Atomic modeling and instrumentation for measurement and analysis of emission in preparation for the ITER-like wall in JET

M.G. O'Mullane, H.P. Summers, A.D. Whiteford, A.G. Meigs, K.D. Lawson, K.-D. Zastrow, R. Barnsley, I.H. Coffey, JET EFDA Contributors

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In the near future the interior materials of JET will be changed to a beryllium wall and tungsten divertor so as to resemble the ITER design. Initially there will be no carbon strike plates in the divertor but there is the possibility of adding these later for an exact match. Such a change requires upgraded spectroscopic diagnostics in order to measure the spatially dependent influx of these impurities and their concentrations in the confined plasma. With 74 ionization stages (many of them very complex) the high Z of tungsten also places new demands on the atomic physics required to model its behavior which in turn informs the design of potential diagnostic systems. Modeled emission patterns from the upgraded JET are used as part of the diagnostic specification. We describe a suite of spectroscopic diagnostics in the visible, extreme ultraviolet, vacuum ultraviolet, and x-ray spectral regions suitable for these tasks. (c) 2006 American Institute of Physics.
LanguageEnglish
Pages10F520
Number of pages5
JournalReview of Scientific Instruments
Volume77
Issue number10
DOIs
Publication statusPublished - 1 Oct 2006

Fingerprint

Tungsten
tungsten
Atomic physics
preparation
atomic physics
Beryllium
beryllium
Ionization
specifications
Physics
Vacuum
Impurities
Specifications
Plasmas
ionization
X rays
impurities
vacuum
physics
Carbon

Keywords

  • Tokamak devices
  • plasma toroidal confinement
  • plasma-wall interactions
  • plasma diagnostics
  • plasma impurities
  • ionisation
  • fusion reactor instrumentation

Cite this

O'Mullane, M.G. ; Summers, H.P. ; Whiteford, A.D. ; Meigs, A.G. ; Lawson, K.D. ; Zastrow, K.-D. ; Barnsley, R. ; Coffey, I.H. ; Contributors, JET EFDA. / Atomic modeling and instrumentation for measurement and analysis of emission in preparation for the ITER-like wall in JET. In: Review of Scientific Instruments. 2006 ; Vol. 77, No. 10. pp. 10F520.
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abstract = "In the near future the interior materials of JET will be changed to a beryllium wall and tungsten divertor so as to resemble the ITER design. Initially there will be no carbon strike plates in the divertor but there is the possibility of adding these later for an exact match. Such a change requires upgraded spectroscopic diagnostics in order to measure the spatially dependent influx of these impurities and their concentrations in the confined plasma. With 74 ionization stages (many of them very complex) the high Z of tungsten also places new demands on the atomic physics required to model its behavior which in turn informs the design of potential diagnostic systems. Modeled emission patterns from the upgraded JET are used as part of the diagnostic specification. We describe a suite of spectroscopic diagnostics in the visible, extreme ultraviolet, vacuum ultraviolet, and x-ray spectral regions suitable for these tasks. (c) 2006 American Institute of Physics.",
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author = "M.G. O'Mullane and H.P. Summers and A.D. Whiteford and A.G. Meigs and K.D. Lawson and K.-D. Zastrow and R. Barnsley and I.H. Coffey and Contributors, {JET EFDA}",
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O'Mullane, MG, Summers, HP, Whiteford, AD, Meigs, AG, Lawson, KD, Zastrow, K-D, Barnsley, R, Coffey, IH & Contributors, JETEFDA 2006, 'Atomic modeling and instrumentation for measurement and analysis of emission in preparation for the ITER-like wall in JET' Review of Scientific Instruments, vol. 77, no. 10, pp. 10F520. https://doi.org/10.1063/1.2236278

Atomic modeling and instrumentation for measurement and analysis of emission in preparation for the ITER-like wall in JET. / O'Mullane, M.G.; Summers, H.P.; Whiteford, A.D.; Meigs, A.G.; Lawson, K.D.; Zastrow, K.-D.; Barnsley, R.; Coffey, I.H.; Contributors, JET EFDA.

In: Review of Scientific Instruments, Vol. 77, No. 10, 01.10.2006, p. 10F520.

Research output: Contribution to journalArticle

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T1 - Atomic modeling and instrumentation for measurement and analysis of emission in preparation for the ITER-like wall in JET

AU - O'Mullane, M.G.

AU - Summers, H.P.

AU - Whiteford, A.D.

AU - Meigs, A.G.

AU - Lawson, K.D.

AU - Zastrow, K.-D.

AU - Barnsley, R.

AU - Coffey, I.H.

AU - Contributors, JET EFDA

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AB - In the near future the interior materials of JET will be changed to a beryllium wall and tungsten divertor so as to resemble the ITER design. Initially there will be no carbon strike plates in the divertor but there is the possibility of adding these later for an exact match. Such a change requires upgraded spectroscopic diagnostics in order to measure the spatially dependent influx of these impurities and their concentrations in the confined plasma. With 74 ionization stages (many of them very complex) the high Z of tungsten also places new demands on the atomic physics required to model its behavior which in turn informs the design of potential diagnostic systems. Modeled emission patterns from the upgraded JET are used as part of the diagnostic specification. We describe a suite of spectroscopic diagnostics in the visible, extreme ultraviolet, vacuum ultraviolet, and x-ray spectral regions suitable for these tasks. (c) 2006 American Institute of Physics.

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KW - plasma-wall interactions

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KW - plasma impurities

KW - ionisation

KW - fusion reactor instrumentation

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