High Resolution Thomson Scattering on Jet — An Assessment of the Feasibility

  • C. Gowers
  • C. J. Barth
  • R. Behn
  • M. Beurskens
  • B. Kurzan
  • P. Nielsen
  • R. Pasqualotto
  • M. Peres Alonso
  • F. Orsitto
  • J. Sanchez
  • M. Walsh
  • D. Wilson

Abstract

From discussions with the EFDA-JET Task Forces in early 2000, a range of requirements emerged for higher spatial resolution Te and ne Thomson scattering measurements in various specific regions of JET plasmas. These requirements are summarized in table 1 and seek significantly better spatial resolution than is achieved or is achievable with the two LIDAR Thomson scattering systems1,2 currently working on JET (4Hz core LIDAR ∼12cm; 1Hz Edge LIDAR 2–3cm, outer ∼10cm only). Two High Resolution Thomson Scattering (HRTS) proposals were received from the Associations, one from C J Barth, (FOM)3 and one from P Nielsen and R Pasqualotto, (RFX)4. These, in their final form, used almost identical “90 degree” scattering geometry (see figure 1).

Keywords

Peris Lidar Ruby 

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References

  1. 1.
    C Gowers et al, Rev. Sci. Instrum.66471(1995)ADSCrossRefGoogle Scholar
  2. 2.
    M. Beurskens et al, Proc 27th EPS conf. on Controlled Fusion and Plasma Physics, Budapest, 2000, p273.Google Scholar
  3. 3.
    C J Barth, H J van der Meiden, T Oyevaar, N J Lopes Cardozo, Rev. Sci. Instrum.72 (2001), 1138ADSCrossRefGoogle Scholar
  4. 4.
    P Nielsen, R Pasquelotto (this conference)Google Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • C. Gowers
    • 1
  • C. J. Barth
    • 2
  • R. Behn
    • 3
  • M. Beurskens
    • 2
  • B. Kurzan
    • 4
  • P. Nielsen
    • 5
  • R. Pasqualotto
    • 5
  • M. Peres Alonso
    • 6
  • F. Orsitto
    • 7
  • J. Sanchez
    • 8
  • M. Walsh
    • 9
  • D. Wilson
    • 1
  1. 1.Euratom-UKAEA AssociationCulham Science CentreAbingdonUK
  2. 2.EURATOM-FOM AssociationNieuwegein
  3. 3.EURATOM-Suisse AssociationCRPP Lausanne
  4. 4.D EURATOM-IPP AssociationGarching
  5. 5.I EURATOM—ENEA AssociationRFX, Padova
  6. 6.P EURATOM-IST AssociationLisbon
  7. 7.EURATOM-ENEA Frascati, I and EFDA-CSU, Culham Science CentreUK
  8. 8.E EURATOM-CIEMATMadrid
  9. 9.EURATOM-DCU AssociationDublin

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