System for X-Ray excited optical luminescence (xeol) measurements

Química Nova

Cebim, Marco Aurélio¹  Davolos, Marian Rosaly¹  Barelli, Nilso¹  Instituto de Química de Araraquara, Araraquara, Brasil¹  Oliveira, Higor Henrique de Souza¹ 

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

DOI  :  10.1590/S0100-40422011000600024

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown