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Eu<3+> doped tellurate high density scintillating glass and preparation method thereof

A scintillation glass, high-density technology, applied in the field of rare earth luminescent materials, can solve the problems of high phonon energy, weak rare earth ion luminescence, etc.

Active Publication Date: 2018-03-06
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, borate glass as a matrix glass itself has high phonon energy, and the luminescence of rare earth ions is weak.

Method used

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  • Eu&lt;3+&gt; doped tellurate high density scintillating glass and preparation method thereof
  • Eu&lt;3+&gt; doped tellurate high density scintillating glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] According to the composition: 55TeO 2 -30ZnO-10Lu 2 o 3 -5Eu 2 o 3 (mol%) Weigh the TeO required for a total mass of 20 grams 2 , ZnO, Lu 2 o 3 、Eu 2 o 3 Put the powder raw materials into a mortar, mix well and grind evenly. Pour the uniformly mixed glass raw materials into a crucible, place it in an electric furnace at 900°C for 45 minutes, and then quickly pour the molten glass into a cast iron mold preheated at 350°C. After the glass is formed, transfer it to a 370°C horse Anneal in a furnace for 2 hours, cool down to room temperature naturally, cut, grind and polish the obtained glass to make scintillation glass of 10x10x1.5mm.

Embodiment 2

[0019] According to the composition: 65TeO 2 -25ZnO-8Lu 2 o 3 -2Eu 2 o 3 (mol%) Weigh the TeO required for a total mass of 20 grams 2 , ZnCO 3 、Lu 2 o 3 、Eu 2 o 3 Put the powder raw materials into a mortar, mix well and grind evenly. Pour the uniformly mixed glass raw materials into a crucible, place it in an electric furnace at 1000°C for 50 minutes, and then quickly pour the molten glass into a cast iron mold preheated at 350°C. After the glass is formed, transfer it to a 380°C horse Anneal in a furnace for 2 hours, cool down to room temperature naturally, cut, grind and polish the obtained glass to make scintillation glass of 10x10x1.5mm.

[0020] In this example, a Eu 3+ The emission spectrum of doped tellurate high-density scintillation glass is as follows figure 1 shown.

Embodiment 3

[0022] According to the composition: 70TeO 2 -20ZnO-7Lu 2 o 3 -3Eu 2 o 3 (mol%) Weigh the TeO required for a total mass of 20 grams 2 , ZnO, Lu 2 o 3 、Eu 2 o 3 Put the powder raw materials into a mortar, mix well and grind evenly. Pour the uniformly mixed glass raw materials into a crucible, place it in an electric furnace at 1000°C for 50 minutes, and then quickly pour the molten glass into a cast iron mold preheated at 350°C. After the glass is formed, transfer it to a 490°C horse Anneal in a furnace for 2 hours, cool down to room temperature naturally, cut, grind and polish the obtained glass to make scintillation glass of 10x10x1.5mm.

[0023] In this example, a Eu 3+ X-ray excitation spectra of doped tellurate high-density scintillation glass such as figure 2 shown.

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Abstract

The invention discloses an Eu<3+> doped tellurate high density scintillating glass and a preparation method thereof. The high density scintillating glass comprises the following components: TeO2, ZnO,Lu2O3 and Eu2O3. The oxides are high density compounds, and the glass prepared by high temperature melting method has a density of greater than 6 g / cm<3>. Compared with high density glass containingPb, Cd and other heavy metal elements, the glass prepared by the method provided by the invention does not contain high-pollution heavy metals Pb and Cd elements, and is more environmentally friendly.High density Lu2O3 is taken as the glass raw material, the glass density is improved and the radiation resistance of the glass is enhanced. The high density scintillating glass prepared by the methodprovided by the invention has the advantages of simple preparation method, low production cost, high glass density, and strong scintillation light output.

Description

technical field [0001] The invention relates to the technical field of rare earth luminescent materials, in particular to a Eu 3+ Doped tellurate high-density scintillation glass and its preparation method. Background technique [0002] Rare earth-doped scintillation glass can absorb high-energy particles and rays, and convert them into ultraviolet or visible light, so as to detect invisible high-energy particles and rays. Compared with traditional scintillation crystals, scintillation glass has the advantages of short preparation period, simple production process, low cost, and is suitable for the preparation of large-scale products. At present, borate glass, phosphate glass, silicate glass, germanate glass and tellurate glass have been reported for the preparation of scintillation glass. Ce 3+ , Tb 3+ 、Eu 3+ Rare earth ions such as ions are often incorporated into scintillation glass as luminescent ions. [0003] The publication number is CN102584014, and the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/12C03C3/12
CPCC03C3/122C03C4/12
Inventor 黄立辉赵静涛赵士龙徐时清
Owner CHINA JILIANG UNIV
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