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Four-dimensional (4D) tracking of high-temperature microparticles

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4955280· OSTI ID:1342862
 [1];  [1];  [1];  [2];  [2];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
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High-speed tracking of hot and molten microparticles in motion provides rich information about burning plasmas in magnetic fusion. An exploding-wire apparatus is used to produce moving high-temperature metallic microparticles and to develop four-dimensional (4D) or time-resolved 3D particle tracking techniques. The pinhole camera model and algorithms developed for computer vision are used for scene calibration and 4D reconstructions. 3D positions and velocities are then derived for different microparticles. As a result, velocity resolution approaches 0.1 m/s by using the local constant velocity approximation.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1342862
Alternate ID(s):
OSTI ID: 22596634
Report Number(s):
LA-UR--16-23769
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 87; ISSN 0034-6748; ISSN RSINAK
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (6)

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The fundamental matrix: Theory, algorithms, and stability analysis journal January 1996
A robust technique for matching two uncalibrated images through the recovery of the unknown epipolar geometry journal October 1995
Computer Vision: Models, Learning, and Inference book January 2012
Existing and new applications of micropellet injection (MPI) in magnetic fusion journal April 2016
Computer Vision text January 2018

Cited By (3)

Measurement of incandescent microparticle acceleration using stereoscopic imaging journal October 2018
Unsupervised learning about 4D features of microparticle motion journal October 2018
Reconstruction and analysis of exploding wire particle trajectories via automatic calibration of stereo images journal October 2018

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
magnetic fusion energy