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Updated: Mar 22, 2026

Excitation-Scanning Hyperspectral Imaging Microscopy to Efficiently Discriminate Fluorescence Signals
Published on: August 22, 2019
Application of a spectral unmixing algorithm for airborne gamma-ray measurements
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This paper presents the application of a full-spectrum analysis method called spectral unmixing for gamma on-board measurements. The method's sensitivity is evaluated through experiments involving various radioactive sources, under challenging conditions such as low signal-to-noise ratios and moving sources. The results are then compared with both an algorithm developed by the CEA/DAM and currently used in operational conditions and the commercial software Genie2000®. Subsequently, spectral unmixing is applied to aerial measurement data. Finally, the study assesses and compares the method's sensitivity and its robustness against false positive alarms with an operational reference algorithm.
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