Computation of the mass attenuation coefficient of polymeric materials at specific gamma photon energies

Mirji, Rajeshwari; Lobo, Blaise

doi:10.1016/j.radphyschem.2017.03.001

Cited by 78 publications

(18 citation statements)

References 45 publications

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“…Also, in the energy range, 300–2000 keV, polymers including polyethylene (PE), polystyrene, polycarbonate, poly(vinyl alcohol), polyvinyl chloride, polyethylene terephthalate, polyvinyl pyrrolidone, polytetrafluoroethylene, polypropylene, and polymethyl methacrylate showed values of mass attenuation coefficients in good agreement with NIST data 300–2000 keV for all studied polymers. These data would use in selecting good shielding material (Mirji and Lobo 2017a , b ). Vahabi et al ( 2017 ) have reported mass attenuation coefficients for determined using MCNP4C code and XCOM program for poly-propylene, perspex, bakelite, teflon, polyethylene, polycarbonate, nylon 6–6, and polymethyl methacrylate (PMMA).…”

Section: Polymers Used In Radiological Protectionmentioning

confidence: 99%

“…The resistance of a material to radiation is attributed to many factors such as the type of radiation used, the rate of absorbed dose, radiation exposure (pulsed or continuous), area and size of the material, the surrounding environment (pressure, temperature, electric, or magnetic field) (McMillan 2019). But in inorganic materials, the radiation resistance depends on the type of chemical bond and crystal structure of the material (Wozniak et al 2017).…”

Section: Development Of Polymer Composites As Gamma-radiation Shieldimentioning

confidence: 99%

“…Besides them, aircraft personnel is prone to exposure to neutrons. Exposure to neutrons is considered critical due to the detrimental effects on the human body as they generate much denser ion paths while they deposited their energy (Mirji and Lobo 2017a , b ). Thus, there is a demand for efficient, durable, lightweight, and cost-effective materials to get protected from different types of radiation.…”

Section: Introductionmentioning

confidence: 99%

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Polymeric composite materials for radiation shielding: a review

et al. 2021

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The rising use of radioactive elements is increasing radioactive pollution and calling for advanced materials to protect individuals. For instance, polymers are promising due to their mechanical, electrical, thermal, and multifunctional properties. Moreover, composites made of polymers and high atomic number fillers should allow to obtain material with low-weight, good flexibility, and good processability. Here we review the synthesis of polymer materials for radiation protection, with focus on the role of the nanofillers. We discuss the effectivness of polymeric materials for the absorption of fast neutrons. We also present the recycling of polymers into composites.

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Section: Polymers Used In Radiological Protectionmentioning

confidence: 99%

Section: Development Of Polymer Composites As Gamma-radiation Shieldimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polymeric composite materials for radiation shielding: a review

et al. 2021

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“…The MFP is average distance of a two successive photons where reduces 63% of the total intensity will interact [30]. The HVL and TVL of the absorber should be small for the strong radiation shielding [29].…”

Section: Resultsmentioning

confidence: 99%

Investigation of Photon Attenuation Properties of CR-39 Lens

Eke

Yildirim

2020

hnps

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The purpose of this study is to investigate photon attenuation parameters of Colombia Resin-39 (CR-39) lens, which are linear attenuation coefficient (LAC), mass attenuation coefficient (MAC), half value layer (HVL), tenth value layer (TVL), mean free path (MFP), effective atomic number (Zeff) and effective electron density (Neff). MACs were determined theoretically and with simulation in the energy range from 0.01 to 105 MeV. Also, obtained MACs of CR-39 lens were compared with MACs of pure aluminum and lead. Theoretically obtained Zeff values were compared with Zeff results obtained by the computer software.The results of this study are; a) the theoretically obtained MACs values are in agreement with MACs obtained results from simulation software, b) the theoretically obtained Zeff values are in agreement with Zeff obtained by the computer software c) the MACs of CR-39 lens are much lower than MACs of pure lead whereas there is not too much differences between MACs of CR-39 and pure aluminium d) the HVLs, TVLs and MFPs rise with increasing photon energy while the LACs and MACs reduce with increasing photon energy.

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“…In this case, linear attenuation coefficient, mass attenuation coefficient, effective atomic number, exposure buildup factor, and half- and tenth-value layers must be studied because they serve as indicators of the interactions of polymers with photons. The literature reports on the interaction between polymers with neutrons and/or gamma rays [ 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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 (μ/ρ) 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 (Zeff) and electron density (Neff) 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.

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Computation of the mass attenuation coefficient of polymeric materials at specific gamma photon energies

Cited by 78 publications

References 45 publications

Polymeric composite materials for radiation shielding: a review

Polymeric composite materials for radiation shielding: a review

Investigation of Photon Attenuation Properties of CR-39 Lens

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

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