| Authors | Keyhandokht Karimi Shahri,Yasaman Rezaei Moghadam,Atiyeh Ebrahimi-Khankook,Parisa Akhlaghi,Najmeh Mohammadi |
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| Journal | Nuclear Instruments and Methods in Physics Research B |
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| Page number | 1-10 |
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| Serial number | 557 |
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| Volume number | 1 |
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| IF | 1.389 |
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| Paper Type | Full Paper |
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| Published At | 2024 |
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| Journal Type | Electronic |
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| Journal Country | Netherlands |
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| Journal Index | ISI،JCR،Scopus |
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Abstract
The exposure (EBF) and energy absorption buildup factors (EABF) of different polymer composites (SiW,
PHEMA-WO3, CaWO4, EWO3, BaTiO3, PbCl2) has been investigated for photon isotropic source with the energy
range of 0.015–15 MeV and the penetration depth of 1–10 mean free path(mfp). Furthermore, the contribution of
bremsstrahlung effect on selected polymer composites EBF has been discussed. Simulations were performed by
MCNPX Monte Carlo code. Model validation was carried out by comparing theoretical uncollided flux and EBF of
water with similar published data. The results indicate that EBF and EABF values are dependent on the incident
photon energy and the depth of penetration. The maximum and minimum values of EBF and EABF are related to
BaTiO3 and SiW, respectively. Moreover, it is observed that considering bremsstrahlung increases values,
especially at energies greater than 3 MeV.
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