Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma

Gavrilov, V V; Fasakhov, I K

doi:10.1134/S1063780X11120026

Title: Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma

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Abstract

It is shown that the accuracy of time-integrated measurements of pulsed X-ray emission from hot plasma with calibrated thermocouple calorimeters is mainly determined by two factors. The first and the most important factor is heating of the filter by the absorbed X-rays; as a result, the calorimeter measures the thermal radiation of the filter, which causes appreciable distortion of the temporal profile and amplitude of the recorded signal. The second factor is the dependence of the effective depth of X-ray absorption in the dielectric that covers the entrance window of the calorimeter on the energy of X-ray photons, i.e., on the recorded radiation spectrum. The results of model calculations of the calorimeter signal are compared with the experimental data.

Authors:

Gavrilov, V V; Fasakhov, I K ^[1]

Troitsk Institute for Innovation and Fusion Research (Russian Federation)

Publication Date:: Sun Jan 15 00:00:00 EST 2012

OSTI Identifier:: 22047439

Resource Type:: Journal Article

Journal Name:: Plasma Physics Reports

Additional Journal Information:: Journal Volume: 38; Journal Issue: 1; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-780X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABSORPTION; CALORIMETERS; EMISSION SPECTRA; HOT PLASMA; PHOTON EMISSION; PLASMA DIAGNOSTICS; THERMAL RADIATION; THERMOCOUPLES; X RADIATION; X-RAY SPECTRA

Citation Formats


                    Gavrilov, V V, and Fasakhov, I K. Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma.  United States: N. p., 2012. 
        Web.  doi:10.1134/S1063780X11120026.

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                    Gavrilov, V V, & Fasakhov, I K. Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma.  United States.  https://doi.org/10.1134/S1063780X11120026

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                    Gavrilov, V V, and Fasakhov, I K. 2012.  
        "Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma".  United States.  https://doi.org/10.1134/S1063780X11120026.

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@article{osti_22047439,

  title        = {Specific features of thermocouple calorimeter application for measurements of pulsed X-ray emission from plasma},

  author       = {Gavrilov, V V and Fasakhov, I K},

  abstractNote = {It is shown that the accuracy of time-integrated measurements of pulsed X-ray emission from hot plasma with calibrated thermocouple calorimeters is mainly determined by two factors. The first and the most important factor is heating of the filter by the absorbed X-rays; as a result, the calorimeter measures the thermal radiation of the filter, which causes appreciable distortion of the temporal profile and amplitude of the recorded signal. The second factor is the dependence of the effective depth of X-ray absorption in the dielectric that covers the entrance window of the calorimeter on the energy of X-ray photons, i.e., on the recorded radiation spectrum. The results of model calculations of the calorimeter signal are compared with the experimental data.},

  doi          = {10.1134/S1063780X11120026},

  url          = {https://www.osti.gov/biblio/22047439},
  journal      = {Plasma Physics Reports},

  issn         = {1063-780X},

  number       = 1,

  volume       = 38,

  place        = {United States},

  year         = {Sun Jan 15 00:00:00 EST 2012},

  month        = {Sun Jan 15 00:00:00 EST 2012}

}

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https://doi.org/10.1134/S1063780X11120026

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