CN113372004B - Borate scintillation microcrystalline glass and preparation method and application thereof - Google Patents
Borate scintillation microcrystalline glass and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses borate scintillation microcrystalline glass and a preparation method and application thereof. The chemical composition expression of the borate scintillation microcrystalline glass is Li 2 B 4 O 7 ‑(Mg 1‑x Zn x ) 4 (Ta 1‑y Nb y ) 2 O 9 Wherein x is more than or equal to 0 and less than or equal to 1,0 and less than or equal to 1, microcrystalline phase (Mg) 1‑x Zn x ) 4 (Ta 1‑y Nb y ) 2 O 9 The doping proportion of (A) is 1-20 wt%. The scintillation luminescent material is synthesized by a high-temperature solid phase method, stably exists in the air, and is safe and simple in process and easy to control. The scintillation microcrystalline glass has the light yield of 948-3606 ph/MeV under the excitation of X-rays. Wherein Li 2 B 4 O 7 ‑15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The highest light yield of (b) was 45.1% of BGO crystals.
Description
Technical Field
The invention relates to borate scintillation microcrystalline glass and a preparation method and application thereof, belonging to the technical field of scintillation luminescent glass.
Background
The scintillator is an energy conversion luminescent material with a scintillation luminescent property, can emit light in an ultraviolet or visible region under the irradiation of various ionizing radiations, high-energy particles and the like, and is combined with various photomultiplier tubes, charge-coupled devices and photodiodes to realize the detection, discrimination and quantitative analysis of various ionizing radiations and high-energy particles. The scintillator is widely applied to high-energy physical experiments, nuclear medicine imaging, industrial nondestructive inspection, safety inspection, environmental monitoring and exploration, astronomical observation and the like. Scintillators since the earliest discovered CdWO 4 Tl and Bi for commercial applications 4 Ge 3 O 12 The variety of (BGO) scintillation single crystals is continuously expanded and enriched, and the (BGO) scintillation single crystals mainly comprise single crystals, transparent ceramics, glass, macromolecules, quantum dots, gases, various composite materials and the like. The common requirements of scintillators mainly include high light yield,Fast attenuation, excellent ray cutting capability, stable physicochemical property, irradiation resistance and high energy resolution. The glass scintillator is an important scintillation material, and has obvious advantages in the aspects of high doping, large-size preparation and optical fiber besides having the common characteristic of the scintillator. Glass, as a metastable material, can be subjected to a heat treatment to obtain a nano-scale microcrystalline phase in the glass, since the size of the crystal particles is smaller than the wavelength of visible light, and light scattering caused by the crystal particles can be avoided. The scintillation property can be effectively improved by combining the glass and the microcrystal. The glass scintillator material is used as an important supplement for other scintillator materials such as crystals, organic plastics, liquid and the like, has continuously adjustable component design, a simpler large-size preparation process, an excellent cutting and hot bending process and a mature optical fiber drawing process, and has certain advantages in aspects of large-volume detectors, optical fiber imaging, position resolution, micro-area dose detection and the like. In general, glass has many potential to be explored as a scintillator, and the development of glass scintillators is a key point for the development of relevant research to develop the advantages of glass to complement other scintillators.
Patent ZL201810018733.6 discloses intrinsic luminous scintillation crystal magnesium tantalate as well as preparation method and application thereof, wherein chemical formula of intrinsic luminous scintillation crystal magnesium tantalate is Mg 4 Ta 2 O 9 Belonging to the hexagonal system, having an ilmenite structure, a scintillation light yield of 16000ph/MeV, and CdWO 4 The crystal is equivalent to about 30% of CsI (Tl) crystal optical yield, the decay time is 5 mus, and is superior to CdWO 4 Crystals, but longer than CsI (Tl) crystals. The energy resolution is 6.2 percent and is higher than that of CdWO 4 Crystal, comparable to CsI (Tl). The crystal is environment-friendly, has no problem that toxic elements pollute the environment from production, processing, application and recovery, and has potential application prospect in the aspect of a radiographic probe.
Traditional oxide systems such as silicates and aluminates have good chemical properties, but have low refractive index and large phonon energy. And the physical and chemical stability of the glass can be obviously improved by doping components capable of effectively reducing phonon energy and other stabilizing agents in a borate system. The luminescent centers generally have larger absorption and emission cross sections in borate glass, which is beneficial to fluorescence emission and energy transfer. Meanwhile, the borate system glass has the characteristics of high near infrared and visible light region (400-1400 nm) transmittance, excellent optical performance, stable physicochemical property, lower melting temperature and the like. At present, no report that a glass scintillator obtained by doping compound with borate glass is applied to the field of radiation detection exists.
