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Proceedings Paper

Nonlinearity measurement of silicon detector and PMT detector
Author(s): Zhi-feng Wu
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Paper 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.

Paper Details

Date Published:
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Proc. SPIE 10463, AOPC 2017: Space Optics and Earth Imaging and Space Navigation, ; doi: 10.1117/12.2285753
Show Author Affiliations
Zhi-feng Wu, National Institute of Metrology (China)


Published in SPIE Proceedings Vol. 10463:
AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Carl Nardell; Suijian Xue; Huaidong Yang, Editor(s)

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