title: The absorbed dose in femur exposed to diagnostic radiography.
abstract: A femur phantom made of wax and a real human bone was used to study the dose during radiographical procedures. The depth dose inside the phantom was determined using DOSXYZnrc, a Monte Carlo simulation software. The results were verified with measurements using TLD-100H. It was found that for 2.5 mm aluminium filtered 84-kVp X-rays, the radiation dose in the bone reached 57 % higher than the surface dose, i.e. 3.23 mGy as opposed to 2.06 mGy at the surface. The use of real bone introduces variations in the bone density in the DOSXYZnrc model, resulting in a lower attenuation effect than expected from solid bone tissues.
authors.affiliation: Department Nuclear Medicine, Radiotherapy and Oncology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia.
authors.forename: Z
authors.initials: Z
authors.lastname: Salehi
authors.forename: A L
authors.initials: AL
authors.lastname: Yusoff
mesh_terms: D003198:Computer Simulation; D005269:Femur / Q000000981:diagnostic imaging* / Q000502:physiology*; D006801:Humans; D066298:In Vitro Techniques; D008954:Models, Biological; D015233:Models, Statistical; D011829:Radiation Dosage; D011859:Radiography; D011874:Radiometry / Q000379:methods*