真空紫外探测器辐射定标研究

Investigation on Radiation Calibration System of Vacuum Ultraviolet Detector

为了满足紫外光学遥感信息定量化发展的要求,构建了一套高精度真空紫外探测器辐射定标系统,以美国国家标准技术研究院(NIST)真空紫外标准探测器为标准,在120～220 nm波段上,对量子效率未知的EMR541-09-17紫外光电管进行了定标。按照国际通用不确定度评估规范,对测量结果进行不确定度分析和评估.总的传递不确定度小于2.4%。达到了在真空紫外波段对紫外探测器进行高精度定标的要求。

A high-accuracy radiation calibration system of vacuum ultraviolet（VUV） detector is established,to meet the development of the ultraviolet（UV） and VUV remote quantification.In 120～220 nm spectral range,the absolute responsivity was transferred to EMR541-09-17 ultraviolet phototube detector,on the basic of national institute of standards and technology（NIST） ultraviolet standard detector.According to the guidelines for evaluating and expressing the uncertainty of NIST measurement,the relative uncertainty of transferring is less than 2.4%.The aim of high accuracy radiation calibration of ultraviolet detector in VUV region has been obtained.