AM laser system (IVVS) for the ITER in vessel viewing and ranging

A. Coletti, L. Bartolini, M. Ferri De Collibus, G. Fornetti, A. Lo Bue, S. Lupini, C. Neri, F. Pollastrone, L. Semeraro, C. Talarico

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9 Citations (Scopus)


In vessel inspection (viewing and ranging) systems, able to withstand the International Thermonuclear Experimental Reactor (ITER) very severe operating conditions, are fundamental to check plasma facing components in order to properly program ordinary and extraordinary maintenance activities. In this field different schemes have been proposed during the EDA ITER phase each of them showing problems in ranging and/or in radiation hardening and/or in additional illumination source. For this reason ENEA proposed the Laser in Vessel Viewing and Ranging System (IVVS) based on an amplitude modulated (AM) laser beam. At the moment IVVS seems the only system under testing able to perform, at the same time, viewing&ranging under the ITER operating conditions. The IVVS testing is scheduled to be completed within 2002 at ENEA's Frascati Labs. The present paper includes the IVVS design principle and the main results of the optics scheme that is the essential and innovative part of the probe. © 2003 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)169 - 175
Number of pages7
JournalFusion Engineering and Design
Issue number1-4 SPEC
Publication statusPublished - Sep 2003
Externally publishedYes


All Science Journal Classification (ASJC) codes

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

Cite this

Coletti, A., Bartolini, L., De Collibus, M. F., Fornetti, G., Lo Bue, A., Lupini, S., ... Talarico, C. (2003). AM laser system (IVVS) for the ITER in vessel viewing and ranging. Fusion Engineering and Design, 69(1-4 SPEC), 169 - 175.