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<p>A CMOS-based detector for recording atomic-emission and fluorescence spectra in environmental monitoring of natural waters has been developed. The detector employs the Hamamatsu S11639-01 CMOS linear sensor together with an STM32F401 microcontroller, providing an inexpensive solution. Dedicated software was developed to control and synchronize the detector and to enable real-time spectral visualization. Experimental tests using laboratory spectral sources demonstrated high sensitivity over the 200–950-nm spectral range and a linear response for exposure times from tens of microseconds up to several minutes. The detector successfully recorded spectra of an Hg–Ar lamp and fluorescence of a fluorescein solution, including low-intensity emission lines. The results confirmed the detector is suitable for portable hybrid sensors capable of simultaneous elemental analysis and fluorescence-based assessment of dissolved organic matter.</p>

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Development of a Detector for a Portable Atomic Emission and Fluorescence Sensor

  • 期刊论文

  • 发表日期：

    2026年7月6日

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  • I. N. Krylov,
  • S. S. Verzheniuk,
  • D. I. Sokolov,
  • T. A. Labutin

摘要

A CMOS-based detector for recording atomic-emission and fluorescence spectra in environmental monitoring of natural waters has been developed. The detector employs the Hamamatsu S11639-01 CMOS linear sensor together with an STM32F401 microcontroller, providing an inexpensive solution. Dedicated software was developed to control and synchronize the detector and to enable real-time spectral visualization. Experimental tests using laboratory spectral sources demonstrated high sensitivity over the 200–950-nm spectral range and a linear response for exposure times from tens of microseconds up to several minutes. The detector successfully recorded spectra of an Hg–Ar lamp and fluorescence of a fluorescein solution, including low-intensity emission lines. The results confirmed the detector is suitable for portable hybrid sensors capable of simultaneous elemental analysis and fluorescence-based assessment of dissolved organic matter.