Disclosure of Invention
The technical problem solved by the invention is as follows: how to obtain the scintillation microcrystalline glass with high fluorescence emission efficiency.
In order to solve the technical problem, the invention provides borate scintillation glass ceramics which is characterized in that the chemical composition expression of the borate scintillation glass ceramics is Li 2 B 4 O 7 -(Mg 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 Wherein x is more than or equal to 0 and less than or equal to 1,0 and less than or equal to 1, li 2 B 4 O 7 As a matrix, (Mg) 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 Is a microcrystalline phase.
Preferably, the light yield of the borate scintillation glass-ceramic is 948-3606 ph/MeV.
Preferably, said microcrystalline phase (Mg) 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 The doping proportion of (A) is 1-20 wt%.
The invention also provides a preparation method of the borate scintillation microcrystalline glass, which comprises the following steps: weighing raw material Li according to stoichiometric ratio 2 B 4 O 7 、MgO、Ta 2 O 5 And Nb 2 O 5 Fully grinding the raw materials in an agate mortar, pouring the ground raw materials into a corundum crucible, then putting the corundum crucible into a muffle furnace for melting treatment to obtain uniform glass liquid, then carrying out rapid cooling treatment on the glass liquid to obtain a target scintillation glass-ceramic primary product, and processing the obtained scintillation glass-ceramic primary product after cutting, surface grinding and polishing to obtain the borate scintillation glass-ceramic.
Preferably, the time of milling is 60min.
Preferably, the temperature of the melting treatment is 1000-1100 ℃ and the time is 4-12 h.
The invention also provides application of the borate scintillation microcrystalline glass in detection, discrimination and quantitative analysis of ionizing radiation and high-energy particles.
Compared with the prior art, the invention has the following beneficial effects:
1. the scintillation microcrystalline glass has high fluorescence emission efficiency, and the measured Li with the highest luminous efficiency 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The fluorescence emission efficiency of the scintillation microcrystalline glass under the excitation of X-rays is equal to 45 percent of that of BGO crystal;
2. the scintillation microcrystalline glass has good tissue uniformity, can be cast into various shapes, is easy to realize large-scale and large-size industrial production, can be used in the fields of nuclear reactors, particle physics, radiation safety, cosmic ray detection and the like, and has wide application prospect and great practical significance.
Drawings
FIG. 1 is an X-ray diffraction pattern of a scintillating microcrystalline glass produced in examples 1-8;
FIG. 2 is a spectrum of transmittance of the scintillating microcrystalline glass prepared in examples 1-4;
FIG. 3 is a spectrum of transmittance of scintillating microcrystalline glasses prepared in examples 5-8;
FIG. 4 is Li 2 B 4 O 7 -1wt％Mg 4 Ta 2 O 9 Measuring an emission spectrogram of the scintillation microcrystalline glass under the excitation of X rays;
FIG. 5 shows Li 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 Ta 2 O 9 An emission spectrogram of the scintillation microcrystalline glass measured under the excitation of X rays;
FIG. 6 is Li 2 B 4 O 7 -1wt％Mg 4 (Ta 0.5 Nb 0.5 ) 2 O 9 Measuring an emission spectrogram of the scintillation microcrystalline glass under the excitation of X rays;
FIG. 7 is Li 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 An emission spectrogram of the scintillation microcrystalline glass measured under the excitation of X rays;
FIG. 8 shows Li 2 B 4 O 7 -5wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 An emission spectrogram of the scintillation microcrystalline glass measured under the excitation of X rays;
FIG. 9 is Li 2 B 4 O 7 -10wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 An emission spectrogram of the scintillation microcrystalline glass measured under the excitation of X rays;
FIG. 10 is Li 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 Measuring an emission spectrogram of the scintillation microcrystalline glass under the excitation of X rays;
FIG. 11 is Li 2 B 4 O 7 -20wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The emission spectrum of the scintillation glass ceramics is measured under the excitation of X rays.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Example 1
Li 2 B 4 O 7 -1wt％Mg 4 Ta 2 O 9 A method for producing (LBO-1wt% MTO) scintillating microcrystalline glass comprising the steps of:
accurately weighing glass raw material Li calculated according to stoichiometric ratio 2 B 4 O 7 、MgO、Ta 2 O 5 Fully grinding the glass raw material in an agate mortar for 60 minutes, and pouring the ground raw materialPutting the glass into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1000 ℃ for heat preservation for 4 hours to obtain uniform glass liquid, then carrying out rapid cooling treatment on the glass liquid to obtain target scintillation microcrystalline glass, and processing the obtained scintillation microcrystalline glass initial product into the scintillation microcrystalline glass of the invention after cutting, surface grinding and polishing.
