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

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...

Full description

Saved in:

Bibliographic Details
Published in:	Fusion engineering and design Vol. 86; no. 6; pp. 548 - 551
Main Authors:	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., Neubauer, O., Offermanns, G., Panin, A., Patel, K., Pokol, G., Schrader, M., Snijders, B., Szabo, V., van der Valk, N., Voinchet, R., Wolters, J., Zoletnik, S.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Amsterdam Elsevier B.V 01-10-2011 Elsevier
Subjects:	Active spectroscopy Applied sciences Controled nuclear fusion plants Diagnostic Energy Energy. Thermal use of fuels Exact sciences and technology Installations for energy generation and conversion: thermal and electrical energy ITER Mechanical engineering Optical design Upper port plug Diagnostic ITER Active spectroscopy Optical design Upper port plug Mechanical engineering Tokamak Impurity Bremsstrahlung Maintenance Boundary condition Plasma density Research and development Nuclear fusion reactor Lifetime Deposition Ion plasma Seismic load Reactor core Erosion
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	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.
ISSN:	0920-3796 1873-7196
DOI:	10.1016/j.fusengdes.2011.02.086