Gamma-Ray Attenuation and Exposure Buildup Factor of Novel Polymers in Shielding Using Geant4 Simulation

被引：80

作者：

Alabsy, Mahmoud T. ^{[1
]}

Alzahrani, Jamila S. ^{[2
]}

Sayyed, M., I ^{[3
,4
]}

Abbas, Mahmoud, I ^{[1
]}

Tishkevich, Daria, I ^{[5
,6
]}

El-Khatib, Ahmed M. ^{[1
]}

Elsafi, Mohamed ^{[1
]}

机构：

[1] Alexandria Univ, Fac Sci, Phys Dept, Alexandria 21511, Egypt

[2] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Phys Dept, Riyadh 11671, Saudi Arabia

[3] Isra Univ, Fac Sci, Dept Phys, Amman 11622, Jordan

[4] Imam Abdulrahman Bin Faisal Univ IAU, Inst Res & Med Consultat IRMC, Dept Nucl Med Res, POB 1982, Dammam 31441, Saudi Arabia

[5] Ctr Natl Acad Sci Belarus, Lab Magnet Films Phys Sci & Pract Mat Res, Minsk 220072, BELARUS

[6] South Ural State Univ, Lab Single Crystal Growth, Chelyabinsk 454080, Russia

来源：

MATERIALS | 2021年 / 14卷 / 17期

关键词：

Geant4; simulation; radiation shielding; polymers; attenuation coefficients; XCOM software; exposure buildup factor and effective atomic number; PLASTIC MATERIALS; PROTECTION; PARAMETERS;

D O I：

10.3390/ma14175051

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polymers are often used in medical applications, therefore, some novel polymers and their interactions with photons have been studied. The gamma-ray shielding parameters for Polymethylpentene (PMP), Polybutylene terephthalate (PBT), Polyoxymethylene (POM), Polyvinylidenefluoride (PVDF), and Polychlorotrifluoroethylene (PCTFE) polymers were determined using the Geant4 simulation and discussed in the current work. The mass attenuation coefficients (mu/rho) were simulated at low and high energies between 0.059 and 1.408 MeV using different radionuclides. The accuracy of the Geant4 simulated results were checked with the XCOM software. The two different methods had good agreement with each other. Exposure buildup factor (EBF) was calculated and discussed in terms of polymers under study and photon energy. Effective atomic number (Z(eff)) and electron density (N-eff) were calculated and analyzed at different energies. Additionally, the half-value layer (HVL) of the polymers was evaluated, and the results of this parameter showed that PCTFE had the highest probability of interaction with gamma photons compared to those of the other tested polymers.

引用

页数：15

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