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Alpha particle spectroscopy using FNTD and SIM super-resolution microscopy.

J J M Kouwenberg1, G J Kremers2, J A Slotman2

  • 1Radiation, Science & Technology, Technische Universiteit Delft Faculteit Technische Natuurwetenschappen, Mekelweg 15, Delft, the Netherlands.

Journal of Microscopy
|February 3, 2018
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Summary

Structured illumination microscopy (SIM) enhances imaging of alpha particle tracks in fluorescent nuclear track detectors (FNTD). This advanced technique offers superior resolution and reduced scattering for alpha radiation analysis.

Keywords:
Alpha radiationFNTDSIM

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Area of Science:

  • Nuclear physics and detector technology
  • Advanced imaging techniques
  • Radiation detection and characterization

Background:

  • Fluorescent nuclear track detectors (FNTDs) are used for detecting ionizing radiation.
  • Confocal laser scanning microscopy (CLSM) is a standard imaging method for FNTDs.
  • Limitations in CLSM resolution can affect detailed analysis of particle tracks.

Purpose of the Study:

  • To evaluate structured illumination microscopy (SIM) for imaging alpha particle tracks in FNTDs.
  • To compare SIM performance against confocal laser scanning microscopy (CLSM).
  • To assess the potential of SIM-FNTD combination for alpha spectroscopy and dosimetry.

Main Methods:

  • FNTDs were irradiated with an external alpha source.
  • Imaging was performed using both SIM and CLSM methodologies.
  • Alpha particle energy estimation was based on track length, direction, and intensity.

Main Results:

  • SIM imaging provided improved resolution compared to CLSM, without increasing scan time.
  • Alpha particle energy estimations using SIM data agreed well with expected distributions.
  • SIM demonstrated an almost 50% reduction in spatial scattering compared to CLSM.

Conclusions:

  • Structured illumination microscopy significantly enhances the imaging of alpha particle tracks in FNTDs.
  • The improved resolution and reduced scattering with SIM allow for more detailed studies of ionizing particle interactions.
  • The combination of SIM and FNTDs presents a promising approach for affordable and rapid alpha spectroscopy and dosimetry.