Related Experiment Video
Updated: Mar 8, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Dose coefficients for ICRP reference pediatric phantoms exposed to idealised external gamma fields
Lienard A Chang1, Steven L Simon1, Timothy J Jorgensen2
1Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD 20850, United States.
This study calculated organ and effective dose coefficients for pediatric phantoms exposed to photon radiation. Results provide more accurate radiation dose estimates for children and adolescents.
Area of Science:
- Medical Physics
- Radiation Dosimetry
- Radiological Protection
Background:
- Accurate radiation dose assessment in children is crucial for radiological protection.
- Previous dosimetric models for pediatric populations had limitations.
- The International Commission on Radiological Protection (ICRP) has introduced new reference pediatric phantoms.
Purpose of the Study:
- To calculate organ and effective dose coefficients for the ICRP reference pediatric phantoms.
- To provide comprehensive dosimetric data for children and adolescents exposed to photon radiation.
- To improve the accuracy of radiation dose estimation in pediatric populations.
Main Methods:
- Monte Carlo radiation transport simulations were employed.
- Calculations covered mono-energetic photon radiation from 0.01 to 20 MeV.
- Dose coefficients were determined for 28 organs and tissues across 10 pediatric phantoms and six irradiation geometries.
Main Results:
- Organ dose coefficients showed close agreement across ages in antero-posterior (AP) geometry.
- Significant differences in organ dose coefficients were observed for lateral irradiation geometries.
- Variations in dose coefficients were noted across different irradiation geometries and phantom ages.
Conclusions:
- This study presents the first comprehensive set of organ and effective dose coefficients for the new ICRP pediatric phantom series.
- The generated data offers more accurate dose estimates for children and adolescents compared to previous models.
- These coefficients are valuable for radiation protection and risk assessment in pediatric populations.
More Related Videos
07:31Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
Published on: May 9, 2014
10:33Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
Published on: September 4, 2017
Related Concept Videos
Biological Effects of Radiation
Drug Dosing: Infants and Children
Pharmacokinetics in Pediatric Patients: Drug Distribution
Dosage Regimens: Partial Pharmacokinetic Parameters
Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption