Speaker
Ms
Hye Jin Park
(Medical image & science, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Description
X-ray detection, phosphor material of high resolution and high effectiveness has been researched. Rare Earth phosphor material had been used for a long time due to high atomic number and quality efficiency. But, generalization phosphors have a lot of problems with resolution and efficiency that being manufactured by Bulk phosphor. In this paper, Gd2O3:Eu3+, Y2O3:Eu nano phosphor on Europium(Eu) density, calcinations temperature and calcinations atmosphere were investigated to its influence on optical properties.
There are various types of synthesizing the nano powder with other materials for the purposes. But in this paper, nano powders of Gd2O3:Eu3+, Y2O3:Eu were synthesized using a solution-combustion method. The synthesized phosphors were characterized by using X-ray diffraction (XRD), Field-emission scanning electron microscopy (FE-SEM) and Photoluminescence spectroscopy. At 500℃, the XRD curve showed the phosphors were calcinated and cubic phase. As temperature increase, there is tendency to be cubic-phased. From optical property results, the strongest emission was at 611nm and emission peak was same to commercial bulk phosphors. The strongest luminescent intensity was achieved at 900℃. In this experiment, there was potential to patient dose reduction in the emission efficiency of nano phosphors and improvements in performance could be possible by applying radiation imaging detector.
Primary author
Ms
Hye Jin Park
(Medical image & science, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Co-authors
Mr
Dae Woo Seok
(Biomedical Engineering, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Prof.
Sang Hee Nam
(Biomedical Engineering & Medical Imaging Research Center, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Mr
Seung Pyo Jeon
(Medical image & science, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Prof.
Sung Ho Cho
(Biomedical Engineering, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Ms
Yoon Jin Lee
(Medical image & science, Inje University, Gimhae, Gyeongnam, Republic of Korea)
Mr
Young Kyu Lee
(Biomedical Engineering, Inje University, Gimhae, Gyeongnam, Republic of Korea)
