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terms of the illuminance responsivity is less than 0.5 %, which is declared in our calibration and measurement capability (CMC) of the luminous intensity. ITS-90 - RTM( o C) 2 0 -2 -4 -6 -8 1500 2000 2500 3000 Temperature( o C) Figure 2. Temperature difference between the ITS-90 and the radiometric temperature measurement (RTM) at different temperatures. Table 1. Uncertainty budget of comparison of the ITS-90 and the radiometric temperature measurement at 2700 °C. Uncertainty Sources Components ( o C; k=2) the ITS-90 Temperature scale 0.68 Radiometric temperature measurement Spectral responsivity 1.07 Infrared leakage 0.17 Distance 0.35 Blackbody aperture 0.05 Radiometer aperture 0.04 Signal measurement 0.02 Comparison Stability 0.1 using blackbody Uniformity 0.15 Combined uncertainty (k=2) 2.1 To understand the difference and draw out ideas to improve the consistency, the comparison uncertainty at 2700 °C is evaluated as shown in Table 1, where the uncertainty from the ITS-90 realization, the radiometric temperature measurement, and the comparison process using the blackbody are considered. The uncertainty of the ITS-90 is estimated by the local realization of the ITS-90 and the measurement deviation of the two spectral bands of the pyrometer. Taking the uncertainty components such as the cooper fixed point blackbody, and the spectral characteristics, non-linearity of the pyrometer into account according to the standard method described in the reference [7], we estimated the ITS-90 realization uncertainty. The expanded uncertainty (k=1) increases from 0.1 °C at the copper fixed point to 0.7 °C at 3000 °C. The uncertainty of the ITS-90 is smaller than that of the radiometric temperature measurement, in which the spectral responsivity uncertainty is the dominant uncertainty component. Although the temperature differences shown in Fig. 2 are within the error bars, the uncertainty evaluation seems to be somehow optimistic. A systematic error might be mainly related to our lower assignment in scaling the spectral responsivity and the illuminance responsivity, which is observed also in the key comparisons such as CCPR-K.2.b [8] and CCPR-K3.b.2 [9]. Additionally, since the silicon-based photometer can response up to 1100 nm and the spectral emission of the blackbody is more dominant in the infrared, the calibration range of the radiometer spectral responsivity needs to be extended. The uncertainty of the infrared leakage in Table 1 is estimated by assuming a uniform leakage in the order of 10 -6 from 825 nm to 1100 nm. The infrared leakage uncertainty become more significant as the temperature deceases, resulting in 0.5 °C at 1700 °C. We expect that an improvement in the spectral responsivity measurement of the radiometer can resolve the systematic error below 2600 °C. Above 2600 °C, however, we address the pyrometer linearity as an important correction factor to be considered, which has been only measured below the irradiance level corresponding to 2600 °C. IV. Conclusion Consistency of radiometric temperature measurements with the local realization of the ITS-90 at KRISS is confirmed by comparing the blackbody temperatures measured with a reference pyrometer and a filter radiometer in a range from 1700 °C to 2900 °C. The differences are within 2 °C, which is less than the measurement uncertainty as well as our calibration and measurement capability of luminous intensity that is 0.5 %. More accurate calibration of the spectral responsivity of the radiometer in the IR range up to 1100 nm is expected to resolve the systematic error below 2600 °C. Above 2600 °C, it is necessary to check nonlinearity of the pyrometer. Acknowledgement. We are grateful to Dr. Howard Yoon and Dr. Robert D. Saunders at NIST for their continuous encouragement and valuable discussions. References [1] Khlevnoy B. B., Harrison N. J., Rogers L. J., Pollard D. F., Fox N. P., Sperfeld P., Fischer J.,Friedrich R., Metzdorf J., Seidel J., Samoylov M. L., Stolyarevskaya R. I., Khromchenko V. B.,Ogarev S. A., and Sapritsky V. I., Metrologia, 40, S39-S44, 2003. [2] Yoon H. W., Sperfeld P., Galal Yousef S., and Metzdorf J., Metrologia, 37, 377-380, 2000. [3] Sperfeld, P., Raatz, K.