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Spectroscopic study of beryllium plasma produced by thermionic vacuum arc

C. P. LUNGU1,* , I. MUSTATA1, V. ZAROSCHI1, A. M. LUNGU1, P. CHIRU1, A. ANGHEL1, G. BURCEA2, V. BAILESCU2, G. DINUTA2, F. DIN2

Affiliation

  1. National Institute for Lasers, Plasma and Radiation Physics, Bucharest, Romania
  2. Nuclear Fuel Factory, Pitesti, Romania

Abstract

Beryllium is a candidate plasma-facing material for the main chamber wall in ITER. It will also be at JET during the ITER-Like Wall (ILW) Project aiming at tokamak operation with a full metal wall. Special marker tiles will be used in order to assess the beryllium erosion. These will be solid beryllium tiles coated first with a thin high-Z metal film (acting as an interlayer) and then with a layer of deposited beryllium. The aim of this contribution is to report on the development of a production method for thin beryllium coatings relevant for this application..

Keywords

Thermionic vacuum arc, Optical emission spectroscopy, Electron temperature, Beryllium plasma.

Submitted at: Nov. 2, 2006
Accepted at: April 15, 2007

Citation

C. P. LUNGU, I. MUSTATA, V. ZAROSCHI, A. M. LUNGU, P. CHIRU, A. ANGHEL, G. BURCEA, V. BAILESCU, G. DINUTA, F. DIN, Spectroscopic study of beryllium plasma produced by thermionic vacuum arc, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 4, pp. 884-886 (2007)