SODART X-ray Telescope

The SODART X-ray telescope consists of two conical foil mirror modules (MM). The MM is designed as a conical approximation to the Wolter I X-ray telescope geometry. The outer diameter of the MMs are 600 mm and the inner radius is 82 mm. The focal length is 8 m. The MMs each have 143 laquered and AU-coated 0.4 mm thick Al-foils, nested to completely fill the opening. The design goal is an angular resolution of 2 arcmin HPW.

The MM effective area and telescope parameters are described below.

Effective Area

[SODART MM Effective Area]

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MM Specifications - One Unit Field of view arcmin 60 Half power width arcmin < 2 Focal length m 8 Diameter: Inner Shell cm 16 Outer Shell cm 60 Reflecting surface Ang. gold 400 Effective area sq. cm @2 keV 1460 sq. cm @8 keV 1120 sq. cm @20 keV 94 Shell material mm aluminum 0.4 Shell separation (min) mm 0.52 Shell length cm 20 Number of shells 143 Mass per telescope kg 101 Total mirrored surface sq. m 62

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Last Updated Feb. 15, 1995