Chinese Optics Letters, 2015, 13 (4): 040402, Published Online: Sep. 21, 2018   

Light source system for high-precision flat-field correction and the calibration of an array detector Download: 1188次

Author Affiliations
Laboratory of X-ray Optics and Technologies, Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Abstract
Signal distortion due to the non-uniform response of the detector degrades the measurement accuracy of most metrology instruments. In this Letter, we report a newly developed calibration source system for reference-based non-uniformity correction using a laser source, a fiber, and a diffusive module. By applying the Monte Carlo simulation, we show that the transmittance of the system highly depends on the cavity reflection of the diffusive module. We also demonstrate the use of this system to achieve a flat field at a very low non-uniformity (less than 0.2%) with proper illumination intensity, which most costly commercial integrating sphere systems traditionally cannot provide.

Fugui Yang, Qiushi Wang, Ming Li. Light source system for high-precision flat-field correction and the calibration of an array detector[J]. Chinese Optics Letters, 2015, 13(4): 040402.

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