The coherent CO2 laser scattering signals from TFR Tokamak plasmas have been analysed using a variant of the algorithm proposed by Grassberger and Procaccia (1983) to determine the correlation exponent of these measured plasma turbulence signals. By comparing the results obtained with a randomly generated test signal, the authors see that the plasma turbulence may be considered a dynamical system which possesses a low correlation exponent (the value of which depends on wavenumber of the measured turbulence), thus indicating the possible existence of a low dimensional attractor. They also show by using different signals acquired at different sampling rates that this low dimensional structure is only observed when the acquisition rate of the turbulence signal is sufficiently rapid.