-H., Nawo, B., Moller, W., and Metzdorf, J. Metrologia, 32, 435-439, 1995/6. [4] Yoon H. W., Gibson C. E., and Barnes P. Y., Appl. Opt., 41, 5879-5890, 2002. [5] Lassila, A., Toivanen, P., and Ikonen, E., Measure. Sci. Technology, 8, 973-977, 1997. [6] Hahn, J. W., Park, S. N., Lee, E. S., and Rhee, C., Temperature: Its Measurement and Control in Science and Industry 6, 227-235, 1992. [7] Fisher, J., Battuello, M., Sadli, M., Ballico, M., Park, S. N., Saunders, P., Zundong, Y., Carol Johnson, B., Van der Ham, E., Sakuma, F., Machin, G., Fox, N., Li, W., Ugur, S. and Matveyev, M. Temperature: Its Measurement and Control in Science and Industry, 7, 631-638, 2003. [8] Goebel, R., and Stock, M., Metrologia, 41/1A, 2004. [9] Ikonen, E., and Holvila, J., Metrologia, 41/1A, 2004. 52
Project of absolute measuring instrument of power on the basis of high-temperature superconducting thermometer for soft X-ray radiation. A.D. Nikolenko 1 , V. F. Pindyurin. Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russian Federation Khrebtov I.A, Malyarov V.G., Khokhlov D.A., Ivanov K.V. S.I.Vavilov State Optical Institute, 199034, St.Petersburg, Russian Federation The present report considers the design and main attainable parameters of an absolute radiometer with electrical substitution of power on the base of high- temperature superconducting film bolometer cooled by the liquid nitrogen. This radiometer will be created in the framework of the ISTC project #2920 in the Vavilov State Optical Institute (St. Petersburg, Russia). As is planned, this instrument will be used as the reference detector on the "Soft X-ray metrology" station at the VEPP-3 storage ringin of the Siberian Synchrotron Radiation Center (Budker Institute of Nuclear Physics, Novosibirsk, Russia) for measurements of the soft X-ray photon flux with power circa 1mkW with an accuracy of 1%. 1 A.D.Nikolenko@inp.nsk.su Proceedings NEWRAD, 17-19 October 2005, Davos, Switzerland 53
Page 1 and 2: NEWRAD PROCEEDINGS OF THE 9 TH INTE
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Page 5 and 6: 14:50 Hiroshi Shitomi, AIST 5-3 Pho
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Page 9 and 10: 33. Drift in the absolute responsiv
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Page 17: Absolute Accuracy of Total Solar Ir
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Page 48 and 49: Table 1 Ratio of radiometric power
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Page 62 and 63: wavelength / nm U180 @ MLS band wid
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Page 70 and 71: Relative Uncertainty 0.4% 0.3% 0.2%
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Page 78 and 79: 600 mA for each set. In both cases,
Page 80 and 81: Detailed and comparative results wi
Page 82 and 83: measurement to an independent spect
Page 84 and 85: The stability of silicon n-on-p jun
Page 86 and 87: applied. Reproducibility of measure
Page 88 and 89: Mutual comparison Mutual comparison
Page 91 and 92: A comparison of the performance of
Page 93 and 94: Stray-light correction of array spe
Page 95 and 96: Characterizing the performance of U
Page 97 and 98: Optical Radiation Action Spectra fo
Page 99 and 100: A newly developed double broadband
Page 101 and 102: On potential discrepancies between
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Correcting for bandwidth effects in
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Establishment of Fiber Optic Measur
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Detector-based NIST-traceable Valid
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Long-term calibration of a New Zeal
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Drift in the absolute responsivitie
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Radiance source for CCD low-uncerta
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Improved NIR spectral responsivity
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Characterization of a portable, fib
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Synchrotron radiation based irradia
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The Spectral Irradiance and Radianc
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NIST BXR I Calibration A. Smith, T.
