Studies on equivalent atomic number and photon buildup factors for some tissues and phantom materials.

Saleh, H.H.; Sharaf, J.M.; Alkhateeb, Salem; Hamideen, Mefleh S.

doi:10.1016/j.radphyschem.2019.108388

Cited by 16 publications

(6 citation statements)

References 24 publications

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“…The value of Z eq depends on the NIST-XCOM database, partial attenuation coefficient ( μ m ) comp and total attenuation coefficient ( μ m ) total . Statistically, Z eq is written in the following form: 37 …”

Section: Methodsmentioning

confidence: 99%

Gamma radiation shielding characteristics of various spinel ferrite nanocrystals: a combined experimental and theoretical investigation

Lokhande¹,

Vinayak

Mukhamale³

et al. 2021

RSC Adv.

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Section: Methodsmentioning

confidence: 99%

Gamma radiation shielding characteristics of various spinel ferrite nanocrystals: a combined experimental and theoretical investigation

Lokhande¹,

Vinayak

Mukhamale³

et al. 2021

RSC Adv.

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“…Then, by using Z eq values to get GP fitting parameters (b, c, a, X k , d) for free silicon rubber, 20% tin oxide/silicon rubber, and 50% tin oxide/silicon rubber between energy scale from 0.015 MeV to 15 MeV, using the following interpolation equation 31 , 32 . …”

Section: Radiation Measurementsmentioning

confidence: 99%

Nano tin oxide/dimethyl polysiloxane reinforced composite as a flexible radiation protecting material

Gouda

Abbas

Hammoury³

et al. 2023

Sci Rep

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Reinforced polymer composites are a recent type of advanced shielding material that has been studied experimentally and theoretically. This work described the protection properties of silicon rubber filled with nano and micro tin oxide (II). These shielding materials are evaluated by parameters such as mass attenuation coefficient, linear attenuation coefficient, mean free path, effective atomic number, and buildup factor. The morphology and mechanical properties of silicon rubber, which is reinforced with tin oxide (II) particles in terms of weight fraction and size, have been studied. The results explain that the mass attenuation coefficient increases as tin oxide (II) concentration increases at a particular photon energy. It was found that the shielding properties of nano tin oxide (II) composites are more effective than micro tin oxide (II) composites against gamma rays. The effective atomic number values increase by increasing tin oxide (II) and so on equivalent atomic number. On the other hand, increasing tin oxide (II) weight fraction led to an increase in buildup factor maximum, which proved that tin oxide (II) concentration has significant effectiveness in radiation protection.

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“…According to the GP fitting method, the buildup factor can be expressed in the following way [15][16][17]:…”

Section: Buildup Factorsmentioning

confidence: 99%

Search for Tissue Equivalent Materials Based on Exposure and Energy Absorption Buildup Factor Computations

Kadri

Alfuraih

2022

Applied Sciences

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Tissue equivalent materials (TEM) are frequently used in research as a means to determine the delivered dose to patients undergoing various therapeutic procedures. They are used in routine quality assurance and quality control procedures in diagnostic and therapeutic physics. However, very few materials that are tissue equivalent have been developed for use in research at the low photon energies involved in diagnosis radiology. The objective of this study is to describe a series of TEMs designed to radiographically imitate human tissue at diagnostic photon energies. TEMs for adipose, cortical bone, fat, lung, and muscle tissues were investigated in terms of energy absorption and exposure buildup factors for photon energy range 15–150 keV and for penetration depths up to 40 mean free path. BUF was computed based on GP-fitting method. Moreover, we also compared some radiological properties, including the total attenuation and the energy-absorption attenuation, the effective atomic number, and the CT number at 30, 100, and 120 kVp. We found that SB3, Glycerol trioleate, and MS15 perfectly mimic cortical bone, fat, and muscle tissues, respectively. Additionally, AP6 and Stracey latex are good TEM for adipose and lung tissues, respectively. The results of this work should be useful in radiation diagnosis and dosimetry applications for the large physician researcher community.

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Studies on equivalent atomic number and photon buildup factors for some tissues and phantom materials.

Cited by 16 publications

References 24 publications

Gamma radiation shielding characteristics of various spinel ferrite nanocrystals: a combined experimental and theoretical investigation

Gamma radiation shielding characteristics of various spinel ferrite nanocrystals: a combined experimental and theoretical investigation

Nano tin oxide/dimethyl polysiloxane reinforced composite as a flexible radiation protecting material

Search for Tissue Equivalent Materials Based on Exposure and Energy Absorption Buildup Factor Computations

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