二价铕激活的氟氯化钡的合成反应机理及其在X线照像增感屏中的应用

苏勉曾; 徐晓林; 阮慎康; 龚曼玲

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二价铕激活的氟氯化钡的合成反应机理及其在X线照像增感屏中的应用

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- 二价铕激活的氟氯化钡的合成反应机理及其在X线照像增感屏中的应用
- THE REACTION MECHANISM OF SYNTHESIS OF DIVALENT EUROPIUM ACTIVATED BARIUM LUORIDE CHLORIDE AND ITS APPLICATION IN MEDICAL X-RAY INTENSIFYING SCREENS
- 发光学报 1982年3卷第2期页码：43-56
- 作者机构：
  
  北京大学化学系
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 收稿：1981-11-24，
  
  纸质出版：1982-05-30
- 稿件说明：
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苏勉曾, 徐晓林, 阮慎康, 龚曼玲. 二价铕激活的氟氯化钡的合成反应机理及其在X线照像增感屏中的应用[J]. 发光学报, 1982,3(2): 43-56

Su Mian-zeng, Xu Xiao-lin, Ruan shen-kang, Gong Man-ling. THE REACTION MECHANISM OF SYNTHESIS OF DIVALENT EUROPIUM ACTIVATED BARIUM LUORIDE CHLORIDE AND ITS APPLICATION IN MEDICAL X-RAY INTENSIFYING SCREENS[J]. Chinese Journal of Luminescence, 1982,3(2): 43-56
苏勉曾, 徐晓林, 阮慎康, 龚曼玲. 二价铕激活的氟氯化钡的合成反应机理及其在X线照像增感屏中的应用[J]. 发光学报, 1982,3(2): 43-56 DOI：

Su Mian-zeng, Xu Xiao-lin, Ruan shen-kang, Gong Man-ling. THE REACTION MECHANISM OF SYNTHESIS OF DIVALENT EUROPIUM ACTIVATED BARIUM LUORIDE CHLORIDE AND ITS APPLICATION IN MEDICAL X-RAY INTENSIFYING SCREENS[J]. Chinese Journal of Luminescence, 1982,3(2): 43-56 DOI：

摘要

二价铕激活的氟氯化钡是一种高效率的X射线发光材料。Stevels和Pingault

[1]

曾研究过BaFCl:Eu

在X射线激发下的发光性质。E.I.Du Pont公司用BaFCl:Eu

制成X射线照像用增感屏

[2]

。

Abstract

A rather simple process for preparing BaFCl:Eu phosphor of contral-lable particle size has beend developed.Refering to the phase diagram of BaCl

-BaF

-H

O system

the matrix compound BaFCl was synthesized by "homogeneous" precipitation. BaFCl thus obtained is tiny crystallite with a mean size smaller than 0.5μm EuCl

and KC1 were added to the BaFCl and heated in air to form the Eu

doped phosphor.The reaction mechanism of thermal reduction decomposition of EuCl

in pure state and in the system of BaFCl-EuCl

has been studied by equilibrium vapour pressure measurement and solid phase composition and structure determination.X-ray intensifying screens for diagnostic radiography made with this phosphor exhibit a purple-blue emission spectrum being enveloped by the sensitivity curve of the conventional blue sensitive film and have a high speed and good image quality.

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