Speaker
Description
This presentation addresses the end-to-end signal detection chain, from photon collection to calibrated science data, with emphasis on detector readout architectures and on-board processing strategies as used by the MAJIS instrument onboard ESA’s JUICE. We will illustrate how extreme dynamic range, low photon flux regimes, and radiation-induced transients drive detector operation choices. Correlated double sampling and sub-integration-based acquisition schemes are examined, with particular focus on precision and statistical consistency relative to noise models.
Detector characterization activities are discussed in the context of identifying and mitigating systematics such as reset anomalies and channel-dependent offsets. End-to-end pre-launch characterization strategies are presented as a prerequisite for reliable in-flight performance. In-flight calibration approaches based on frequent background and dark signal monitoring are described. Emphasis is placed on the co-design of detector operation, front-end electronics, readout timing, and calibration strategy. This performance could provide guidance for the development of future infrared instruments operating under similarly demanding observational constraints.