AI 中文总结
该研究针对ESO的H4RG-15探测器，测试了不同温度下的余像特性，建立了相关模型与模拟方法，建议仪器设计采用灵活热接口以优化探测器工作温度。
AI 中文摘要
作为欧洲南方天文台（ESO）仪器计划的一部分，我们已为MOONS、MICADO和HARMONI仪器订购了23台H4RG-15型（2.5μm截止）探测器，还计划为欧洲极大望远镜（ELT）的未来仪器及可能的其他ESO望远镜配备更多此类探测器。在我们的综合探测器测试计划中，我们对40K至85K不同温度下的探测器余像特性进行了表征，以便为科学焦平面选择最合适的工作温度。我们报告了2019年至2025年间已测试的5台MOONS探测器和10台MICADO探测器的余像随温度变化的特性。这些探测器展现出丰富多样的余像行为，可通过参数各异的单一余像模型进行拟合。我们为每台探测器生成了余像陷阱图和余像衰减模型，既支持自动管线对余像的校正，也可使用Pyxel探测器模拟器模拟单台探测器的余像行为。每台探测器都具有独特性，且为降低余像所需的最佳工作温度各不相同。因此，我们建议在仪器设计阶段采用灵活的热接口，以便在科学探测器完成全面表征后优化其工作温度。
英文摘要
As a part of the ESO Instrumentation Program, we already ordered 23 H4RG-15 (2.5 um cut-off) detectors for the instruments MOONS, MICADO, and HARMONI, with more of these detectors planned for future instruments on the ELT as well as possibly other ESO telescopes. As part of our comprehensive detector testing program, we characterize detector persistence at different temperatures between 40 and 85 K, allowing the best-informed choice of operating temperature for the science focal planes. We report the characteristics of persistence as a function of temperature for the 5 MOONS detectors and 10 MICADO detectors that have already been tested between 2019 and 2025. These detectors show a rich variety of persistence behaviour that can be fit with a single persistence model with varying parameters. We produce persistence trap maps and a model for persistence decay for each device, allowing automatic pipeline correction of persistence and also simulation of persistence behaviour of individual detectors using the Pyxel detector simulator. Each detector was unique and had different optimal operation temperatures for reduced persistence. We therefore recommend implementing a flexible thermal interface in the instrument design phase allowing for the detector operating temperature to be optimized after the science detectors have been fully characterized.
CommentsTo be published in Proceedings of SPIE Astronomical Telescopes and Instrumentation 2026, X-Ray, Optical, and Infrared Detectors for Astronomy XII
