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EXABCal: A program for calculating photon exposure and energy absorption buildup factors
I O Olarinoye1, R I Odiaga1, S Paul1
1Department of Physics, Federal University of Technology, Minna, Nigeria.
Heliyon
|July 31, 2019
Summary
A new program, EXABCal, calculates photon buildup factors for various materials using the Geometric Progression method. It demonstrates high accuracy when compared to established standards, offering valuable tools for radiation physics applications.
Area of Science:
- Nuclear Physics and Engineering
- Computational Physics
Background:
- Photon buildup factors are crucial for radiation shielding and dose calculations.
- Accurate computation of these factors is essential for various applications in nuclear science and engineering.
Purpose of the Study:
- To introduce EXABCal, a novel Windows-compatible program for calculating photon exposure and energy absorption buildup factors.
- To validate the program's accuracy against established reference data.
Main Methods:
- Development of the EXABCal program using Python.
- Implementation of the Geometric Progression (GP) fitting procedure for buildup factor calculations.
- Evaluation of equivalent atomic numbers and GP fitting parameters for mixtures and compounds.
Main Results:
- EXABCal accurately calculates photon buildup factors for elements, mixtures, and compounds across a wide energy range (0.015-15 MeV).
- Comparisons with American Nuclear Society (ANS) standard reference data (ANSI-6.4.3) show high accuracy with minimal errors for water, air, and concrete.
- The program efficiently determines equivalent atomic numbers and GP fitting parameters.
Conclusions:
- EXABCal is a fast, user-friendly, and accurate tool for determining photon buildup factors.
- The program is valuable for medical physicists, radiation physicists, shielding engineers, and researchers in nuclear radiation applications.
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