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Abstract— <p>A wavelength-dispersive technique of targeted absorption spectrometry of the <i>K</i>-jump region of X-ray photoabsorption during diffraction of a collimated polychromatic beam in a mosaic texture of highly oriented pyrographite is proposed. Comparative results of measuring the absorption spectra of Br in an aqueous solution of KBr by wavelength-dispersive and energy-dispersive methods with a silicon drift detector (SDD) are presented. This scheme makes it possible to reach an energy resolution of Δ<i>E</i>/<i>E</i> ~ 10<sup>‒3</sup> and can be used in laboratory practice and medical and biological diagnostics to determine the content of contrasting agents and study the dynamics of their transfer under stationary and repetitively pulsed irradiation regimes.</p>

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Targeted Wavelength-Dispersive Absorption Spectrometry of the K-Jump Region of X-ray Photoabsorption of a Contrasting Element in an Object

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • A. G. Turyanskiy,
  • Kyaw Zaw Lin,
  • V. M. Senkov,
  • M. Z. Ziyatdinova

摘要

Abstract—

A wavelength-dispersive technique of targeted absorption spectrometry of the K-jump region of X-ray photoabsorption during diffraction of a collimated polychromatic beam in a mosaic texture of highly oriented pyrographite is proposed. Comparative results of measuring the absorption spectra of Br in an aqueous solution of KBr by wavelength-dispersive and energy-dispersive methods with a silicon drift detector (SDD) are presented. This scheme makes it possible to reach an energy resolution of ΔE/E ~ 10‒3 and can be used in laboratory practice and medical and biological diagnostics to determine the content of contrasting agents and study the dynamics of their transfer under stationary and repetitively pulsed irradiation regimes.