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Updated: Jan 28, 2026

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Conversion coefficients for effective dose calculated using anthropomorphic mesh reference phantoms with the FLUKA

Davide Bozzato1, Francesco Cerutti1, Robert Froeschl1

  • 1CERN, 1211 Geneva, Switzerland.

Journal of Radiological Protection : Official Journal of the Society for Radiological Protection
|January 26, 2026
PubMed
Summary
This summary is machine-generated.

The FLUKA Monte Carlo code now utilizes ICRP Publication 145 mesh phantoms for calculating effective dose (E). This advancement supports accurate radiation protection dosimetry for future International Commission on Radiological Protection recommendations.

Keywords:
Monte Carlo radiation transport simulationscomputational dosimetryradiation protection

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Area of Science:

  • Medical Physics
  • Radiation Dosimetry
  • Computational Physics

Background:

  • The International Commission on Radiological Protection (ICRP) has introduced new mesh-based computational phantoms in Publication 145.
  • Previous dosimetry calculations often relied on voxel-based phantoms (e.g., ICRP Publication 116).
  • Accurate dosimetry is crucial for radiation protection across various exposure scenarios.

Purpose of the Study:

  • To implement the ICRP Publication 145 mesh phantoms within the FLUKA Monte Carlo code.
  • To calculate conversion coefficients from particle fluence to effective dose (E) using these new phantoms.
  • To validate FLUKA's capability for effective dose calculations with advanced phantom models.

Main Methods:

  • Implementation of ICRP Publication 145 mesh phantoms in FLUKA.
  • Calculation of conversion coefficients for a wide range of particles and energies.
  • Simulation of broad monoenergetic particle beams under six standard irradiation geometries (AP, PA, RLAT, LLAT, ROT, ISO).
  • Comparison of results with existing voxel phantom data (ICRP 116) and Geant4 calculations.

Main Results:

  • Successful implementation of mesh phantoms in FLUKA.
  • Comprehensive dataset of conversion coefficients generated for diverse particles, energies, and geometries.
  • FLUKA demonstrates reliable effective dose calculations using the new mesh phantoms.
  • Results show good agreement with other validated codes and previous phantom data.

Conclusions:

  • FLUKA Monte Carlo code is validated for effective dose calculations using ICRP mesh phantoms.
  • This capability positions FLUKA as a suitable tool for future radiation protection recommendations.
  • Mesh phantoms are expected to supersede voxel phantoms in upcoming ICRP guidelines.