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Optical Engineering

X-Ray Spectrometer Spectrograph Telescope System
Author(s): E. C. Bruner, Jr.; L. W. Acton; W. A. Brown; S. W. Salat; A. Franks; G. Schmidtke; W. Schweizer; R. J. Speer
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Paper Abstract

We now describe a new sounding rocket payload that has been developed for x-ray spectroscopic studies of the solar corona. The instrument incorporates a grazing incidence Rowland mounted grating spectrograph and an extreme off-axis parabolic sector telescope to isolate regions of the sun of order 1 X10 arc seconds in size. The focal surface of the spectrograph is shared by photographic and photoelectric detection systems, with the latter serving as a part of the rocket pointing system control loop. Fabrication and alignment of the optical system are based on high precision machining and mechanical metrology techniques. The spectrograph covers the 10 to 50 angstrom interval and has a resolution of 16 milliangstroms in the current version. Modifications planned for future flights will improve the resolution to around 5 milliangstroms, permitting line widths to be measured.

Paper Details

Date Published: 1 June 1980
PDF: 5 pages
Opt. Eng. 19(3) doi: 10.1117/12.7972532
Published in: Optical Engineering Volume 19, Issue 3
Show Author Affiliations
E. C. Bruner, Jr., Lockheed Palo Alto Research Laboratory (United States)
L. W. Acton, Lockheed Palo Alto Research Laboratory (United States)
W. A. Brown, Lockheed Palo Alto Research Laboratory (United States)
S. W. Salat, Lockheed Palo Alto Research Laboratory (United States)
A. Franks, National Physical Laboratory (England)
G. Schmidtke, Institut fur Physikalische Weltraumforschung (F. R. Germany)
W. Schweizer, Institut fur Physikalische Weltraumforschung (F. R. Germany)
R. J. Speer, Imperial College (England)


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