Linear scattering theory of short-pulse reflectometry. (1st January 2023)

• Record Type: Journal Article
• Authors: Krutkin, O; Brunner, S; Coda, S; Aleynikov, P
• Is Part Of: Plasma physics and controlled fusion. Volume 65:Number 1(2023)
• Publication Date: 2023-01-01
• Subjects: reflectometry theory -- turbulence -- full-wave modelling; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/1361-6587/aca826
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: The linear scattering theory of short pulse reflectometry is presented. An expression for the scattering signal is obtained by applying the perturbation theory approach for solving the Helmholtz equation. Based on these analytical results, a method for measuring the radial wavenumber spectrum of the turbulence is suggested. Analytical results are validated against full-wave numerical modelling.