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Chin. Opt. Lett.
 Home  List of Issues    Issue 06 , Vol. 09 , 2011    10.3788/COL201109.060401

X-ray photon-counting detector based on a micro-channel plate for pulsar navigation
Baomei Chen1;2, Baosheng Zhao1, Huijun Hu1;2, Qiurong Yan1;2, Lizhi Sheng1;2
1 State Key Laboratory of Transient Optics and Photonics, [Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences], Xi'an 710119, China
2 [Graduate University of Chinese Academy of Sciences], Beijing 100049, China

Chin. Opt. Lett., 2011, 09(06): pp.060401

Keywords(OCIS Code): 040.7480  040.3780  250.0040  340.7480  120.1880  

The pulse time of arrival (TOA) is a determining parameter for accurate timing and positioning in X-ray pulsar navigation. The pulse TOA can be calculated by comparing the measured arrival time with the predicted arrival time of the X-ray pulse for pulsar. In this study, in order to research the measurement of pulse arrival time, an experimental system is set up. The experimental system comprises a simulator of the X-ray pulsar, an X-ray detector, a time-measurement system, and a data-processing system. An X-ray detector base is proposed on the basis of the micro-channel plate (MCP), which is sensitive to soft X-ray in the 1–10 keV band. The MCP-based detector, the structure and principle of the experimental system, and results of the pulse profile are described in detail. In addition, a discussion of the effects of different X-ray pulse periods and the quantum efficiency of the detector on pulse-profile signal-to-noise ratio (SNR) is presented. Experimental results reveal that the SNR of the measured pulse profile becomes enhanced as the quantum efficiency of the detector increases. The SNR of the pulse profile is higher when the period of the pulse is smaller at the same integral.

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Posted online:2011/5/12

Get Citation: Baomei Chen, Baosheng Zhao, Huijun Hu, Qiurong Yan, Lizhi Sheng, "X-ray photon-counting detector based on a micro-channel plate for pulsar navigation," Chin. Opt. Lett. 09(06), 060401(2011)



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