Three-dimensional reconstruction of dust particle trajectories in the NSTX

Rev Sci Instrum. 2008 Oct;79(10):10F334. doi: 10.1063/1.2965001.


Highly mobile incandescent dust particles are routinely observed on NSTX using two fast cameras operating in the visible region. An analysis method to reconstruct dust particle trajectories in space using two fast cameras is presented in this paper. Position accuracies of a few millimeters depending on the particle's location have been achieved and particle velocities between 10 and 200 ms have been observed.