Yazar "Okutan, Mustafa" seçeneğine göre listele

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    A different perspective to the effective atomic number (Z(eff)) for some boron compounds and trommel sieve waste (TSW) with a new computer program ZXCOM
    (Elsevier, 2012) Yalçın, Zeynel; İçelli, Orhan; Okutan, Mustafa; Boncukcuoğlu, Recep; Artun, Ozan; Orak, Salim
    In this study, the effective atomic number (Z(eff))has been calculated for some boron compounds, such as concentrate colemanite, tincal, ulexite, boric acid, probertite and TSW (Trommel Sieve Waste) by means of ZXCOM at incident beam energy (E-0=59.543 key) and scattering angle (theta=35 degrees). We present and discuss the (Z(eff)) obtained by Rayleigh/Compton (R/C) ratio and evaluated for the purpose of radiation shielding which contains boron compounds, which are commonly used as shield materials. (C) 2012 Elsevier B.V. All rights reserved.
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    Resistivity, ESR, and radiation shielding properties of the volcanic rock materials
    (Hindawi Publishing Corporation, 2014) Nuhoğlu, Çiğdem; Tapan, Mucip; Okutan, Mustafa; Aydın, Süreyya; Yalçın, Zeynel; İçelli, Orhan; Kavanoz, H. Birtan; Orak, Salim
    Pumices have been used in cement, concrete, brick, and ceramic industries as an additive and aggregate material. It will be important to study pumice types by using a different tool as EPR which is a new technique for related material to be used for industrial aims. Electron spin resonance (ESR) spectra of the pumice types were taken by EMX-type spectrometer. Also, the current-voltage (I-V) and surface resistivity probe stand of the thin films was studied using a four-point probe measurements. The relationship between radiation shielding properties of the pumice samples and their surface resistivity, chemical, and electrokinetic properties was evaluated using simple regression analysis. Simple regression analysis indicated a strong correlation between surface resistivity and density and SiO2, Fe2O3, CaO, MgO, and TiO2 content of pumice samples in this study. It is found that a correlation between determined g-factor by EPR spectroscopy and radiation shielding is established for pumice samples.