High speed laser tomography system

D. Samsonov, A. Elsaesser, A. Edwards, H. M. Thomas, G. E. Morfill
2008 Review of Scientific Instruments  
A high speed laser tomography system was developed capable of acquiring three-dimensional ͑3D͒ images of optically thin clouds of moving micron-sized particles. It operates by parallel-shifting an illuminating laser sheet with a pair of galvanometer-driven mirrors and synchronously recording two-dimensional ͑2D͒ images of thin slices of the imaged volume. The maximum scanning speed achieved was 120 000 slices/ s, sequences of 24 volume scans ͑up to 256 slices each͒ have been obtained. The 2D
more » ... ces were stacked to form 3D images of the volume, then the positions of the particles were identified and followed in the consecutive scans. The system was used to image a complex plasma with particles moving at speeds up to cm/s.
doi:10.1063/1.2885683 pmid:18377040 fatcat:wsdjhouskjezliya5solgzqdeu