Methodology for Constructing 2D Distributions of Plasma Parameters Using Heavy Ion Beam Probe Data on the T-10 Tokamak

• Published in: Physics of atomic nuclei 2023-12, Vol.86 (9), p.2115-2123
• Main Authors: Ammosov, Y. M., Khabanov, F. O., Drabinskiy, M. A., Melnikov, A. V., Eliseev, L. G., Kharchev, N. K., Lysenko, S. E., Tsyvkunova, E. A.
• Format: Article
• Language: English
• Subjects: Arrays; Detectors; Electric potential; Heavy ions; Interaction of Plasma; Ion beams; Methods; Parameters; Particle and Nuclear Physics; Particle Beams; Penetration depth; Physics; Physics and Astronomy; Plasma; Plasma jets; Position measurement; Radiation with Matter; Sensors; Tokamak devices; Tokamaks; Toroidal plasmas
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S106377882309003X

Heavy ion beam probe (HIBP) is a unique tool for studying the electric potential and various turbulence characteristics both in the core and at the edge of toroidal plasmas. The position of the HIBP measurement point in the plasma is determined by the probe beam energy and its entrance angle into the plasma. The probe beam energy is constant during the plasma discharge and determines the maximum penetration depth of the beam into the plasma. The beam entrance angle into the plasma can vary during the discharge, and the set of positions of HIBP measurement points for different beam entrance angles creates a so-called detector line. The set of detector lines for different probe beam energies represents a 2D region (detector array) in the vertical cross section of the plasma. The article presents a method for constructing 2D distributions of plasma parameters over the detector array on the T-10 tokamak by the example of the plasma electric potential.