Yazar "Mahdi, K.H." seçeneğine göre listele

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    Calculation of radiation nuclei concentrations in fertilized and unfertilized plants samples using gamma spectroscopy
    (Anka Publishers, 2021) Alwan, A.M.; Al-Bayati, A.T.; Mahdi, K.H.; Mansour, H.L.
    The aim of this work was to estimate the concentrations of natural and artificial nuclides in some fertilized and unfertilized plant samples. These samples were collected and prepared in a petri dish for the measurements using gamma spectroscopy. The average values of238U,232Th,40K, and137Cs for the unfertilized plant samples were (11.964 ± 3.226, 8.273 ± 2.639, 402.436 ± 18.099, and 2.761 ± 1.613) respectively, and for the fertilized plant samples were (30.434 ± 5.282, 22.584 ± 4.620, 711.332 ± 25.806, and 6.986 ± 2.542) respectively. The average values of radiological hazard indices, Raeq, D, D for137Cs, (AEDE)in, (AEDE)out, I?, Hin, and Hout for the unfertilized plant samples were (54.782 ± 7.216, 27.306, 0.469, 0.134, 0.033, 0.431, 0.180, and 0.148) respectively, and for the fertilized plant samples were (117.502 ± 10.747, 57.364, 1.188, 0.281, 0.070, 0.903, 0.400, and 0.317) respectively. The present results have indicated that the fertilized plant samples have more concentrations than the unfertilized plant samples. © 2021, Anka Publishers. All rights reserved.
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    Form factor calculations for some light nuclei in the framework of electron scattering
    (American Institute of Physics Inc., 2020) Abbas, S.A.; Mahdi, K.H.; Cakmak, N.
    In this study, some selected states of p- and sd-hells namely 10B, 6Li, and 29Si nuclei were conducted, the transvers and longitudinal electron scattering form factors were studied in consideration of the configuration with higher excitation energy above the cores 4He and 16O. When using a microscopical theory, the effect of high-configuration outside the model space (Core-polarization (CP)) is included. Cohen-Kurath interaction for p-shell, Wildenthal's standard interaction for sd-shell. For core polarization calculations higher energy excitations up to 4 are considering. The addition of CP effects greatly improves the form factors calculations and explains the measured data as dependence of momentum transfer very well. © 2020 Author(s).
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    Measurement of outdoor Radon Concentrations in Soil Samples collected from Karabuk University in Turkey by using CR-39 Detector
    (IOP Publishing Ltd, 2021) Mahdi, K.H.; Erer, A.M.; Kanbur, U.; Agduk, S.; Oguz, S.; Cakmak, N.
    In this work, radon gas concentration in (35) samples of soil collected from Karabuk University in Turkey was measured by using nuclear track detector (CR-39). The content of radium, the rate of surface exhalation and the rate of mass exhalation have been assessed. The concentrations of radon were varied from (16.348 Bq.m-3) to (196.988 Bq.m-3). Results indicate that the equivalent content of radium varied from (0.386245 Bq.kg-1) to (4.654255 Bq.kg-1). The exhalation rate for surface varied from (0.002007 Bq.m-1.h-1) to (0.023031 Bq.m-1.h-1). The exhalation rate for mass varied from (0.000319 Bq.kg-1.h-1) to (0.00366 Bq.kg-1.h-1). All the obtained results found to be less than the corresponding limits for the world. Thus, based on the radon gas concentration and radiation, the equivalent content of radium (CRa), exhalation rate for the area (EArea) and exhalation rate for the mass (EMass) in this area have no risk to the human's health. © Published under licence by IOP Publishing Ltd.