Zobrazeno 1 - 10
of 27
pro vyhledávání: '"M.Á. Ontalba Salamanca"'
Publikováno v:
Journal of Radiological Protection. 34:313-324
The main objective of automatic environmental radiation warning networks is to quantify a set of radiological parameters corresponding to the medium being monitored (water, air, etc) in the shortest possible time so as to be able to provide rapid and
Autor:
Antonio Baeza, A. Muñoz-Serrano, M. C. Jiménez-Ramos, M.Á. Ontalba-Salamanca, Javier Guillén, A. Salas
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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The occurrence of naturally occurring radionuclides in drinking water can pose health hazards in some populations, especially taking into account that routine procedures in Drinking Water Treatment Plants (DWTPs) are normally unable to remove them ef
Autor:
Inés Ortega-Feliu, M.Á. Ontalba Salamanca, M. L. de la Bandera, B. Gómez-Tubío, Miguel Ángel Respaldiza, G. Ovejero Zappino
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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A set of ancient gold jewellery was found in Cádiz (formerly Gadir, south Spain) in tombs dated in Phoenician-Archaic period (VII-VI century BC), and nowadays is exhibited in the local Museum. The production of this strategic area is of great intere
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 226:199-207
The study of a Visigothic gold cross is presented in this work. The PIXE analysis of the metal alloys and the soldering areas has been performed. Results reveal the presence of Cu–Ag–Cd–Au and Cu–Ag–Au alloys in the soldering areas. The PIX
Autor:
M.D. Ynsa, M. L. de la Bandera, F. Fernandez-Gomez, Miguel Ángel Respaldiza, M.Á. Ontalba Salamanca, G.W. Grime, B. Gómez Tubío, Francisco J. Ager, J. García López
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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6 pages.-- PACS nrs.: 81.70.Jb; 82.80.Ej; 82.80.Yc; 89.90.+n.-- et al.
A new external microbeam system has been installed recently at the +45° beam line of the 3 MV Pelletron accelerator at the Centro Nacional de Aceleradores (Sevilla, Spain).
A new external microbeam system has been installed recently at the +45° beam line of the 3 MV Pelletron accelerator at the Centro Nacional de Aceleradores (Sevilla, Spain).
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 158:275-280
Narrow regions on Tartesic (Spain, 6th century B.C.) gold jewellery items have been studied by PIXE. An external microbeam (250 μm) of 2.3 MeV protons has been used in order to determine the elemental concentrations in the various tiny elements and
Autor:
M.Á. Ontalba Salamanca, José Luis Ruvalcaba-Sil, J.G. Morales, D.M. Grimaldi, J.A. Román-Berrelleza, M.L. Gallardo, Javier Miranda
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 150:611-615
During Major Temple archaeological site excavations in Downtown Mexico City, the precinct of one of the most important Mexica military caste, the Eagle Warriors, was discovered. The ceremonial enclosure is composed of three rooms surrounded by painti
Autor:
Claudia O. López, M.Á. Ontalba Salamanca, Linda Manzanilla, Javier Miranda, José Luis Ruvalcaba-Sil, J. Cañetas Ortega
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 150:591-596
A combined analysis of IBA techniques (Proton Induced X-ray Emission (PIXE) and Rutherford Backscattering Spectroscopy (RBS)) and a complementary study by X-ray Diffraction (XRD) were performed to characterize pottery corresponding to the Epiclassic
Autor:
Guy Demortier, M.Á. Ontalba Salamanca, F. Fernandez Gomez, Miguel Ángel Respaldiza, José Luis Ruvalcaba-Sil, P. Coquay
Publikováno v:
Scopus-Elsevier
Gold jewellery artefacts of Tartesic origin (700-500 B.C.) have been studied using external beams for quantitative PIXE. Collimators along the incident proton beam (2.7 MeV) allowed the artefacts to be irradiated in narrow regions down to 350 μm in
Publikováno v:
Journal of environmental radioactivity. 100(10)
The Proserpina dam was built in Roman times to provide drinking water to Emerita Augusta (today's Merida in SW Spain). During maintenance work, a sediment core was extracted, offering an excellent opportunity to analyze the historical environmental i