\begin{document}$m$\end{document} and the scale factor \begin{document}$\alpha$\end{document}. Therefore, the reaction cross section and scattering function of particle contamination are calculated. Then, in order to obtain the effect of particle contamination on Einstein probe follow-up X-ray telescope (EP-FXT) focusing mirror, we carry out Monte Carlo simulation based on the design parameters of EP-FXT focusing mirror. Finally, the relationships among effective area, HEW, W90 and particle contamination density are calculated to characterize the influence of particle contamination on the performance of the focusing mirror. In this paper, structural and thermal model (STM) and qualification model (QM) are simulated simultaneously to make full use of their test data. By comparing the simulation results of STM effective area with the measured results, we find that the simulation results of STM effective area are accurate. When the EP-FXT is in orbit (the contamination amount is limited to less than 1.1 × 10–3), the effective area and angle resolution (HEW) meet the development requirements of EP-FXT. For the simulation of HEW, both QM and STM are in good agreement with the test results. The simulation results of HEW and effective area can be used to quantitatively analyze the effect of particle contamination on the performance of the focusing mirror. These quantitative analysis results provide a theoretical basis for the contamination prevention requirements of EP-FXT."> - 必威体育下载

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    Lü Zhong-Hua, Yang Yan-Ji, Zhu Yu-Xuan, Zhao Xiao-Fan, Yang Xiong-Tao, Chen Yong
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    • Abstract views:2212
    • PDF Downloads:48
    • Cited By:0
    Publishing process
    • Received Date:01 March 2023
    • Accepted Date:18 April 2023
    • Available Online:24 April 2023
    • Published Online:20 June 2023

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