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Updated: Mar 6, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Conversion coefficients for H'(3;Ω) for photons
1Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, D-38116 Braunschweig, Germany.
Summary
Conversion coefficients for H'(3;Ω) were calculated for a wide range of photon energies and incidence angles. This study also determined parameters for assessing air density
Area of Science:
- Medical Physics
- Radiation Dosimetry
Background:
- Accurate radiation dosimetry is crucial for radiation protection and medical imaging.
- Operational quantities like H'(3;Ω) require precise conversion coefficients for reliable dose assessment.
- Existing data may not cover the full range of energies and incidence angles needed for comprehensive studies.
Purpose of the Study:
- To calculate conversion coefficients for the operational quantity H'(3;Ω) for mono-energetic photons.
- To extend calculations to a broad energy spectrum (2 keV to 50 MeV) and various angles of incidence (0° to 180°).
- To determine parameters influencing air density effects on these conversion coefficients.
Main Methods:
- Monte Carlo simulations were employed to calculate conversion coefficients.
- Calculations were performed for mono-energetic photons across a wide energy range.
- Photon reference radiation qualities defined by ISO 4037 were also utilized.
Main Results:
- Comprehensive conversion coefficients for H'(3;Ω) were generated for mono-energetic photons.
- Data complements existing standards like ICRU 57 and ISO 4037.
- Parameters for air density correction were successfully determined.
Conclusions:
- The calculated conversion coefficients provide essential data for radiation dosimetry.
- The findings support accurate dose assessment in various radiation fields.
- The study enhances the understanding of air density's impact on dosimetric quantities.
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