Optics and Precision Engineering, Volume. 33, Issue 13, 2089(2025)

Centroid localization of dynamic star sensors under proton irradiation

Zhiwen LUO1,2, Jie FENG1,3,4, Qi GUO1,3,4、*, and Yudong LI1,3,4、*
Author Affiliations
  • 1Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi8300, China
  • 2University of Chinese Academy of Sciences, Beijing100049, China
  • 3Xinjiang Key Laboratory of Extreme Environment Electronics, Urumqi80011, China
  • 4State Key Laboratory of Functional Materials and Devices for Special Environmental Conditions, Urumqi830011, China
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    Figures & Tables(26)
    Star trail breakage dule to threshold segmentation
    Comparison of transient spots and star streak
    Model of star steak key point
    Schematic diagram of key point network
    Star sensor coordinate system and two rotation methods
    Four kinds of motion trajectory simulation of star streak
    Schematic of exponential tail of CIS dark current induced by proton and neutron irradiation[29]
    Unified exponential distribution of dark current increase induced by displacement damage across different particles and devices[30]
    Estimation result of semi-empirical function
    Dark current in different regions under different protons irradiation
    Energy distribution of PKAs for 10 MeV and 80 MeV proton
    Comparison between experimental and fitted dark current increase distributions
    On-site setup for online irradiation
    Example of dynamic irradiation simulated star map
    Variation of centroid deviation and miss rate with combined angular velocity respctively
    Variation of centroid deviation and miss rate with magnitude
    Variation of centroid deviation and miss rate with proton fluence
    Schematic diagram of dynamic star streak under nuclear scattering noise
    Principle diagram of centroid deviation in dynamic frames obtained by translating A2B2
    Variation of centroid deviation in real dynamic irradiation star maps with angular velocity
    Real-captured dynamic irradiation star map at 7.5 (°)/s angular velocity
    Star streak slice extracted from Fig.21
    Model heatmap response to complex-condition star maps
    • Table 1. Proton fluence in different irradiation regions

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      Table 1. Proton fluence in different irradiation regions

      CIS能量区域1#区域2#区域3#
      110 MeV3.65×10109.12×10101.82×1011
      280 MeV4.999×10101.225×10112.421×1011
    • Table 2. Different energy, angle accelerator beam intensity

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      Table 2. Different energy, angle accelerator beam intensity

      能量15°30°45°60°75°80°85°
      30 MeV700700700700700380230230
      40 MeV500500500500500606060
      50 MeV400400400400400100100100
    • Table 3. Composition of sports types in star streak dataset(2.7 million images)

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      Table 3. Composition of sports types in star streak dataset(2.7 million images)

      速度静态星点模拟旋转直线幂函数Bezier
      200 000810 000
      匀速216 000270 000236 250
      匀加速148 500270 000202 500
      速度突变148 50067 500101 250
      占比0.0750.30.20.2250.2
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    Zhiwen LUO, Jie FENG, Qi GUO, Yudong LI. Centroid localization of dynamic star sensors under proton irradiation[J]. Optics and Precision Engineering, 2025, 33(13): 2089

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    Paper Information

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    Received: Apr. 28, 2025

    Accepted: --

    Published Online: Aug. 28, 2025

    The Author Email: Qi GUO (guoqi@ms.xjb.ac.cn)

    DOI:10.37188/OPE.20253313.2089

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