欧几里得计划：来自地面测试的红外探测器性能概览
天体物理仪器与方法
2026-03-18 v1
摘要
本文描述了欧几里得红外探测器在发射前地面表征活动的目标、设计与发现结果。对每个像素的像素属性进行了测量和表征，包括基线值、坏像素、量子效率、像素间电容耦合、暗电流、读出噪声、转换增益、响应非线性以及图像失稳。我们详细描述了允许推导像素属性的测试流程，并present了数据采集与数据质量检查软件的实现。我们还概述了所述所有像素属性的测量协议，并提供了在校准探测器操作参数后，对欧几里得红外探测器性能的全面概览。本工作的主要结论是，欧几里得红外探测器的性能满足要求。被分类为非工作像素的比例不足0.2%。像素间电容耦合最小，相邻像素之间的串扰小于1%。95%的像素在整个欧几里得任务的整个光谱范围内显示出大于80%的量子效率。转换增益约为0.52 ADU/e⁻，不同通道之间的数值波动小于1%。复位噪声在参考像素校正后约为23 ADU。单个帧的读出噪声约为13 e⁻，在光度模式下信号估计器噪声测量为7 e⁻，在光谱获取模式下为9 e⁻。在信号水平达到80 ke⁻时，95%的像素的线性响应偏差小于5%。中位数失稳幅度小于信号的0.3%，尽管失稳在空间上存在显著变化且各探测器之间存在差异。
引用
@article{arxiv.2507.11326,
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journal= {arXiv preprint arXiv:2507.11326},
year = {2026}
}
备注
22 pages, 20 figures, 4 pages of annexes. Submitted to A&A