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NIST BXR II Infrared Transfer Radio
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Proceedings NEWRAD, 17-19 October 2
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Spectral responsivity interpolation
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Monochromator Based Calibration of
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Study of the Infrared Emissivity of
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Radiometric Stability of a Calibrat
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Session 3 Photolithography and UV P
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NEWRAD 2005: Improvements in EUV re
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Measuring pulse energy with solid s
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Vacuum ultraviolet quantum efficien
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Spatial Anisotropy of the Exciton R
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Comparison of spectral irradiance r
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Session 4 Remote sensing Proceeding
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Solar Radiometry from SORCE G. Kopp
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Inter-comparison Study of Terra and
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The Solar Bolometric Imager - Recen
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On measuring the radiant properties
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A Model of the Spectral Irradiance
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Determination of Aerosol Optical De
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Procedures of absolute calibration
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Using a Blackbody to Determine the
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On the drifts exhibited by cryogeni
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On-orbit Characterization of Terra
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Space solar patrol mission for moni
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Multi-channel ground-based and airb
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Thermal Modelling and Digital Servo
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Calibration of Filter Radiometers f
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Radiometric Calibration of a Coasta
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A Verification of the Ozone Monitor
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Session 5 Photometry and Colorimetr
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Review on new developments in Photo
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Linking Fluorescence Measurements t
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Photoluminescence from White Refere
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A Simple Stray-light Correction Mat
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New robot-based gonioreflectometer
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Rotational radiance invariance of d
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Minimizing Uncertainty for Traceabl
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Development of a total luminous flu
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Determination of the diffuser refer
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DEVELOPMENT OF A LUMINANCE STANDARD
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Measuring photon quantities in the
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Session 6 Novel techniques Proceedi
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Characterization of germanium photo
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Determination of luminous intensity
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ËÒÐ¹ÔÓØÓÒ ×ÓÙÖ ÖÐÒ
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The Measurement of Surface and Volu
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The evaluation of a pyroelectric de
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UV detector calibration based on an
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NEWRAD 2005: Non selective thermal
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NEWRAD 2005 Calibration of Current-
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Simplified diffraction effects for
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Widely Tunable Twin-Beam Light Sour
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Measurement of quantum efficiency u
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Session 7 International Comparisons
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The CCPR K1-a Key Comparison of Spe
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Comparison of Measurements of Spect
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APMP PR-S1 comparison on irradiance
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Comparison Measurements of Spectral
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Comparison of mid-infrared absorpta
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Comparison of photometer calibratio
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A Comparison of Re-C, Pt-C, and Co-
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Session 8 Radiometric and Photometr
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Application of Metal (Carbide)-Carb
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On Estimation of Distribution Tempe
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Hyperspectral Image Projectors for
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Reproducible Metal-Carbon Eutectic
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Thermodynamic temperature determina
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Spatial Light Modulator-based Advan
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Novel subtractive band-pass filters
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Analysis of the Uncertainty Propaga
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Absolute linearity measurements on
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Comparison of two methods for spect
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Precision Extended-Area Low Tempera
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Flash Measurement System for the 25
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A normal broadband irradiance (Heat
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A laser-based radiance source for c
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Furnace for High-Temperature Metal
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Investigations of Impurities in TiC
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Determining the temperature of a bl
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High-temperature fixed-point radiat
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Long-term experience in using deute
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High-temperature fixed-point radiat
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A comparison of Co-C, Pd-C, Pt-C, R
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Irradiance measurements of Re-C, Ti
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Evaluation and improvement of the p
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The Spectrally Tunable LED light So
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Session 9 Realisation of scales Pro
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The Realization and the Disseminati
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The establishment of the NPL infrar
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The PTB High-Accuracy Spectral Resp
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ÆÛ ÑØÓ ÓÖ Ø ÔÖÑÖÝ ÖÐ
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An integrated sphere radiometer as
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From X-rays to T-rays: Synchrotron
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Infrared Radiometry at LNE: charact
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Transfer standard pyrometers for ra
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Preliminary Realization of a Spectr
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New photometric standards developme
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Distribution temperature scale real
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Gloss standard calibration by spect
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Absolute cryogenic radiometry in th
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Detailed Comparison of Illuminance
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Radiometric Temperature Comparisons
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Characterization of Thermopile for
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Detector Based Traceability Chain E
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Comparison of the PTB Radiometric S
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Spectral Responsivity Scale between
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Realization of the NIST Total Spect
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Goniometric Realisation of Reflecta
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