Sistema para realização de medidas de luminescência com excitação por Raios X

Química Nova

Marco Aurélio Cebim¹  Higor Henrique De Souza Oliveira¹  Nilso Barelli¹  Marian Rosaly Davolos¹ 

[1] ,Instituto de Química de Araraquara Departamento de Química Geral e Inorgânica Araraquara SP ,Brasil

关键词: X-ray phosphors;    scintillators;    spectroscopy;   

DOI  :  10.1590/S0100-40422011000600024

来源: SciELO

【 摘 要 】

In this work is presented a versatile system for X-ray excited optical luminescence (XEOL) measurements. The apparatus was assembled from a sample holder connected to an optical fiber responsibly for the acquisition of the scintillation signal. The spectrum is registered with a CCD coupled in a spectrograph provided with diffraction gratings. The system performance was analyzed by exciting GdAlO3:Eu3+ 3.0 at.% with X-rays from a diffractometer and measuring the emission spectra. The system can be used to obtain precise and reliable spectroscopic properties of samples with various conformations without the loss of the required safety when dealing with ionizing radiations.

【 授权许可】

CC BY-NC   
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