波長200nmまでの分光放射照度測定

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  • The Measurement of Spectral Irradiance in Short UV Region down to 200nm

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A new method of spectroradiometry for short UV region is developed and spectral irradiance of deuterium lamps are determined down to 200 nm.<BR>This method is based upon the flat spectral sensitivity of thermal detector. The spectral irradiance from the source is determined by the detector without measuring spectral transmittance of the monochromator.<BR>The principle of this method is summarized as follows:<BR>(1) The quasi-monochromatic radiation from the first monochromator, with a compact xenon arc, is calibrated with the standard thermopile.<BR>(2) The calibrated quasi-monochromatic radiation and continuous spectrum of test source are received alternately the reflecting diffuser, which forms an entrance port of the second monochromater.<BR>(3) The second monochromator constitutes the spectroradiometor. The spectral irradiance of test source is determined by comparing of calibrated quasi-monochromatic radiation with test source.<BR>The results on deuterium lamp are with agreed well previous values in the overlapping rang from 225 nm to 200 nm.<BR>The aging characteristics of spectral irradiance of deuterium and hydrogen lamps are also examined.

収録刊行物

  • 照明学会誌

    照明学会誌 59 (9), 462-467, 1975

    一般社団法人 照明学会

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