24 October 2017 Nonlinearity measurement of silicon detector and PMT detector
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Proceedings Volume 10463, AOPC 2017: Space Optics and Earth Imaging and Space Navigation; 104631Q (2017) https://doi.org/10.1117/12.2285753
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
In photometry and radiometry, photodetectors such as silicon detector and PMT detector are widely used. In precision metrology, the uncertainty of the nonlinearity should be considered. Superposition method is used to analyse the linearity. The silicon trap detector is measured using both nonmochromator light and monochromator light. First, integrating sphere with broadband light is used to test the linearity. The result shows that the nonlinearity is (1-3)×10-4 from 1uA to 1mA. The monchromator light result shows that the nonlinearity is below 3×10-4 from 1uA to 1mA, which is consistent with the integrating sphere method. For the PMT detector, the linearity is measured only using monochromator light. Experiment shows that the nonlinearity is less than 1×10-3 through three orders of magnitude.
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Zhifeng Wu, Caihong Dai, Yanfei Wang, Ling Li, Junhong Zhou, "Nonlinearity measurement of silicon detector and PMT detector", Proc. SPIE 10463, AOPC 2017: Space Optics and Earth Imaging and Space Navigation, 104631Q (24 October 2017); doi: 10.1117/12.2285753; https://doi.org/10.1117/12.2285753
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