نتایج جستجو برای: x ray absorbance
تعداد نتایج: 672634 فیلتر نتایج به سال:
Background: People occasionally undergo medical diagnostic X-ray examinations and expose their red blood cells to radiation. Radiation that is generated from medical diagnostic X-ray machines is widely used in medical diagnoses. One of the important parameters is kilo-voltage (kV) that is applied across the X-ray tube in medical diagnostic X-ray machines. Kilo-voltage influences the radiation d...
Introduction: During recent years, carcinogenic effects of X-ray have been proven. Todays, lead is used in many equipment such as coats, thyroid shield, and gloves for body protection against X-ray. However, these equipments have several disadvantegous including toxicity, heaviness, and inflexibility. Hence, newer methods like protective semisolid products (cream, ointment) for topical applica...
The red persistent luminescence phosphors SrS: Eux2+, Pry3+ (x = 0∼0.001, y 0∼0.003) were synthesized by the solid-state reaction method in a weak reducing atmosphere of active carbon. synthetic parameters, photoluminescence characteristics, and dynamic properties thermoluminescence studied systematically. According to results spectra Pry3+, energy level scheme was confirmed quantitatively. Bas...
Methyl orange dye-doped K2SO4 single crystal has been synthesized by a slow evaporation method, and its properties have investigated. The powder X-ray diffraction (PXRD) studies on the confirmed crystalline property, noncentrosymmetric system, space group P63/mmc (D64th) of crystal. reaction involved in functional grown from FTIR analysis. optical absorbance band gap were calculated UV-Vis obta...
To improve the photocatalytic activity of titanium oxide, nanometer oxide powder was mixed with a phosphoric acid solution to form an electrolyte for preparing TiO2/Al2O3 coating on surface aluminum alloy. Hydrothermal technology has been used adjust crystalline structure oxide. Scanning electron microscope observe micromorphology anodic before and after treatment using hydrothermal technology....
the present study investigated the radioprotective efficacy of lentil ( lens culinaris ) sprouts against x-ray radiation-induced cellular damage. lentil seeds were dark germinated at low temperature and the sprout extract was prepared in pbs. free radical scavenging of extract was evaluated using 2,2-diphenyl-1-picrylhydrazyl (dpph) assay and then the radioprotective potency of extract (0 to 10...
the results of researches in the field of the using x-ray in all over the world have been successful. the main subject which needs more investigation and have been allocated part of the researches in most of the atomic research institutes, is the research about possible harms of irradiated food for human beings, base on the researches, using irradiation for inhibition of sprouting and preservat...
monte carlo method is a very accurate method to optimize medical diagnostic radiology spectra and simulation of radiation transportation. using mcnp code, radiology and mammography attenuated x-rayspectraweresimulated.the ipem report number 78 was used as a reference to compare with the geant4 and mcnp simulations because of its popularity and wide availability. the results of geant4 in 40kev s...
conclusions at present, no single diagnostic procedure is able to cause damage to the embryo or fetus. there are possible harmful effects for doses above 0.2 - 0.25 gy (20-25 rad). context many women of reproductive age and pregnant women require diagnostic tests involving ionizing radiation. fetal exposure to radiation worries both the patient and the obstetricians and could lead to inappropri...
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