Related Experiment Video
Updated: Jul 7, 2026
10:33
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification (ADCI) and Dose Estimation
Published on: September 4, 2017
Specific absorbed fractions for reference individuals for the current and next general recommendations
D W Jokisch1,2
1Department of Physics and Engineering, Francis Marion University, P.O. Box 100547, Florence, SC 29501-0547, USA;
Annals of the ICRP
|July 6, 2026
Summary
Calculating radiation doses from internal radionuclides requires specific absorbed fraction (SAF) values. These values, crucial for nuclear medicine and radiation protection, are detailed for adult and pediatric reference models.
Area of Science:
- Medical Physics
- Radiation Dosimetry
- Nuclear Medicine
Background:
- Accurate internal radionuclide dose calculation relies on specific absorbed fraction (SAF) values.
- SAF quantifies energy absorbed in target tissues from a source region.
- Existing publications provide SAF values for reference adults and pediatric individuals.
Purpose of the Study:
- To review and discuss the derivation and application of specific absorbed fraction (SAF) values.
- To highlight the use of computational models and phantoms in SAF determination.
- To identify areas for future improvement in SAF calculations.
Main Methods:
- SAF values are computed using radiation transport simulations.
- Reference voxel phantoms from Publications 110 and 143 were utilized for photon, neutron, and electron transport.
- Specialized computational models addressed charged particle transport in complex geometries.
Main Results:
- SAF values are available for reference adult and pediatric models.
- Radiation transport simulations in voxel phantoms form the basis for SAF calculations.
- The study outlines methods for calculating SAF for various radionuclides and tissues.
Conclusions:
- SAF values are essential for internal dose assessments in nuclear medicine and radiation safety.
- Advancements in SAF calculations will be facilitated by mesh phantoms (Publication 145).
- Continuous refinement of SAF values is necessary for improved radiation protection recommendations.
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