Scintillation measurement of density fluctuations in a tokamak plasma (abstract)

Recent theoretical results for line integrated measurements of phase and amplitude perturbations introduced on a laser beam probing a randomly fluctuating plasma are compared with phase scintillation data obtained on the LT‐4 tokamak. It is shown that an estimate of the transverse velocity profile along the line‐of‐sight can be obtained from single shot measurements of the phase perturbations.