Mechanical design of the two dimensional beam emission spectroscopy diagnostics on mast

István Gábor Kiss, Botond Mészáros, Dániel Dunai, Sándor Zoletnik, Tibor Krizsanóczi, Anthony R. Field, Rob Gaffka

Research output: Contribution to journalArticle

5 Citations (Scopus)


A two dimensional beam emission spectroscopy (BES) system optimized for density turbulence measurements has recently been installed on the MAST tokamak. This system observes the emission of a Deuterium heating beam using a rotatable mirror to view from the plasma centre to the outboard edge (0.7-1.5 m), although the optics is optimized for core region (1.2 m). The beam is imaged onto a 4×8 pixel Avalanche Photodiode (APD) array detector, enabling measurements with 1 MHz bandwidth at photon-flux level of few times 10 11 photons/s. This article will present the mechanical design of MAST BES equipment with special emphasis on its in-vessel components.

Original languageEnglish
Pages (from-to)1315-1318
Number of pages4
JournalFusion Engineering and Design
Issue number6-8
Publication statusPublished - Oct 1 2011



  • BES
  • Diagnostics
  • MAST
  • Turbulence measurements

ASJC Scopus subject areas

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

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