The Journal of Neurobehavioral Sciences

Yazarlar: Huseyin Ozan Tekin , Turker Tekin Erguzel , Mesut Karahan , Muhsin Konuk , Nevzat Tarhan

Konular:-

DOI:10.5455/JNBS.1521311225

Anahtar Kelimeler:-

Özet: This study aimed to investigate the radiation attenuation properties of seven brain regions namely Frontal, Occipital, Parietal, Temporal cortexes, Hippocampus, Thalamus and Cerebellum in terms of their elemental compositions. Monte Carlo N-Particle Transport Code System-extended (MCNPX) version 2.6.0 (Los Alamos National Lab, USA) general purpose Monte Carlo code has been employed in order to calculate the mass attenuation coefficients of those aforementioned brain regions. A satisfactory agreement has been obtained on the mass attenuation coefficients (µ/ρ) calculated by MCNPX and XCOM for those brain regions under investigation. The results underlined that Cerebellum has the highest mass attenuation coefficients in terms of the radiological energy values. This can be explained by the elemental mass fraction value of Chlorine (Cl) in Cerebellum. It could be deduced that the intensity of diagnostic radiation can be more attenuated in Cerebellum than rest of the brain regions during the brain CT or brain PET examinations. The data from the present paper would be useful for the use of standard simulation geometry and mass attenuation coefficients for medical physics as well as the applications of radiation physics.

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