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Proceedings Paper

Coronal Diagnostic Spectrometer: an extreme-ultraviolet spectrometer for the Solar and Heliospheric Observatory
Author(s): Barry J. Kent; Richard A. Harrison; Eric C. Sawyer; R. W. Hayes; Anthony G. Richards; J. Leonard Culhane; K. Norman; A. A. Breeveld; P. D. Thomas; Arthur I. Poland; Roger J. Thomas; William T. Thompson; Bernd Aschenbach; Heinrich W. Braeuninger; O. Kjeldseth-Moe; Mikhael Kuehne; Joerg Hollandt; W. Paustian; B. J.I. Bromage
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Paper Abstract

The coronal diagnostic spectrometer is designed to probe the solar atmosphere through the detection of spectral emission lines in the extreme ultraviolet wavelength range 15.0 - 80.0 nm. By observing the intensities of selected lines and line profiles, it is possible to derive temperature, density, flow, and abundance information for the plasmas in the solar atmosphere. Spatial resolution down to a few arcseconds and temporal resolution of seconds, allows such studies to be made within the fine-scale structure of the solar corona. Furthermore, coverage of a large wavelength band provides the capability for simultaneously observing the properties of plasma across the wide temperature ranges of the solar atmosphere. The CDS design makes use of a Wolter-Schwarzschild II telescope which simultaneously illuminates two spectrometer systems, one operating in normal incidence the other in grazing incidence. In this paper we describe the salient features of the design of the CDS instrument and discuss the performance characteristics of CDS as established through pre-delivery test and calibration activities.

Paper Details

Date Published: 16 October 1995
PDF: 17 pages
Proc. SPIE 2517, X-Ray and EUV/FUV Spectroscopy and Polarimetry, (16 October 1995); doi: 10.1117/12.224918
Show Author Affiliations
Barry J. Kent, Rutherford Appleton Lab. (United Kingdom)
Richard A. Harrison, Rutherford Appleton Lab. (United Kingdom)
Eric C. Sawyer, Rutherford Appleton Lab. (United Kingdom)
R. W. Hayes, Rutherford Appleton Lab. (United Kingdom)
Anthony G. Richards, Rutherford Appleton Lab. (United Kingdom)
J. Leonard Culhane, Univ. College London (United Kingdom)
K. Norman, Univ. College London (United Kingdom)
A. A. Breeveld, Univ. College London (United Kingdom)
P. D. Thomas, Univ. College London (United Kingdom)
Arthur I. Poland, NASA Goddard Space Flight Ctr. (United States)
Roger J. Thomas, NASA Goddard Space Flight Ctr. (United States)
William T. Thompson, NASA Goddard Space Flight Ctr. (United States)
Bernd Aschenbach, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
Heinrich W. Braeuninger, Max-Planck-Institut fuer Extraterrestrische Physik (Germany)
O. Kjeldseth-Moe, Univ. of Oslo (Norway)
Mikhael Kuehne, Physikalisch-Technische Bundesanstalt (Germany)
Joerg Hollandt, Physikalisch-Technische Bundesanstalt (Germany)
W. Paustian, Physikalisch-Technische Bundesanstalt (Germany)
B. J.I. Bromage, Univ. of Central Lancashire (United Kingdom)

Published in SPIE Proceedings Vol. 2517:
X-Ray and EUV/FUV Spectroscopy and Polarimetry
Silvano Fineschi, Editor(s)

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