The X-ray diffraction peak of the product is shown as Li in figure 1 2 B 4 O 7 -1wt％Mg 4 Ta 2 O 9 Shown in the graph. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-1wt% and MTO in FIG. 2, the sample transmittance was found to be good. As shown in FIG. 4, li 2 B 4 O 7 -1wt％Mg 4 Ta 2 O 9 The 30keV X-ray excitation emission spectrum shows that the emission wavelength is 398nm, the luminous intensity is 11.8 percent of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -1wt％Mg 4 Ta 2 O 9 The light yield of (a) is 948ph/MeV.
Example 2
Li 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 Ta 2 O 9 (LBO-1wt% MZTO) scintillating microcrystalline glass manufacturing process comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 Fully grinding the glass raw material in an agate mortar for 60 minutes, pouring the ground raw material into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1000 ℃ for heat preservation for 4 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain the target scintillation glass ceramics, and processing the obtained scintillation glass ceramics into the scintillation glass ceramics after cutting, surface grinding and polishing.
The X-ray diffraction peak of the product is as Li in figure 1 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 Ta 2 O 9 Shown in the graph. As can be seen from the curve in the figure, all diffraction peaks and the markThe quasi-diffraction peaks (PDF # 08-0717) correspond. As shown by LBO-1wt% and MZTO in FIG. 2, the sample transmittance was found to be good. Li as shown in FIG. 5 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 Ta 2 O 9 The 30keV X-ray excitation emission spectrum shows that the emission wavelength is 403nm, the luminous intensity is 14.7 percent of that of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 Ta 2 O 9 The light yield of (a) was 1179ph/MeV.
Example 3
Li 2 B 4 O 7 -1wt％Mg 4 (Ta 0.5 Nb 0.5 ) 2 O 9 (LBO-1wt% MTNO) scintillating microcrystalline glass manufacturing method comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、Ta 2 O 5 、Nb 2 O 5 Fully grinding the glass raw material in an agate mortar for 60 minutes, pouring the ground raw material into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1000 ℃ for heat preservation for 4 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain the target scintillation glass ceramics, and processing the obtained scintillation glass ceramics into the scintillation glass ceramics after cutting, surface grinding and polishing.
The X-ray diffraction peak of the product is as Li in figure 1 2 B 4 O 7 -1wt％Mg 4 (Ta 0.5 Nb 0.5 ) 2 O 9 Shown in the graph. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-1wt% and MTNO in FIG. 2, the sample transmittance was found to be good. As shown in fig. 6, li 2 B 4 O 7 -1wt％Mg 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The 30keV X-ray excitation emission spectrogram shows that the emission wavelength is 399nm, the luminous intensity is 12.5 percent of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -1wt％Mg 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (2) was 998ph/MeV.
Example 4
Li 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 (LBO-1wt%MZTNO) scintillating microcrystalline glass manufacturing methods comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding glass raw materials in an agate mortar for 60 minutes, pouring the ground raw materials into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1050 ℃ for heat preservation for 8 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain target scintillation glass ceramics, and processing the obtained scintillation glass ceramics after cutting, surface grinding and polishing to obtain the scintillation glass ceramics.
The X-ray diffraction peak of the product is shown as Li in figure 1 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 As shown. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-1wt% MZTNO in FIG. 2, the sample transmittance was found to be good. As shown in fig. 7, li 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The emission wavelength of the crystal is 413nm, the luminous intensity is 18.1 percent of that of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -1wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (a) is 1445ph/MeV.
Example 5
Li 2 B 4 O 7 -5wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 A method for preparing (LBO-5 wt% mztno) scintillating microcrystalline glass comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding glass raw materials in an agate mortar for 60 minutes, pouring the ground raw materials into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1050 ℃ for heat preservation for 8 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain target scintillation microcrystalline glass, and processing the obtained scintillation microcrystalline glass primary product after cutting, surface grinding and polishing to obtain the scintillation microcrystalline glass.
The X-ray diffraction peak of the product is shown as Li in figure 1 2 B 4 O 7 -5wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 As shown. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-5wt% and MZTNO in FIG. 3, the sample transmittance was found to be good. As shown in FIG. 8, li 2 B 4 O 7 -5wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The 30keV X-ray excitation emission spectrum shows that the emission wavelength is 426nm, the luminous intensity is 20.8 percent of that of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -5wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (a) is 1665ph/MeV.
Example 6
Li 2 B 4 O 7 -10wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 (LBO-10wt% MZTNO) scintillating glass-ceramic preparation method, including the following steps:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding glass raw materials in an agate mortar for 60 minutes, pouring the ground raw materials into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1050 ℃ for heat preservation for 8 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain target scintillation glass ceramics, and processing the obtained scintillation glass ceramics after cutting, surface grinding and polishing to obtain the scintillation glass ceramics.
