Status of the development of a thin-foil, high-throughput x-ray telescope for the Soviet Spectrum x-gamma mission

Niels J. Westergaard; B. P. Byrnak; Finn Erland Christensen; P. Grundsoe; Allan Hornstrup; S. Henrichsen; U. Henriksen; Ellen Jespersen; Hans Ulrich Noergaard-Nielsen; Josef Polny; Herbert W. Schnopper; P. Orup

doi:10.1117/12.55631

1 June 1990 Status of the development of a thin-foil, high-throughput x-ray telescope for the Soviet Spectrum x-gamma mission

Niels J. Westergaard, B. P. Byrnak, Finn Erland Christensen, P. Grundsoe, Allan Hornstrup, S. Henrichsen, U. Henriksen, Ellen Jespersen, Hans Ulrich Noergaard-Nielsen, Josef Polny, Herbert W. Schnopper, P. Orup

Author Affiliations +

Optical Engineering, Vol. 29, Issue 6, (June 1990). https://doi.org/10.1117/12.55631

Abstract

The first satellite in a planned series of Soviet astronomical x-ray and gamma-ray satellites will be equipped with two high-throughput telescopes to be manufactured by the Danish Space Research Institute. The optical system consists of two sets of nested cones, whose substrate is aluminum foil. The smooth surface is obtained by dip lacquering, and the reflective layer is gold. The design parameters have been optimized for high throughput at 7 keV. The mechanical design and the status of the surface preparation technologies are described. Various x-ray and optical test facilities for the measurement of surface roughness, "orange peel," and figure errors are described. An optical parallel beam has been established, and results from the first mounted mirrors are discussed. The design goal is an angular resolution of 2 arcmin (half energy width). The first results seem to indicate that this is feasible and the possibility of going down to 1.5 arcmin exists.

Citation Download Citation

Niels J. Westergaard, B. P. Byrnak, Finn Erland Christensen, P. Grundsoe, Allan Hornstrup, S. Henrichsen, U. Henriksen, Ellen Jespersen, Hans Ulrich Noergaard-Nielsen, Josef Polny, Herbert W. Schnopper, and P. Orup "Status of the development of a thin-foil, high-throughput x-ray telescope for the Soviet Spectrum x-gamma mission," Optical Engineering 29(6), (1 June 1990). https://doi.org/10.1117/12.55631

Published: 1 June 1990

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available