Acta Optica Sinica, Volume. 42, Issue 10, 1012002(2022)
Radiation Standard Transfer in 232--400 nm Band Based on Solar Blind Filter Radiometer
Figures & Tables(17)
Fig. 3. Measurement of out-of-band leakage of tungsten halogen lamp light source by using 280 nm channel
Fig. 4. Measurement of halogen tungsten lamp light source of using 280 nm channel by solar blind phototube ultraviolet radiometer
Fig. 11. Comparison result between ultraviolet filter radiometer and standard detector
Table 1. Parameters of R6800U-11 phototube
View tableTable 1. Parameters of R6800U-11 phototube
Parameter Description Spectral range /nm 160--350 Photocathode Cs-Te Ambient temperature /℃ -80--50 Diameter of photocathode area /mm 8 Radiant sensitivity /(A·W-1) 20 mA@250 nm and 25 ℃ Dark current /pA 1 Recommended operating voltage /V 15
Table 2. Parameters of Newport-918D standard detector
View tableTable 2. Parameters of Newport-918D standard detector
Parameter Description Spectral range /μm 0.2--1.1 Calibration uncertainty 4%@200--219 nm 2%@220--349 nm 1%@350--949 nm 4%@950--1100 nm Linearity /% ±0.5 Material Silicon-ultraviolet enhanced Active area /cm2 1 Active diameter /cm 1.13 Shape Cylinder
Table 3. Spectral irradiance values of standard lamp (k=2)
View tableTable 3. Spectral irradiance values of standard lamp (k=2)
Wavelength /nm Spectral irradiance / (μW·cm-2·nm-1) Measurement uncertainty /% 250 0.0150 2.10 260 0.0254 1.80 270 0.0427 1.70 280 0.0679 1.60 290 0.1030 1.40 300 0.1500 1.30 310 0.2140 1.30 320 0.2960 1.30 330 0.3970 1.20 340 0.5260 1.20 350 0.6750 1.20 360 0.8590 1.10 370 10.7000 1.10 380 13.1000 1.10 390 15.8000 1.10 400 19.1000 1.10 450 39.3000 0.99
Table 4. Measurement uncertainty of absolute spectral responsivity based on irradiance standard lamp
View tableTable 4. Measurement uncertainty of absolute spectral responsivity based on irradiance standard lamp
Influence factor Uncertainty at 280 nm / % Uncertainty at 300 nm / % Uncertainty at 320 nm / % Uncertainty at 340 nm / % Uncertainty at 365 nm / % Uncertainty at 380 nm / % Uncertainty at 300 nm (280-- 320 nm) /% Responsivity of each channel of radiometer 2.210 2.210 2.210 2.210 1.200 1.190 2.210 Wavelength uncertainty of monochromator 0.500 0.500 0.500 0.500 0.140 0.110 0.500 Current measurement 0.200 0.200 0.100 0.100 0.100 0.030 0.200 Standard lamp of spectral irradiance 2.100 2.100 1.100 1.100 1.100 1.100 2.100 Distance measurement (500 mm) 0.200 0.200 0.200 0.200 0.200 0.200 0.200 Repeatability 0.400 0.400 0.400 0.400 0.400 0.400 0.400 Temperature 0.030 0.030 0.030 0.030 0.030 0.030 0.030 Stray light 0.500 0.500 0.500 0.500 0.500 0.500 0.500 Non-linearity 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Wavelength uncertainty 0.240 0.210 0.190 0.160 0.140 0.110 0.210 Bandwidth effect 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Spatial uniformity 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Interpolation 0.570 0.270 0.270 0.270 0.270 0.270 0.270 Aperture area 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Combined standard uncertainty 2.350 2.300 1.420 1.420 1.340 1.330 2.300 Expanded uncertainty (k=2) 4.700 4.600 2.800 2.800 2.700 2.700 4.600
Table 5. Measurement uncertainty of ultraviolet integrating sphere radiation source
View tableTable 5. Measurement uncertainty of ultraviolet integrating sphere radiation source
Influence factor Uncertainty at 280 nm / % Uncertainty at 300 nm / % Uncertainty at 320 nm / % Uncertainty at 340 nm / % Uncertainty at 365 nm / % Uncertainty at 380 nm / % Uncertainty at 300 nm (280-- 320 nm) /% Responsivity of each channel of radiometer 2.170 2.170 2.170 2.170 2.100 2.100 2.170 Standard detector 2.000 2.000 2.000 2.000 2.000 2.000 2.000 Wavelength uncertainty of monochromator 0.500 0.500 0.500 0.500 0.500 0.500 0.500 Current measurement 0.200 0.200 0.200 0.200 0.100 0.100 0.200 Repeatability 0.400 0.400 0.400 0.400 0.400 0.400 0.400 Integrating sphere system 0.960 0.890 0.810 0.780 0.680 0.670 0.780 Surface nonuniformity 0.810 0.810 0.720 0.690 0.680 0.670 0.690 Angle nonuniformity 0.460 0.250 0.300 0.270 0.260 0.240 0.270 Xenon lamp stability 0.230 0.230 0.230 0.230 0.230 0.230 0.230 Stray light 0.500 0.500 0.50 0.50 0.500 0.500 0.500 Non-linearity 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Wavelength uncertainty 0.240 0.240 0.240 0.210 0.190 0.160 0.210 Bandwidth effect 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Spatial uniformity 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Interpolation 0.570 0.570 0.570 0.270 0.270 0.270 0.570 Aperture area 0.010 0.010 0.010 0.010 0.010 0.010 0.010 Combined standard uncertainty 2.500 2.480 2.450 2.380 2.350 2.350 2.380 Expanded uncertainty (k=2) 5.000 5.000 4.900 4.800 4.700 4.700 4.800
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Jiawei Li, Hongyao Chen, Liming Zhang, Wenxin Huang, Xiaolong Si. Radiation Standard Transfer in 232--400 nm Band Based on Solar Blind Filter Radiometer[J]. Acta Optica Sinica, 2022, 42(10): 1012002
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Oct. 20, 2021
Accepted: Dec. 14, 2021
Published Online: May. 10, 2022
The Author Email: Li Jiawei (jiawei19@mail.ustc.edu.cn), Chen Hongyao (hychen@aiofm.ac.cn)
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