The X-ray detectors of SAX's scientific payload have been chosen to cover the very wide energy band shown in the figure above.
The three Narrow-Field-of-view Instruments (NFI) all point in the same direction and together cover the full X-ray energy range of the mission. The SAX scientific payload is completed by two Wide-Field-of-view Cameras (WFC) that point in diametrically opposed directions and are orthogonal to the NFI. This arrangement allows freedom of choice in pointing direction for WFC sky monitoring purposes.
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| Science Instrument | Task |
|---|---|
| Low Energy Concentrator Spectrometer (LECS) | X-ray spectrometry/imaging in the 0.1-10 keV energy range |
| Medium Energy Concentrator Spectrometer (MECS) | X-ray spectrometry/imaging in the 1-10 keV energy range |
| High Pressure Gas Scintillation Proportional Counter (HP-GSPC) | X-ray spectrometry in the 3-120 keV energy range |
| Phoswich Detector System (PDS) | X-ray spectrometry in the 15-300 keV energy range and Gamma-ray burst monitoring in the 60-600 keV energy range |
| Wide Field Cameras (WFCs) | X-ray spectrometry/imaging in the 2-30 keV energy range |