Deutsch: Scheme of Laser Schlieren Deflectometry (LSD) and a representative result of the method obtained for a self-organized non-thermal atmospheric pressure plasma jet (ntAPPJ). The 2D graph shows a cross-section of three hot filaments in perpendicular direction to the gas flow. The model used for the reconstructions of the temperature field considers the Fourier low of heat transfer and rotation of plasma patterns at 30 Hz obtained also by LSD.