
Institutional support: RVO:61389021
Keywords : Charge exchange recombination spectroscopy * Cherab * cxrs * Forward model * Raysect * Synthetic diagnostic
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.905, year: 2021
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S092037962100274X?via%3Dihub

In this article the forward model and feasibility study of the CXRS (Charge Exchange Recombination Spectroscopy) diagnostic for the COMPASS Upgrade tokamak [1] based on the Raysect and Cherab framework [2–4] is presented. The neutral beam model available in Cherab is expanded and based on individual acceleration grid beamlets. The spatial density distribution calculation takes into account 3D geometry of the port structure. Beam density profile calculated with the expanded model is used to estimate realistic radial resolution of measurement and to produce forward models of the spectra. Effects of background plasma and beam halo are not included. The spectra are used to reconstruct the plasma profiles and are compared with the simulation input to estimate measurement errors with respect to positions of collecting optics.
Permanent Link: http://hdl.handle.net/11104/0321159