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High-density terbium/cerium doped scintillation glass and preparation method thereof

A scintillation glass, cerium doping technology, applied in glass manufacturing equipment, glass molding, manufacturing tools and other directions, can solve problems such as unsatisfactory luminescence effect, concentration quenching, etc., to improve scintillation performance, improve blocking ability, improve glass The effect of density

Active Publication Date: 2021-05-28
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although Ce 3+ The ion itself can sensitize Tb 3+ ions emit light, but in actual Ce 3+ / Tb 3+ In the co-doped glass, Ce 3 + Ions are easy to cluster in the melting process and produce the effect of concentration quenching, and the luminescence effect is not ideal

Method used

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  • High-density terbium/cerium doped scintillation glass and preparation method thereof
  • High-density terbium/cerium doped scintillation glass and preparation method thereof
  • High-density terbium/cerium doped scintillation glass and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0037] The scintillation glass of this embodiment can be prepared in the following manner:

[0038] Referring to the glass composition in Table 1 below, use an electronic balance (accurate to 0.01g) to accurately weigh SiO 2 Raw material, BaO raw material, Bi 2 o 3 Raw materials, Al 2 o 3 Raw materials, La 2 o 3 Raw materials, Sb 2 o 3 Raw materials and Tb 2 o 3 Raw materials, a total of 20g of ingredients, and then use an agate mortar to fully grind and mix them evenly;

[0039] Among them, the Bi 2 o 3 The raw material is doped with Ce 3+ Ionic Bi 2 o 3 Raw materials, which are prepared by the following method: dissolving bismuth nitrate in ethylene glycol to obtain a solution with a concentration of 0.1mol / L, then adding cerium nitrate Ce (NO 3 ) 3 , so that cerium nitrate Ce(NO 3 ) 3 and bismuth nitrate Bi(NO 3 ) 3 The mass ratio is 0.08:1, add concentrated ammonia water to adjust the pH value to 9, stir evenly, transfer to a polytetrafluoroethylene rea...

Embodiment 2

[0045] The scintillation glass of this embodiment can be prepared in the following manner:

[0046] Referring to the glass composition in Table 2 below, use an electronic balance (accurate to 0.01g) to accurately weigh SiO 2 Raw material, BaO raw material, Bi 2 o 3 Raw materials, Al 2 o 3 Raw materials, La 2 o 3 Raw materials, Sb 2 o 3 Raw materials and Tb 2 o 3 Raw materials, a total of 20g of ingredients, and then use an agate mortar to fully grind and mix them evenly;

[0047] Among them, the Bi 2 o 3 The raw material is doped with Ce 3+ Ionic Bi 2 o 3 Raw materials, which are prepared by the following method: dissolving bismuth nitrate in ethylene glycol to obtain a solution with a concentration of 0.1mol / L, then adding cerium nitrate Ce (NO 3 ) 3 , so that cerium nitrate Ce(NO 3 ) 3 and bismuth nitrate Bi(NO 3 ) 3 The mass ratio is 0.01:1, add concentrated ammonia water to adjust the pH value to 9, stir evenly, transfer to a polytetrafluoroethylene rea...

Embodiment 3

[0053] The scintillation glass of this embodiment can be prepared in the following manner:

[0054] Referring to the glass composition in Table 3 below, use an electronic balance (accurate to 0.01g) to accurately weigh SiO 2 Raw material, BaO raw material, Bi 2 o 3 Raw materials, Al 2 o 3 Raw materials, La 2 o 3 Raw materials, Sb 2 o 3 Raw materials and Tb 2 o 3 Raw materials, a total of 20g of ingredients, and then use an agate mortar to fully grind and mix them evenly;

[0055] Among them, the Bi 2 o 3 The raw material is doped with Ce 3+ Ionic Bi 2 o 3 Raw materials, which are prepared by the following method: dissolving bismuth nitrate in ethylene glycol to obtain a solution with a concentration of 0.1mol / L, then adding cerium nitrate Ce (NO 3 ) 3 , so that cerium nitrate Ce(NO 3 ) 3 and bismuth nitrate Bi(NO 3 ) 3 The mass ratio is 0.15:1, add concentrated ammonia water to adjust the pH value to 9, stir evenly, transfer to a polytetrafluoroethylene rea...

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Abstract

The invention discloses high-density terbium / cerium doped scintillation glass. The scintillation glass is prepared from the following components in percentage by weight: 45-60% of SiO2, 15-25%of BaO, 5-15%of Bi2O3, 1-5%of Al2O3, 1-5%of La2O3, 0.5-1.5%of Sb2O3 and 5-15%of Tb2O3, wherein the Bi2O3 is Bi2O3 doped with Ce<3+>. The scintillation glass has the advantages of being good in chemical stability, high in scintillation light luminous efficiency and capable of being used for preparing scintillation optical fiber panels.

Description

technical field [0001] The invention relates to the technical field of scintillation glass, in particular to a high-density terbium / cerium doped scintillation glass and a preparation method thereof. Background technique [0002] A scintillation material is a material that converts high-energy particles (such as electrons, hadrons, protons, etc.) and high-energy rays (such as X-rays, β-rays, etc.) into ultraviolet or visible light. Over the past few decades, there has been a tremendous growth in the number of scintillation materials used in high-energy physics experiments, security screening, industrial non-destructive testing, geophysical prospecting, radioactivity detection, and medical diagnostic imaging. [0003] With the development of various industries, the performance requirements for the application of scintillation materials are also increasing, such as: high density, high light yield, short fluorescence lifetime, radiation resistance, etc. At the same time, conside...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/095C03C4/12C03B19/02
CPCC03C3/095C03C4/12C03B19/02
Inventor 张勇楚学娟王永丹魏茂彬杨丽丽靳迦惠夏一铭梁珺万起良
Owner JILIN NORMAL UNIV
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