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Updated: Jul 17, 2026

A Protocol for Real-time 3D Single Particle Tracking
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A Protocol for Real-time 3D Single Particle Tracking

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Ion-counting nanodosemeter with particle tracking capabilities.

V Bashkirov1, R Schulte, A Breskin

  • 1Loma Linda University Medical Center, 11175 Campus Street, Loma Linda, CA 92354, USA. vbashkirov@dominion.llumc.edu

Radiation Protection Dosimetry
|February 7, 2007
PubMed
Summary

A novel tracking ion-counting nanodosemeter maps radiation ionization patterns with high resolution. This advancement aids experimental track-structure studies by correlating nanodosimetry with particle position.

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Radiation protection dosimetry·2020

Area of Science:

  • * Radiation physics and dosimetry
  • * Nanotechnology and detector development

Background:

  • * Traditional nanodosimetry lacks spatial resolution for ion distribution.
  • * Ion-counting nanodosimeters (ND) measure ions in a sensitive volume (SV).
  • * Prior NDs relied on calculated data for ion distribution within the SV.

Purpose of the Study:

  • * To introduce and evaluate a tracking nanodosemeter (ND) for radiation dosimetry.
  • * To correlate nanodosimetric data with primary particle position within the SV.
  • * To validate the system's capability in mapping ionization patterns.

Main Methods:

  • * Integration of a silicon microstrip telescope with an ion-counting ND.
  • * Testing with a 250 MeV proton beam.
  • * Correlation of particle tracking data with nanodosimetric measurements.

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Last Updated: Jul 17, 2026

A Protocol for Real-time 3D Single Particle Tracking
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Main Results:

  • * Achieved high-resolution mapping of ion registration efficiency within the SV.
  • * Demonstrated ability to map ionization patterns in 150 nm-equivalent SVs.
  • * Obtained a longitudinal resolution of approximately 5 tissue-equivalent nanometers.
  • * Showed good agreement between experimental tracking nanodosimetry data and Monte Carlo simulations.

Conclusions:

  • * The tracking ND provides unprecedented spatial resolution for radiation interaction studies.
  • * This system enables experimental validation of track structure simulations.
  • * Supports the application of ion-counting nanodosimetry in advanced research.