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New diagnostic techniques and technologies at JET (invited)

Murari, A. (author)
Alper, B. (author)
Bertalot, L. (author)
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Brzozowski, Jerzy H. (author)
KTH,Fusionsplasmafysik
Coad, P. (author)
Conroy, S. (author)
De la Luna, E. (author)
Ericsson, G. (author)
Esser, H. G. (author)
Hacquin, S. (author)
Kaellne, J. (author)
Kiptily, V. (author)
Lawson, K. (author)
O'Mullane, M. (author)
Philipps, V. (author)
Sharapov, S. (author)
Zastrow, K. D. (author)
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 (creator_code:org_t)
AIP Publishing, 2006
2006
English.
In: Review of Scientific Instruments. - : AIP Publishing. - 0034-6748 .- 1089-7623. ; 77:10
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • The European Fusion Development Agreement's mission for JET is the development of ITER scenarios exploiting the specific properties of the device. This task requires significant improvements in the measuring techniques. The most innovative diagnostic upgrades are in the fields of edge measurements, detection of fast magnetohydrodynamics modes and burning plasma diagnostics. The importance of plasma-wall interactions, and, in particular, the issue of tritium inventory promoted the development of the quartz microbalance, a detector with improved time resolution to measure material redeposition in the remote areas of the inner divertor. Measurement of Alfven cascades with unprecedented spectral resolution, reaching a toroidal n number of up to 16, was obtained using an O-mode microwave reflectometer as an interferometer. For the diagnosis of the fusion products, a new approach is being developed to measure the He ash based on double charge exchange between thermalized particles and neutrals from JET beams. There have been several upgrades of the neutron diagnostic systems, one of which, the new time of flight neutron spectrometer designed for high counting rates is described.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

Edge detection
Interferometers
Inventory control
Magnetohydrodynamics
Measurement theory
Product development

Publication and Content Type

ref (subject category)
art (subject category)

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