Mr. Junhong Zhou Profile

Junhong Zhou

at Hefei Univ of Technology

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Proceedings Article | 24 October 2017 Paper

Nonlinearity measurement of silicon detector and PMT detector

Zhifeng Wu, Caihong Dai, Yanfei Wang, Ling Li, Junhong Zhou

Proceedings Volume 10463, 104631Q (2017) https://doi.org/10.1117/12.2285753

KEYWORDS: Sensors, Silicon

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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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