Analysis of Diffraction Effects in Visible Wavelength Tests for Wolter-I X-Ray Telescope

Ke Yu; Fengqi Li; Yanji Yang; Zijian Zhao; Bing Lu; Jiawei Zhang; Yong Chen; Kaiji Wu

doi:10.3788/LOP222444

Laser & Optoelectronics Progress, Volume. 60, Issue 19, 1926002(2023)

Analysis of Diffraction Effects in Visible Wavelength Tests for Wolter-I X-Ray Telescope

Ke Yu¹, Fengqi Li^1、*, Yanji Yang², Zijian Zhao², Bing Lu², Jiawei Zhang², Yong Chen^2、**, and Kaiji Wu³

Author Affiliations

¹School of Science, Shenyang Ligong University, Shenyang 110159, Liaoning , China

²Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

³Harbin Institute of Technology, Harbin 150001, Heilongjiang , China

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Figures & Tables(7)

Fig. 1. Diagram of the visible light test facility for Wolter-I focusing mirror shells

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Fig. 2. Schematic of the light path for the Wolter-I focusing mirror

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Fig. 3. Diagram of the searching focus on-axis of the mirror shell (example data from EP-FXT#23 mirror shell)

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Fig. 4. 40 mm extra focal of the 18th EP-FXT mirror shell

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$Diffraction effect of all EP-FXT focusing mirror shells at 473 nm parallel visible light$

Fig. 5. Diffraction effect of all EP-FXT focusing mirror shells at 473 nm parallel visible light

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Fig. 6. Testing results of the 18th EP-FXT mirror shell in visible light. (a) Focal image; (b) encircled energy function

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Table 1. Key parameters of the 18th EP-FXT focusing mirror shell
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Table 1. Key parameters of the 18th EP-FXT focusing mirror shell
Parameter Specification
Shell name EP-FXT#18
Front radius（R_max）/mm 108.86
Middle radius（R_mid）/mm 106.40
Rear radius（R_min）/mm 98.89
Length /mm 300
Thickness /mm 1.00
Focal length /mm 1600

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Ke Yu, Fengqi Li, Yanji Yang, Zijian Zhao, Bing Lu, Jiawei Zhang, Yong Chen, Kaiji Wu. Analysis of Diffraction Effects in Visible Wavelength Tests for Wolter-I X-Ray Telescope[J]. Laser & Optoelectronics Progress, 2023, 60(19): 1926002

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