3D particle tracking velocimetry using dynamic discrete tomography for plasma physics applications

Dmitry Moseev, Andreas Alpers, Peter Gritzmann, Mirko Salewski

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Abstract

3D particle tracking velocimetry (PTV) is a diagnostic technique which is widely used for studying flows, combustion, and plasmas. Current tomographic particle tracking methods are based on the multiplicative algebraic reconstruction technique and used for reconstructing the distribution of multi-pixel sized particles as greylevel images. Reconstructions obtained by these methods do not necessarily match the experimental data. We propose a new algorithm which can be used for tracking dust particles in tokamaks and stellarators, as well as in low-temperature and complex plasmas. The dynamic discrete tomography algorithm is efficient for data from two projection directions and exact. The non-uniqueness can be detected and tracked individually. The algorithm performance is proportional to N3 on average where N is the number of particles in the reconstruction. There is a room for further improvement of the computational cost scaling. Information from previously reconstructed frames is incorporated in the reconstruction procedure that is formulated as a discrete optimization problem, which has not been applied in PTV previously.
Original languageEnglish
JournalAmerican Physical Society. Bulletin
Volume58
Issue number16
ISSN0003-0503
Publication statusPublished - 2013
Event55th Annual Meeting of the APS Division of Plasma Physics - Denver, United States
Duration: 11 Nov 201315 Nov 2013
Conference number: 55

Conference

Conference55th Annual Meeting of the APS Division of Plasma Physics
Number55
CountryUnited States
CityDenver
Period11/11/201315/11/2013

Fingerprint Dive into the research topics of '3D particle tracking velocimetry using dynamic discrete tomography for plasma physics applications'. Together they form a unique fingerprint.

Cite this