1. Silicon drift detector applied to X-ray pulsar navigation.
- Author
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Xu, Neng, Sheng, Lizhi, Su, Tong, Chen, Chen, Li, Yao, Zhao, Baosheng, and Liu, Chunliang
- Subjects
- *
SILICON detectors , *PULSARS , *X-ray detection , *TIME measurements , *NAVIGATION - Abstract
Abstract In this paper, a focused detection system for X-ray pulsar-based Navigation (XNAV) is designed based on Silicon Drift Detector (SDD). The detector electronics mainly adopts the digital trapezoidal shaping method to measure the Times-Of-Arrival (TOAs) and energy of photons. The time measurement accuracy is better than 500ns. The energy resolution is 191eV at 8.05keV, and the maximum count rate is 500kcps between 1 and 12keV. In the semi-physical simulation experiment, the filtering of noise photons by energy discrimination significantly improves the correlation degree between the cumulative pulse profile and the standard profile. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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