On-orbit calibration of soft X-ray detector on Chang'E-2 satellite
- Received Date: 2015-02-02
- Accepted Date: 1900-01-01
- Available Online: 2015-10-10
Abstract: The X-ray spectrometer is one of the satellite payloads on the Chang'E-2 satellite. The soft X-ray detector is one of the devices on the X-ray spectrometer, designed to detect the major rock-forming elements within the 0.5-10 keV range on the lunar surface. In this paper, energy linearity and energy resolution calibration is done using a weak 55Fe source. Temperature and time effects are found not to give a large error. The total uncertainty of calibration is estimated to be within 5% after correction.