Solar Physics

, Volume 162, Issue 1–2, pp 291–312

EIT: Extreme-ultraviolet Imaging Telescope for the SOHO mission

  • J. -P. Delaboudinière
  • G. E. Artzner
  • J. Brunaud
  • A. H. Gabriel
  • J. F. Hochedez
  • F. Millier
  • X. Y. Song
  • B. Au
  • K. P. Dere
  • R. A. Howard
  • R. Kreplin
  • D. J. Michels
  • J. D. Moses
  • J. M. Defise
  • C. Jamar
  • P. Rochus
  • J. P. Chauvineau
  • J. P. Marioge
  • R. C. Catura
  • J. R. Lemen
  • L. Shing
  • R. A. Stern
  • J. B. Gurman
  • W. M. Neupert
  • A. Maucherat
  • F. Clette
  • P. Cugnon
  • E. L. Van Dessel
Article

Abstract

The Extreme-ultraviolet Imaging Telescope (EIT) will provide wide-field images of the corona and transition region on the solar disc and up to 1.5 R⊙ above the solar limb. Its normal incidence multilayer-coated optics will select spectral emission lines from Fe IX (171 Å), Fe XII (195 Å), Fe XV (284 Å), and He II (304 Å) to provide sensitive temperature diagnostics in the range from 6 × 104 K to 3 × 106 K. The telescope has a 45 x 45 arcmin field of view and 2.6 arcsec pixels which will provide approximately 5-arcsec spatial resolution. The EIT will probe the coronal plasma on a global scale, as well as the underlying cooler and turbulent atmosphere, providing the basis for comparative analyses with observations from both the ground and other SOHO instruments. This paper presents details of the EIT instrumentation, its performance and operating modes.

Key words

Solar X-rays Solar EUV Multilayer telescope 

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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • J. -P. Delaboudinière
    • 1
  • G. E. Artzner
    • 1
  • J. Brunaud
    • 1
  • A. H. Gabriel
    • 1
  • J. F. Hochedez
    • 1
  • F. Millier
    • 1
  • X. Y. Song
    • 1
  • B. Au
    • 2
  • K. P. Dere
    • 2
  • R. A. Howard
    • 2
  • R. Kreplin
    • 2
  • D. J. Michels
    • 2
  • J. D. Moses
    • 2
  • J. M. Defise
    • 3
  • C. Jamar
    • 3
  • P. Rochus
    • 3
  • J. P. Chauvineau
    • 4
  • J. P. Marioge
    • 4
  • R. C. Catura
    • 5
  • J. R. Lemen
    • 5
  • L. Shing
    • 5
  • R. A. Stern
    • 5
  • J. B. Gurman
    • 6
  • W. M. Neupert
    • 6
  • A. Maucherat
    • 7
  • F. Clette
    • 8
  • P. Cugnon
    • 8
  • E. L. Van Dessel
    • 8
  1. 1.Inst. d'Astrophysique SpatialeUniversité Paris XIOrsay CedexFrance
  2. 2.Naval Research LaboratoryWashington, DCUSA
  3. 3.Centre Spatial de LiègeLiègeBelgium
  4. 4.Institut d'Optique Théorique et AppliquéeOrsay
  5. 5.Lockheed Palo Alto Research LaboratoryPalo AltoUSA
  6. 6.NASA/Goddard Space Flight CenterGreenbeltUSA
  7. 7.Laboratoire d'Astronomie SpatialeMarseilleFrance
  8. 8.Observatoire Royal de BelgiqueBrusselsBelgium
  9. 9.SEL/NOAHBoulder

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