New diagnostic techniques and technologies at JET (invited)

A. Murari, B. Alper, L. Bertalot, J. H. Brzozowski, P. Coad, S. Conroy, E. De la Luna, G. Ericsson, H. G. Esser, S. Hacquin, J. Kaellne, V. Kiptily, K. Lawson, M. O'Mullane, V. Philipps, S. Sharapov, K.-D. Zastrow, JET EFDA Contributors

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)10F529
Number of pages5
JournalReview of Scientific Instruments
Volume77
Issue number10
DOIs
Publication statusPublished - 1 Oct 2006

Fingerprint

Ashes
Fusion reactions
Neutron spectrometers
Plasma diagnostics
Reflectometers
Spectral resolution
microwave reflectometers
Beam plasma interactions
Tritium
Magnetohydrodynamics
fusion
Interferometers
Quartz
neutron spectrometers
Neutrons
plasma diagnostics
Microwaves
ashes
tritium
Detectors

Keywords

  • tritium handling
  • fusion reactor design
  • plasma Alfven waves
  • plasma-wall interactions
  • Tokamak devices
  • plasma boundary layers

Cite this

Murari, A., Alper, B., Bertalot, L., Brzozowski, J. H., Coad, P., Conroy, S., ... Contributors, JET. EFDA. (2006). New diagnostic techniques and technologies at JET (invited). Review of Scientific Instruments, 77(10), 10F529 . https://doi.org/10.1063/1.2336447
Murari, A. ; Alper, B. ; Bertalot, L. ; Brzozowski, J. H. ; Coad, P. ; Conroy, S. ; De la Luna, E. ; Ericsson, G. ; Esser, H. G. ; Hacquin, S. ; Kaellne, J. ; Kiptily, V. ; Lawson, K. ; O'Mullane, M. ; Philipps, V. ; Sharapov, S. ; Zastrow, K.-D. ; Contributors, JET EFDA. / New diagnostic techniques and technologies at JET (invited). In: Review of Scientific Instruments. 2006 ; Vol. 77, No. 10. pp. 10F529 .
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Murari, A, Alper, B, Bertalot, L, Brzozowski, JH, Coad, P, Conroy, S, De la Luna, E, Ericsson, G, Esser, HG, Hacquin, S, Kaellne, J, Kiptily, V, Lawson, K, O'Mullane, M, Philipps, V, Sharapov, S, Zastrow, K-D & Contributors, JETEFDA 2006, 'New diagnostic techniques and technologies at JET (invited)', Review of Scientific Instruments, vol. 77, no. 10, pp. 10F529 . https://doi.org/10.1063/1.2336447

New diagnostic techniques and technologies at JET (invited). / Murari, A.; Alper, B.; Bertalot, L.; Brzozowski, J. H.; Coad, P.; Conroy, S.; De la Luna, E.; Ericsson, G.; Esser, H. G.; Hacquin, S.; Kaellne, J.; Kiptily, V.; Lawson, K.; O'Mullane, M.; Philipps, V.; Sharapov, S.; Zastrow, K.-D.; Contributors, JET EFDA.

In: Review of Scientific Instruments, Vol. 77, No. 10, 01.10.2006, p. 10F529 .

Research output: Contribution to journalArticle

TY - JOUR

T1 - New diagnostic techniques and technologies at JET (invited)

AU - Murari, A.

AU - Alper, B.

AU - Bertalot, L.

AU - Brzozowski, J. H.

AU - Coad, P.

AU - Conroy, S.

AU - De la Luna, E.

AU - Ericsson, G.

AU - Esser, H. G.

AU - Hacquin, S.

AU - Kaellne, J.

AU - Kiptily, V.

AU - Lawson, K.

AU - O'Mullane, M.

AU - Philipps, V.

AU - Sharapov, S.

AU - Zastrow, K.-D.

AU - Contributors, JET EFDA

N1 - 16th Topical Conference on High-Temperature Plasma Diagnostics, Williamsburg, VA, MAY 07-11, 2006

PY - 2006/10/1

Y1 - 2006/10/1

N2 - 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.

AB - 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.

KW - tritium handling

KW - fusion reactor design

KW - plasma Alfven waves

KW - plasma-wall interactions

KW - Tokamak devices

KW - plasma boundary layers

U2 - 10.1063/1.2336447

DO - 10.1063/1.2336447

M3 - Article

VL - 77

SP - 10F529

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 10

ER -

Murari A, Alper B, Bertalot L, Brzozowski JH, Coad P, Conroy S et al. New diagnostic techniques and technologies at JET (invited). Review of Scientific Instruments. 2006 Oct 1;77(10):10F529 . https://doi.org/10.1063/1.2336447