The Diffuse X-ray Spectrometer shuttle package
![photo of DXS in the shuttle bay](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/dxs/sts-54_cargo_small2.gif)
The Diffuse X-Ray Spectrometer (DXS) experiment was built by the University of Wisconsin-Madison and flown as an attached payload in the January 1993 flight of Space Shuttle Endeavor (STS-54). The DXS's main scientific goal was to obtain spectra of the diffuse soft X-ray background.
Mission Characteristics
![*](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/heasarc/icons/orangeball.gif)
![*](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/heasarc/icons/orangeball.gif)
![*](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/heasarc/icons/orangeball.gif)
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2 large area Bragg crystal spectrometers (43-84 Å)
with 2.7 Å energy resolution
and 15 ° (FWHM) angular resolution
![*](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/heasarc/icons/orangeball.gif)
- DXS obtained the first-ever high resolution spectra of the diffuse soft X-ray background in the energy band from 0.15 to 0.28 keV ( 43-84 Å).
![*](https://webarchive.library.unt.edu/eot2008/20090511201911im_/http://heasarc.gsfc.nasa.gov/Images/heasarc/icons/orangeball.gif)
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Last modified: Thursday, 26-Jun-2003 13:48:53 EDT