STUDYING OF X-RAY STORAGE PROCESS IN BaFCl：Eu2+

Wang Zhenjia; Xiong Guangnan; Teng Feng; Xu Xurong

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STUDYING OF X-RAY STORAGE PROCESS IN BaFCl：Eu²⁺

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- STUDYING OF X-RAY STORAGE PROCESS IN BaFCl：Eu²⁺
- Chinese Journal of Luminescence Vol. 16, Issue 1, Pages: 20-26(1995)
- 作者机构：
  
  天津理工学院材料物理研究所天津,300191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：28 February 1995，
  
  Received：14 March 1994，
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王振家, 熊光楠, 滕枫, 徐叙瑢. BaFCl：Eu2+X射线存储机制的探讨[J]. 发光学报, 1995,16(1): 20-26

Wang zhenjia, Xiong Guangnan, Teng Feng, Xu Xurong. STUDYING OF X-RAY STORAGE PROCESS IN BaFCl：Eu2+[J]. Chinese Journal of Luminescence, 1995,16(1): 20-26
王振家, 熊光楠, 滕枫, 徐叙瑢. BaFCl：Eu2+X射线存储机制的探讨[J]. 发光学报, 1995,16(1): 20-26 DOI：

Wang zhenjia, Xiong Guangnan, Teng Feng, Xu Xurong. STUDYING OF X-RAY STORAGE PROCESS IN BaFCl：Eu2+[J]. Chinese Journal of Luminescence, 1995,16(1): 20-26 DOI：

摘要

本文报导了BaF

2-x

和BSFCl:Eu

(0.1%)两种粉未样品的制备过程;及其系列样品的电子自旋共振的实验结果.认为BaFCl:Eu

存储X射线的过程是:经X射线辐照后;在其晶体中形成自由电子和空穴

阴离子空位俘获一个电子形成F心

而空穴被束缚在两个氯离子上形成V

(Cl

)心

(Cl

)心经迁移被发光中心Eu

所束缚.

Abstract

The samples of BaF

2-x

and BaFCl:Eu

are prepared.It is proved that F centers and V

(Cl

)centers exist in the X-irradiated BaF

2-x

by the technique of electron spin resonance.The valent state of Eu

in BaFCl:Eu

does not change under Xirradiation and unirradiation.From above

the process of X-ray storage is advanced

after X-ray irradiate the sample of BaFCl:Eu

free electrons and holes are formed in it.The electrons are trapped in two chlorine ions to form V

(Cl

)centers.The VK(Cl

)centers migrate nearby Eu

and finally become the stable V

(Cl

)centers.

关键词

光激励发光色心X射线辐照电子自旋共振

Keywords

photostimulated luminescencecolor centerX-irradiationelectron spin resonance(ESR)

references

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