Overview on R&D and design activities for the ITER core charge exchange spectroscopy diagnostic system

W. Biel, T. Baross, P. Bourauel, D. Dunai, M. Durkut, G. Erdei, N. Hawkes, M. V. Hellermann, A. Hogenbirk, R. Jaspers, G. Kiss, F. Klinkhamer, J. F. Koning, V. Kotov, Y. Krasikov, A. Krimmer, O. Lischtschenko, A. Litnovsky, O. Marchuk, O. NeubauerG. Offermanns, A. Panin, K. Patel, G. Pokol, M. Schrader, B. Snijders, V. Szabo, N. Van Der Valk, R. Voinchet, J. Wolters, S. Zoletnik

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The ITER core charge exchange recombination spectroscopy (core CXRS) diagnostic system is designed to provide experimental access to various measurement quantities in the ITER core plasma such as ion densities, temperatures and velocities. The implementation of the approved CXRS diagnostic principle on ITER faces significant challenges: First, a comparatively low CXRS signal intensity is expected, together with a high noise level due to bremsstrahlung, while the requested measurement accuracy and stability for the core CXRS system go far beyond the level commonly achieved in present-day fusion experiments. Second, the lifetime of the first mirror surface is limited due to either erosion by fast particle bombardment or deposition of impurities. Finally, the hostile technical environment on ITER imposes challenging boundary conditions for the diagnostic integration and operation, including high neutron loads, electro-magnetic loads, seismic events and a limited access for maintenance. A brief overview on the R&D and design activities for the core CXRS system is presented here, while the details are described in parallel papers.

Original languageEnglish
Pages (from-to)548-551
Number of pages4
JournalFusion Engineering and Design
Volume86
Issue number6-8
DOIs
Publication statusPublished - Oct 1 2011

Keywords

  • Active spectroscopy
  • Diagnostic
  • ITER
  • Mechanical engineering
  • Optical design
  • Upper port plug

ASJC Scopus subject areas

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

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    Biel, W., Baross, T., Bourauel, P., Dunai, D., Durkut, M., Erdei, G., Hawkes, N., Hellermann, M. V., Hogenbirk, A., Jaspers, R., Kiss, G., Klinkhamer, F., Koning, J. F., Kotov, V., Krasikov, Y., Krimmer, A., Lischtschenko, O., Litnovsky, A., Marchuk, O., ... Zoletnik, S. (2011). Overview on R&D and design activities for the ITER core charge exchange spectroscopy diagnostic system. Fusion Engineering and Design, 86(6-8), 548-551. https://doi.org/10.1016/j.fusengdes.2011.02.086