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EarthCARE BBR detectors performance characterization

机译：EarthCARE BBR检测器性能表征

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摘要

The Broadband Radiometer (BBR) is an instrument being developed for the ESA EarthCARE satellite. The BBR instrument objective is to provide measurements of the reflected short-wave (0.25-4.0 μm) and emitted long-wave (4.0-50 μm) TO A radiance over three along-track views (forward, nadir and backward). The instrument has three fixed telescopes, one for each view, each containing a broadband detector. Each detector consists of an uncooled focal plane array (FPA) hybridized with a readout integrated circuit (ROIC) and a proximity electronics circuit-card assembly (CCA) packaged in an aluminum base plate with cover. The detectors, based on INO's VO_X microbolometer technology, are required to provide fast pixel response time (< 6 ms), uniform spectral response over the entire spectral range (achieved by the development of a gold black absorber), and low NEDT under the instrument operating conditions. The detectors development has now passed the critical design review (CDR) and various development units (among which the most recent is the engineering model (EM)) have been shown to meet the specification requirements. This paper first provides a description of the detector design, followed by its principles of operation. It further presents and discusses measurement and analysis results for the performance characterization of the engineering model in the context of the applicable requirements.
机译：宽带辐射仪（BBR）是为ESA EarthCARE卫星开发的仪器。 BBR仪器的目的是在三个沿航迹（向前，最低和向后）的反射率短波（0.25-4.0μm）和发射长波（4.0-50μm）TO A的辐射中进行测量。该仪器具有三个固定望远镜，每个视野一个，每个都包含一个宽带探测器。每个检测器都由一个未冷却的焦平面阵列（FPA）与一个读出集成电路（ROIC）和一个封装在带盖铝基板中的接近电子电路卡组件（CCA）混合而成。这些检测器基于INO的VO_X微辐射热测量技术，要求提供快速的像素响应时间（<6毫秒），在整个光谱范围内均一的光谱响应（通过开发金黑色吸收体实现）以及仪器下的低NEDT运行条件。探测器的开发现已通过关键设计审查（CDR），并且各种开发单元（其中最新的是工程模型（EM））已显示出符合规格要求。本文首先介绍了探测器的设计，然后介绍了其工作原理。它进一步提出并讨论了在适用要求的背景下用于工程模型性能表征的测量和分析结果。

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