'HEXE' - X-ray observatory in space

Details 'HEXE' - X-ray observatory in space 'HEXE' - X-ray observatory in space

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987asnau..24...41.&link_type=abstract

Astronautik (ISSN 0004-6221), vol. 24, Apr.-June 1987, p. 41, 42. In German.

Astronomy and Astrophysics

Astronomy

Astronomical Observatories, Spaceborne Astronomy, X Ray Astronomy, Cameras, Proportional Counters, Radiation Detectors, Space Stations, U.S.S.R. Space Program

Scientific paper

An overview is given of the design concept and scientific goals of the High-Energy X-ray Experiment (HEXE), developed in the FRG (by the Max Planck Institute for Extraterrestrial Physics and the Astronomical Institute of Tuebingen University) for operation on the Soviet space station Mir. HEXE was launched to LEO using a Kvant vehicle on March 31, 1987; after initial docking problems, it was joined to Mir by two cosmonauts in a 3-hour EVA on April 12. HEXE has dimensions 45 x 45 x 75 cm and weight 180 kg; it employs an 800-sq-cm Tl-doped NaI/CsI phoswich detector for 15-250-keV X-rays, complementing the other Mir instruments: the ESTEC high-pressure gas-scintillation proportional counter (3-100 keV), the Soviet high-energy detector (20-800 keV), and the Dutch-British X-ray camera (2-30 keV). The Mir observations are intended to explore the energy spectra and time evolution of compact galactic and extragalactic objects.

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