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Abstract: IBA methods were applied to measure elemental depth profiles of precursors and superconducting MgB2 thin films deposited on glassy carbon (Good Fellows) and sapphire (Al2O3) substrates. For each type of substrates we obtained a pair of samples i.e. one amorp
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Abstract: With the scope of determining the concentrations of heavy elements in regard to the ocean´s depth in the Gulf of Tehuantepec, several samples were analyzed by using PIXE. The gradients of the concentrations of the elements found, are presented
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Abstract: In this work we present the results of the application of the light attenuation method to extract position information out of a large bidimensional scintillating plate, to be used as a neutron detector
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Abstract: The redetermined structure of glycine sodium nitrate, C2H5N2NaO5, at 150±K is reported. The compound has an overall polymeric structure whilst the glycine molecule is found in the zwitterionic form. GSN crystals were characterized by XRD powder diffraction,
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Abstract: Quartz is the most common mineral in our environment. It is found in granite, hydrothermal veins and volcanic rocks, as well as in sedimentary deposits derived from such solid materials. These sediments are also made into building materials, such as bricks a
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Abstract: Technological advances in hardware as well as new computational paradigms give us the opportunity to apply digital techniques to Pulse Shape Analysis (PSA), requiring powerful resources. In this paper, we present a PSA application based on Artificial Neural
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Abstract: We present experimental results for x-ray absorption and resonant emission at the L-edge of the transition metal in MnF2 and CoF2. The emission data are corrected for self-absorption. The data are compared with calculations in both the free-ion approximation
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Abstract: Cathodic-magnetron-deposited titanium nitride films were grown on anodized aluminum substrates and studied via AES and XPS spectroscopies to determine their depth-dependence composition. As it is well known, the native oxide grown on aluminum does not make t
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Abstract: EXAFS analysis of Bi6Ti3Fe2O18 Aurivillius ceramic was performed to elucidate the local environment of Fe cations. Experiments were performed at Stanford Synchrotron Radiation Laboratory, at T = 10, 30, 50, 75, 100 and 298 K, in fluorescence regime. EXAFS sp
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Abstract: The growing urban and tourist activity in the Mexican Caribbean coasts has resulted in an increase of chemical substances, metals in particular, discharged to the coastal waters. In order to reach an adequate management and conservation of these marine ecosy
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Abstract: Radiation damage produced by the incidence of fission fragments from a californium (252Cf) source into diamond is characterized by atomic force microscopy and Raman spectroscopy. In comparison with the original non irradiated surface, it was found cavities a
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Abstract: The response matrix of a Bonner sphere spectrometer was calculated using MCNP 4C and MCNPX 2.4.0 codes. As thermal neutron detector a 0.4 cm £; 0.4 cm 6LiI which is located at the center of a set of polyethylene spheres. The response was calculated for 0, 2,
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Abstract: The coefficient that relates the neutron source strength and room surface area with the thermal neutron fluence rates has been calculated for neutrons whose energy goes from 1 eV to 20 MeV. This coefficient was calculated using Monte Carlo methods for severa
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