The X-ray diffraction peak of the product is shown as Li in figure 1 2 B 4 O 7 -10wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 As shown. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-10wt% as indicated by MZTNO in FIG. 3, the sample transmittance was found to be good. As shown in fig. 9, li 2 B 4 O 7 -10wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The 30keV X-ray excitation emission spectrogram shows that the emission wavelength is 420nm, the luminous intensity is 38.4 percent of that of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -10wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (a) is 3075ph/MeV.
Example 7
Li 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 A method for preparing (LBO-15wt% MZTNO) scintillating microcrystalline glass comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding the glass raw material in an agate mortar for 60 minutes, pouring the ground raw material into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1100 ℃ for heat preservation for 12 hours to obtain uniform glass liquid, and then rapidly cooling the glass liquid to obtain the glass liquidMarking the scintillation microcrystalline glass, and processing the obtained scintillation microcrystalline glass initial product into the scintillation microcrystalline glass after cutting, surface grinding and polishing.
The X-ray diffraction peak of the product is shown as Li in figure 1 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 As shown. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-15wt% MZTNO in FIG. 3, the sample transmittance was found to be good. As shown in fig. 10, li 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The 30keV X-ray excitation emission spectrogram shows that the emission wavelength is 426nm, the luminous intensity is 45.1 percent of that of BGO crystal, and Li is obtained by detection 2 B 4 O 7 -15wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (a) is 3606ph/MeV.
Example 8
Li 2 B 4 O 7 -20wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 A method for preparing (LBO-20wt% MZTNO) scintillating microcrystalline glass, comprising the steps of:
accurately weighing the glass raw material Li calculated according to the stoichiometric ratio by using an analytical balance 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding the glass raw material in an agate mortar for 60 minutes, pouring the ground raw material into a corundum crucible, putting the corundum crucible into a high-temperature muffle furnace at 1100 ℃ for heat preservation for 12 hours to obtain uniform glass liquid, then rapidly cooling the glass liquid to obtain the target scintillation glass ceramics, and processing the obtained scintillation glass ceramics into the scintillation glass ceramics after cutting, surface grinding and polishing.
The X-ray diffraction peak of the product is as Li in figure 1 2 B 4 O 7 -20wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 As shown. As can be seen from the graph, all diffraction peaks correspond to the standard diffraction peak (PDF # 08-0717). As shown by LBO-20wt% as MZTNO in FIG. 3, the sample transmittance was found to be good. As shown in fig. 11, li 2 B 4 O 7 -20wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The emission wavelength of the crystal is 431nm, the luminous intensity is 28.7 percent of that of BGO crystal and Li is obtained by detection 2 B 4 O 7 -20wt％(Mg 0.5 Zn 0.5 ) 4 (Ta 0.5 Nb 0.5 ) 2 O 9 The light yield of (2) is 2297ph/MeV.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. The borate scintillation microcrystalline glass is characterized in that the chemical composition expression of the borate scintillation microcrystalline glass is Li 2 B 4 O 7 -(Mg 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 Wherein x is more than or equal to 0 and less than or equal to 0.5,0 and less than or equal to 0.5 2 B 4 O 7 As a matrix, (Mg) 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 Is a microcrystalline phase.
2. The borate scintillating microcrystalline glass of claim 1, wherein the light yield of the borate scintillating microcrystalline glass is 948-3606 ph/MeV.
3. The borate scintillating microcrystalline glass of claim 1, wherein the microcrystalline phase (Mg) is 1-x Zn x ) 4 (Ta 1-y Nb y ) 2 O 9 The doping proportion of (A) is 1-20 wt%.
4. The method for preparing the borate scintillating microcrystalline glass according to any one of claims 1 to 3, which is characterized by comprising the following steps: weighing raw material Li according to stoichiometric ratio 2 B 4 O 7 、MgO、ZnO、Ta 2 O 5 、Nb 2 O 5 Fully grinding the raw materials in an agate mortar, pouring the ground raw materials into a corundum crucible, then putting the corundum crucible into a muffle furnace for melting treatment to obtain uniform glass liquid, then carrying out rapid cooling treatment on the glass liquid to obtain a target scintillation glass-ceramic primary product, and processing the obtained scintillation glass-ceramic primary product after cutting, surface grinding and polishing to obtain the borate scintillation glass-ceramic.
5. The method for preparing borate scintillating microcrystalline glass according to claim 4, wherein the milling time is 60min.
6. The method for preparing borate scintillating microcrystalline glass according to claim 4, wherein the melting treatment temperature is 1000-1100 ℃ and the time is 4-12 h.
7. Use of the borate scintillating microcrystalline glass of any of claims 1 to 3 for detection, screening and quantitative analysis of ionizing radiation and high-energy particles.
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