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Radiance temperature (at 653 nm) of tungsten at its melting point

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Abstract

The radiance temperature (at 653 nm) of tungsten at its melting point was measured using a subsecond-duration pulse-heating technique. Specimens in the form of strips with initially different surface roughnesses were used. The results do not indicate any dependence of radiance temperature (at the melting point) on initial surface or system operational conditions. The average radiance temperature (at 653 nm) at the melting point for 23 tungsten specimens is 3208 K on IPTS-68, with a standard deviation of 0.8 K and a maximum absolute deviation of 1.9 K. The total error in the radiance temperature is estimated to be not more than ± 10 K.

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Authors and Affiliations

  1. Thermophysics Division, National Bureau of Standards, 20234, Washington, D.C., USA

    A. Cezairliyan & A. P. Miiller

Authors
  1. A. Cezairliyan
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  2. A. P. Miiller
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Cezairliyan, A., Miiller, A.P. Radiance temperature (at 653 nm) of tungsten at its melting point. Int J Thermophys 3, 89–99 (1982). https://doi.org/10.1007/BF00503961

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  • DOI: https://doi.org/10.1007/BF00503961

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