title: Synchrotron-based scattered radiation from phantom materials used in X-ray CT.
abstract: Synchrotron-based scattered radiation form low-contrast phantom materials prepared from polyethylene, polystyrene, nylon, and Plexiglas is used as test objects in X-ray CT was examined with 8, 10 and 12 keV X-rays. These phantom materials of medical interest will contains varying proportions of low atomic number elements. The assessment will allowed us to estimate the fluorescence to total scattered radiation. Detected the fluorescence spectra and the associated scattered radiation from calcium hydroxyapatite phantom with 8, 10 and 12 keV synchrotron X-rays. Samples with Bonefil (60% and 70% of calcium hydroxyapatite) and Bone cream (35 approximately 45% of calcium hydroxyapatite), were used. Utilized the X-ray micro-spectroscopy beamline facility, X27A, available at NSLS, BNL, USA. The primary beam with a spot size of the order of approximately 10 mum, has been used for focusing. With this spatial resolution and high flux throuput, the synchrotron-based scattered radiation from the phantom materials were measured using a liquid-nitrogen-cooled 13-element energy-dispersive high-purity germanium detector.
authors: Istituto di Matematica e Fisica, Università degli Studi di Sassari, Sassari, Italy. donepudi_venkateswararao@rediffmail.com
authors: Donepudi V
authors: DV
authors: Rao
authors: Medasani
authors: M
authors: Swapna
authors: Roberto
authors: R
authors: Cesareo
authors: Antonio
authors: A
authors: Brunetti
authors: Tako
authors: T
authors: Akatsuka
authors: Tetsuya
authors: T
authors: Yuasa
authors: Tohoru
authors: T
authors: Takeda
authors: Giovanni E
authors: GE
authors: Gigante
mesh_terms: D017886:Durapatite / Q000737:chemistry; D006801:Humans; D009757:Nylons / Q000737:chemistry; D019047:Phantoms, Imaging; D020959:Polyethylene / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D012542:Scattering, Radiation; D013050:Spectrometry, Fluorescence; D017356:Synchrotrons; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*; D014965:X-Rays
chemical_list: D009757:Nylons; D011137:Polystyrenes; D020959:Polyethylene; D019904:Polymethyl Methacrylate; D017886:Durapatite