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Accuracy of Pyrometry of a Tungsten Surface Heated by Submillisecond Laser Radiation.

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Title: Accuracy of Pyrometry of a Tungsten Surface Heated by Submillisecond Laser Radiation.
Authors: Ryzhkov, G. A.1 (AUTHOR) ryzhkov.george98@gmail.com, Vyacheslavov, L. N.1 (AUTHOR) vyachesl@gmail.com, Kasatov, A. A.1,2 (AUTHOR) a.a.kasatov@gmail.com, Popov, V. A.1,2 (AUTHOR) v.a.popov94@gmail.com, Cherepanov, D. E.1 (AUTHOR) dcherepanov9884@gmail.com
Source: Physics of Atomic Nuclei. Dec2025, Vol. 88 Issue 7, p1343-1354. 12p.
Subjects: Pyrometry, Tungsten, Temperature measurements, Laser beams, Thermal shock, Heat flux, Emissivity, Surface roughness
Abstract: An experimental facility has been created at the Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences for simulating pulsed thermal loads using a laser pulse of submillisecond duration pulse. Tungsten was used as the test sample material, for which the surface temperature was determined by pyrometry. The main factors affecting the temperature measurment accuracy by this method are that there is the need to take into account the surface roughness of the samples, and also that the literature contains different emissivity data that are not consistent with each other. However, the results of theoretical simulation showed that these factors have little effect on pyrometry accuracy. Based on of the thermophysical data of tungsten and the parameters of the laser pulse, the temporal dynamics of the tungsten surface temperature during thermal shock are simulated. The obtained experimental data are consistent with theoretical simulation. [ABSTRACT FROM AUTHOR]
Copyright of Physics of Atomic Nuclei is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 191573554
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  Data: Accuracy of Pyrometry of a Tungsten Surface Heated by Submillisecond Laser Radiation.
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  Data: <searchLink fieldCode="JN" term="%22Physics+of+Atomic+Nuclei%22">Physics of Atomic Nuclei</searchLink>. Dec2025, Vol. 88 Issue 7, p1343-1354. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Pyrometry%22">Pyrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten%22">Tungsten</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+measurements%22">Temperature measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+shock%22">Thermal shock</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+flux%22">Heat flux</searchLink><br /><searchLink fieldCode="DE" term="%22Emissivity%22">Emissivity</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+roughness%22">Surface roughness</searchLink>
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  Data: An experimental facility has been created at the Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences for simulating pulsed thermal loads using a laser pulse of submillisecond duration pulse. Tungsten was used as the test sample material, for which the surface temperature was determined by pyrometry. The main factors affecting the temperature measurment accuracy by this method are that there is the need to take into account the surface roughness of the samples, and also that the literature contains different emissivity data that are not consistent with each other. However, the results of theoretical simulation showed that these factors have little effect on pyrometry accuracy. Based on of the thermophysical data of tungsten and the parameters of the laser pulse, the temporal dynamics of the tungsten surface temperature during thermal shock are simulated. The obtained experimental data are consistent with theoretical simulation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Physics of Atomic Nuclei is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1134/S1063778825070063
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        Text: English
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        PageCount: 12
        StartPage: 1343
    Subjects:
      – SubjectFull: Pyrometry
        Type: general
      – SubjectFull: Tungsten
        Type: general
      – SubjectFull: Temperature measurements
        Type: general
      – SubjectFull: Laser beams
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      – SubjectFull: Thermal shock
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      – SubjectFull: Heat flux
        Type: general
      – SubjectFull: Emissivity
        Type: general
      – SubjectFull: Surface roughness
        Type: general
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      – TitleFull: Accuracy of Pyrometry of a Tungsten Surface Heated by Submillisecond Laser Radiation.
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              Text: Dec2025
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