Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation
The radiative transfer equation (RTE) plays a fundamental role in modeling photon transport in various media such as biological tissues and atmospheric systems, where scattering phenomena are critical. In this study, the RTE is solved using two spherical harmonic-based numerical techniques: the Cheb...
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Frontiers Media S.A.
2025-06-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2025.1570080/full |
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| author | Halide Koklu |
| author_facet | Halide Koklu |
| author_sort | Halide Koklu |
| collection | DOAJ |
| description | The radiative transfer equation (RTE) plays a fundamental role in modeling photon transport in various media such as biological tissues and atmospheric systems, where scattering phenomena are critical. In this study, the RTE is solved using two spherical harmonic-based numerical techniques: the Chebyshev and Legendre polynomial methods. Both the Henyey–Greenstein (HG) and Anlı–Güngör (AG) scattering phase functions are employed to analyze their effectiveness in radiative thickness computations. The Marshak boundary condition is applied, and the eigenvalue problems are solved using Mathematica software across various single scattering albedo values (ω) and anisotropy coefficients (g). The results indicate that the AG phase function produces outcomes highly consistent with the HG function, demonstrating numerical robustness and stability for both methods. These findings suggest that the AG phase function, commonly used in neutron transport, can be effectively applied in radiative transfer modeling as a computationally efficient and accurate alternative in biomedical and atmospheric applications. |
| format | Article |
| id | doaj-art-d3cf6ea46f8942eaac157b01fa77715b |
| institution | OA Journals |
| issn | 2296-424X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj-art-d3cf6ea46f8942eaac157b01fa77715b2025-08-20T02:32:07ZengFrontiers Media S.A.Frontiers in Physics2296-424X2025-06-011310.3389/fphy.2025.15700801570080Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equationHalide KokluThe radiative transfer equation (RTE) plays a fundamental role in modeling photon transport in various media such as biological tissues and atmospheric systems, where scattering phenomena are critical. In this study, the RTE is solved using two spherical harmonic-based numerical techniques: the Chebyshev and Legendre polynomial methods. Both the Henyey–Greenstein (HG) and Anlı–Güngör (AG) scattering phase functions are employed to analyze their effectiveness in radiative thickness computations. The Marshak boundary condition is applied, and the eigenvalue problems are solved using Mathematica software across various single scattering albedo values (ω) and anisotropy coefficients (g). The results indicate that the AG phase function produces outcomes highly consistent with the HG function, demonstrating numerical robustness and stability for both methods. These findings suggest that the AG phase function, commonly used in neutron transport, can be effectively applied in radiative transfer modeling as a computationally efficient and accurate alternative in biomedical and atmospheric applications.https://www.frontiersin.org/articles/10.3389/fphy.2025.1570080/fullradiative transfer equationLegendre polynomialsChebyshev polynomialsHenyey–Greenstein phase functionradiative thickness |
| spellingShingle | Halide Koklu Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation Frontiers in Physics radiative transfer equation Legendre polynomials Chebyshev polynomials Henyey–Greenstein phase function radiative thickness |
| title | Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| title_full | Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| title_fullStr | Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| title_full_unstemmed | Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| title_short | Calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| title_sort | calculation of radiative thickness using spherical harmonic methods for the radiative transfer equation |
| topic | radiative transfer equation Legendre polynomials Chebyshev polynomials Henyey–Greenstein phase function radiative thickness |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2025.1570080/full |
| work_keys_str_mv | AT halidekoklu calculationofradiativethicknessusingsphericalharmonicmethodsfortheradiativetransferequation |