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    Öğe
    A Comprehensive Research on Gamma-Ray Attenuation Characteristics of The Metal-Doped Hap and Natural Animal Bone
    (2020) Köksal, Oğuz Kağan; Cengiz, Erhan; Tozar, Ali; Karahan, İsmail Hakki; Apaydın, Gökhan
    This investigation focuses on the gamma ray attenuation parameters of natural animal bone, iron, cobalt, copper andzinc doped Nano hydroxyapatite artificial bone powders and pure hydroxyapatite. The present specimens were excitedby means of gamma ray photons with 59.5 keV energy radiated from a 241-Amercium annular radioactive source with50 mCi activity by means of narrow beam transmission geometry. The transmitted gamma-rays were counted withusing Ultra Low Energy Germanium (Ultra-LEGe) detector with a resolution 150 eV at 5.95 keV. The gamma-rayattenuation characteristics such as mass attenuation coefficient (MAC) (µ/?), linear attenuation coefficient (LAC) (µ),half value layer (HVL), tenth value layer (TVL) and mean free path (MFP), which has a significant role in theattenuation studies, are also calculated. The values obtained were checked with the predicted values from the XCOMNIST. The results show that the attenuation data of the metal-doped hydroxyapatite synthetic bone dust is very close tothe value of the natural animal bone.
  • [ X ]
    Öğe
    A research on the gamma ray attenuation characteristics for real bone and manganese substituted artificial bone dust
    (2020) Köksal, Oğuz Kağan; Tozar, Ali; Cengiz, Erhan; Karahan, İsmail Hakki; Apaydın, Gökhan
    This research focalized on the gamma ray attenuation charesteristics of real bone andHistory:manganese substituted Nano hydroxyapatite artificial bone dusts. The current samples wereReceived:24.03.2019excited with using 59.5 keV photons emitted from an 241Am annular radioisotope source withAccepted:29.01.202050 mCi activity by using a narrow beam transmission geometry and detected with using UltraKeywords:Low Energy Germanium detector with a resolution 150 eV at 5,95 keV experimentally. TheAttenuationgamma-ray attenuation parameters such as linear attenuation coefficient, half value layer, tenthcharesteristics, Mnvalue layer and mean free path are also calculated experimentally and theoretically. Thesubstituted artificialpresent results points out that the attenuation values of the manganese substitutedbone dust, Real bone,hydroxyapatite artificial bone dust is very close to the value of the real bone.Transmission