@inproceedings{9e06acc061ed49108bdb96eefa7f6a0a,
title = "Temporal resolution of X-ray detector for pulsar navigation",
abstract = "Pulsar navigation is a promising new technique for space exploration because of its autonomous and deep space capability. Since the baseline of pulsar navigation approach is to observe the X rays (0.2∼20keV) emitted from pulsars, a compact high temporal resolution X-ray detector is needed. In this paper an micro-channel plate(MCP) photon counting detector sensitive to X-rays is proposed. The detection system consists of a CsI photocathode, a 50mm diameter micro-channel plate (MCP) stack, a collection anode, a preamplifier, a constant fraction discriminator(CFD) and data acquisition(DAQ). The incident X-rays photons are absorbed by CsI and converted to photoelectrons, the electrons are multiplied by MCP and collected by the anode. Anode output signal is a fast pulse which need to be amplified by preamplifier and then fed to CFD circuit and DAQ for a precise timing. The total temporal resolution(ΔT) of the entire detection system could be determined by ΔtD, the intrinsic temporal resolution of cathode-MCP-anode, and ΔtE the resolution of electronic system including preamplifier and CFD. The resolution of the detection system is tested to be 18.4ns in experiment.",
keywords = "Pulsar navigation, Temporal resolution, X-ray detector",
author = "Sheng, \{Li Zhi\} and Zhao, \{Bao Sheng\} and Hu, \{Hui Jun\} and Peng Wang and Yan, \{Qiu Rong\} and Chen, \{Bao Mei\} and Liu, \{Yong An\} and Ouyang, \{Xiao Ping\} and Ding Chen",
year = "2011",
doi = "10.1117/12.900678",
language = "English",
isbn = "9780819488374",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "International Symposium on Photoelectronic Detection and Imaging 2011",
note = "International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications ; Conference date: 24-05-2011 Through 26-05-2011",
}