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40  Articles
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Thermoluminescence  properties of ultraviolet irradiated Y2O3:Eu3+, Gd2O3:Eu3+ and Gd2O3:Er3+ nanophosphors have been reported. The materials were synthesized by gel- combustion method with EDTA- Na2 as organic agent. This method allows production of... see more

Introduction: Glass phosphors are broadly used to determine patient doses in radiation diagnostic and radiotherapy because of their good features, the dose ranges of interest are approximately  0.1 -100 mGy for clinical x-ray diagnostics, and 1-5Gy f... see more

Background: Given the importance of scattered and low doses in secondary cancer caused by radiation treatment, the point dose of critical organs, which were not subjected to radiation treatment in breast cancer radiotherapy, was measured.Objective: The pu... see more

Combining different dating techniques is fundamental to constrain the ages of archaeological findings, mainly when direct evidences for their chronological context are not available. This paper presents the results of a combined archaeological, archaeomag... see more

The article describes in detail alumina powder synthesis by different methods at varying parameters. The technique of obtaining ceramics and the research of the optical properties for determining the materials with the maximum luminescence efficiency is p... see more

Se discute la cronología en que el norte y centro de Chile fue incorporado al Tawantinsuyu. Partiendo de la ya generalizada opinión acerca de que la fecha de 1470 DC para la incorporación de estos territorios, propuesta a partir de los estu... see more

This paper aims to study a brick with inscriptions in cuneiform characters in  which the sentences are almost complete. Typological studies in agreement with historical records suggest that the tablet was manufactured in the 6th century  BCE dur... see more

The aim of this article is to show the first results of thermoluminescence and C 14 dating, correlating to archaeological sites of the State of Mato Grosso do Sul.

Recentemente ficou demonstrado que sedimentos eolicamente transportados perdem a maior parte de sua termoluminescência (TL) geológica quando expostos à luz solar (WINTLE e HUNTLEY, 1980; WINTLE, 1981; SINGHVI et al., 1982). Esta propriedade foi utilizada ... see more

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