Overview video diagnostics for the W7-X stellarator

G. Kocsis, T. Baross, C. Biedermann, G. Bodnár, G. Cseh, T. Ilkei, R. König, M. Otte, T. Szabolics, T. Szepesi, S. Zoletnik

Research output: Contribution to journalArticle

24 Citations (Scopus)


Considering the requirements of the newly built Wendelstein 7-X stellarator a ten-channel overview video diagnostic system was developed and is presently under installation. The system covering the whole torus interior can be used not only to observe the plasma but also to detect irregular operational events which are dangerous for the stellarator itself and to send automatic warning for the machine safety. The ten tangential AEQ ports used by the diagnostic remain under atmospheric pressure, the vacuum/air interface is at the front window located at the plasma side of the AEQ port. The optical vacuum window is protected by a cooled pinhole. The Sensor Module (SM) of the intelligent camera (EDICAM) - developed especially for this purpose - is located directly behind the vacuum window. EDICAM is designed to simultaneously record several regions of interest of its CMOS sensor with different frame rate and to detect various predefined events in real time. The air cooled SM is fixed by a docking mechanism which can preserve the pointing of the view. EDICAM can withstand the magnetic field (∼3 T), the neutron and gamma fluxes expected in the AEQ port. In order to adopt the new features of the video diagnostics system both control and data acquisition and visualization and data processing softwares are developed.

Original languageEnglish
Pages (from-to)808-811
Number of pages4
JournalFusion Engineering and Design
Publication statusPublished - Oct 1 2015


  • Event Detection Intelligent Camera
  • Overview video diagnostics
  • Stellarator
  • W7-X

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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  • Cite this

    Kocsis, G., Baross, T., Biedermann, C., Bodnár, G., Cseh, G., Ilkei, T., König, R., Otte, M., Szabolics, T., Szepesi, T., & Zoletnik, S. (2015). Overview video diagnostics for the W7-X stellarator. Fusion Engineering and Design, 96-97, 808-811. https://doi.org/10.1016/j.fusengdes.2015.02.067