Towards a new image processing system at Wendelstein 7-X: From spatial calibration to characterization of thermal events

W7-X Team

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

Wendelstein 7-X (W7-X) is the most advanced fusion experiment in the stellarator line and is aimed at proving that the stellarator concept is suitable for a fusion reactor. One of the most important issues for fusion reactors is the monitoring of plasma facing components when exposed to very high heat loads, through the use of visible and infrared (IR) cameras. In this paper, a new image processing system for the analysis of the strike lines on the inboard limiters from the first W7-X experimental campaign is presented. This system builds a model of the IR cameras through the use of spatial calibration techniques, helping to characterize the strike lines by using the information given by real spatial coordinates of each pixel. The characterization of the strike lines is made in terms of position, size, and shape, after projecting the camera image in a 2D grid which tries to preserve the curvilinear surface distances between points. The description of the strike-line shape is made by means of the Fourier Descriptors.

langue originaleAnglais
Numéro d'article123503
journalReview of Scientific Instruments
Volume89
Numéro de publication12
Les DOIs
étatPublié - 1 déc. 2018

Empreinte digitale

Examiner les sujets de recherche de « Towards a new image processing system at Wendelstein 7-X: From spatial calibration to characterization of thermal events ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation