Exploring Statistical Properties of Curvature Radius of Lobster Eye X-Ray Optical Devices

Bin Zhang; Chen Zhang; Longhui Li; Yanfeng Dai; Zhenqing Jia; Zhixing Ling; Bowen Jiang; Shuangnan Zhang

doi:10.3788/AOS240498

Acta Optica Sinica, Volume. 44, Issue 13, 1334001(2024)

Exploring Statistical Properties of Curvature Radius of Lobster Eye X-Ray Optical Devices

Bin Zhang^1,2, Chen Zhang^1,2、*, Longhui Li^3,4、**, Yanfeng Dai^1,2, Zhenqing Jia^1,2, Zhixing Ling^1,2, Bowen Jiang^3,4, and Shuangnan Zhang⁵

Author Affiliations

¹Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

²School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China

³North Night Vision Technology Co., Ltd., Nanjing 211106, Jiangsu , China

⁴North Night Vision Technology Nanjing Research Institute Co., Ltd., Nanjing 211106, Jiangsu , China

⁵Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Figures & Tables(9)

Fig. 1. X-ray experimental principle

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Fig. 2. Optical experimental principle

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Fig. 3. Curvature radius statistics of WXT full module MPO device. (a) XCur; (b) Cur; (c) XCur_scan

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Fig. 4. Difference between X-ray and optical curvature radii of MPO lenses

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Fig. 5. Due to conical shape of microchannels, expected value of difference between X-ray curvature radius and optical curvature radius varies discretely based on hot bending on different surfaces

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Fig. 6. Curvature radius difference statistics of WXT full module X-ray MPO device

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Fig. 7. Curvature radius difference statistics of WXT full module X-ray MPO device (difference between XCur_scan and Cur)

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Table 1. Related settings of X-ray experimental setup

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Table 1. Related settings of X-ray experimental setup

Setting	Value
Vacuum degree /Pa	$10^{- 3}$
Accuracy of spatial positioning adjustment /μm	5
Operating voltage of titanium target light source /kV	2-8
Operating current of titanium target light source /mA	<0.1
Size of CMOS pixel array	2048×2040
Size of CMOS pixel /μm	11
Distance between X-ray source and CMOS /mm	15180±10

Table 2. Statistical parameters of curvature radii of WXT full module MPO device
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Table 2. Statistical parameters of curvature radii of WXT full module MPO device
Parameter
Mean
value /mm
Standard variation /mm
X-ray curvature radius 758.09 3.93
X-ray scanning fitting curvature radius 754.50 3.46
Optical curvature radius 752.00 2.67

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Bin Zhang, Chen Zhang, Longhui Li, Yanfeng Dai, Zhenqing Jia, Zhixing Ling, Bowen Jiang, Shuangnan Zhang. Exploring Statistical Properties of Curvature Radius of Lobster Eye X-Ray Optical Devices[J]. Acta Optica Sinica, 2024, 44(13): 1334001

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