Terbium ion activated scintillation glass for producing scintillation optical fiber panels and preparation method thereof

A technology of scintillation glass and scintillation optical fiber, which is applied in the field of terbium ion activated scintillation glass and its preparation, can solve the problems of inability to realize high-resolution spatial imaging of observation targets, unimproved thermal processing performance, and inapplicability of scintillation optical fiber panels, etc., to achieve Good transparency and radiation resistance, excellent crystallization resistance, and easy chemical composition

Inactive Publication Date: 2017-05-17
JILIN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the scintillation glasses that have been reported so far, most of the scintillation glasses use rare earth ions as activators. These scintillation glass materials are mainly used as scintillator materials, and their energy resolution is poor, so it is impossible to realize the sci

Method used

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  • Terbium ion activated scintillation glass for producing scintillation optical fiber panels and preparation method thereof
  • Terbium ion activated scintillation glass for producing scintillation optical fiber panels and preparation method thereof
  • Terbium ion activated scintillation glass for producing scintillation optical fiber panels and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] According to the chemical composition of the glass in Example 1 in Table 1, the raw materials were weighed, mixed and ground in a mortar to obtain the complex; the complex was poured into a platinum crucible and melted into a melt in a glass melting furnace, and the melting temperature was 1400~ 1500°C, keep warm for 2 to 4 hours after melting, stir the glass melt every 0.5 hours during the heat preservation period, and stir for 0.5 hours to improve the melting quality and clarification quality of the glass melt; pour the melted glass melt Put the glass into a cast iron mold preheated at 400-500°C. After cooling and forming, place the glass in a muffle furnace at 600-700°C for annealing. After the holding time is 4 hours, turn off the power of the muffle furnace, and then cool down to room temperature with the furnace; The annealed scintillation glass is processed into terbium ion-activated scintillation glass for preparing scintillation optical fiber panels after cuttin...

Embodiment 2

[0024] The raw materials were weighed according to the glass component of Example 2 in Table 1, and the same melting process system and test conditions as in Example 1 were adopted. The performance of the obtained scintillation glass is: density 4.168g / cm 3 ; Refractive index 1.637; 30 ~ 300 ℃ average linear expansion coefficient 85 × 10 -7 / °C; the expansion softening point temperature is 756°C; the scintillation glass sample is excited by X-rays, and the emitted fluorescence is measured to obtain figure 2 In the emission spectrum diagram shown, the wavelength range is 450-700nm, and the strongest luminescence peak is located at 545nm.

Embodiment 3

[0026] The raw materials were weighed according to the glass component of Example 3 in Table 1, and the same melting process system and test conditions as in Example 1 were adopted. The performance of the obtained scintillation glass is: density 4.278g / cm 3 ; Refractive index 1.655; 30 ~ 300 ℃ average linear expansion coefficient 86 × 10 -7 / °C; the expansion softening point temperature is 789°C.

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Abstract

The invention discloses terbium ion activated scintillation glass for producing scintillation optical fiber panels and a preparation method thereof. The terbium ion activated scintillation glass is prepared by mixing the raw material components, melting, casting mould, annealing and post-processing. The raw material components comprises the following components in percentage by weight: 28-40% of SiO2, 5-10% of BaF2, 25-30% of BaO, 1-2% of Al2O3, 10-20% of Gd2O3, 8-18% of Tb2O3, 0-2% of Ce2O3, 0-2% of Dy2O3 and 0-1% of Sb2O3. In the scintillation glass, Ce<3+> ions, Gd<3+> ions and Dy<3+> ions are used as sensitizing agents for transmitting the absorbed energy to Tb<3+> ions, so that the luminous intensity of the scintillation glass is improved; heavy metal oxides such as Gd2O3 and BaO and the like are added into the scintillation glass, the density of the glass can be improved. The scintillation glass has the advantages of high heat stability, excellent crystallization resistance, high scintillation light emitting efficiency and capability of being drawn into glass fiber.

Description

technical field [0001] The invention relates to a scintillation glass, in particular to a terbium ion-activated scintillation glass for preparing a scintillation optical fiber panel and a preparation method thereof. Background technique [0002] Scintillator materials are a class of materials that emit light after absorbing high-energy particles or rays. It plays a very important role in high energy physics and nuclear physics, earth exploration, industrial and medical imaging and other fields. At present, scintillator crystals are mainly used in various fields of application. Although scintillation crystals have the advantages of radiation resistance, fast decay, high density, and high light output, the preparation process is complicated, the production cost is high, the luminescence characteristics of each part are different, and it is difficult to produce large quantities and large sizes. These unfavorable factors limit Applications of scintillation crystals. Compared ...

Claims

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Application Information

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IPC IPC(8): C03C6/06C03C4/12C03B25/00
CPCC03B25/00C03C1/04C03C4/12
Inventor 张勇楚学娟吕景文刘洋魏茂彬
Owner JILIN NORMAL UNIV
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