CN101597798A - Codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof - Google Patents

Codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof Download PDF

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CN101597798A
CN101597798A CNA2009100542146A CN200910054214A CN101597798A CN 101597798 A CN101597798 A CN 101597798A CN A2009100542146 A CNA2009100542146 A CN A2009100542146A CN 200910054214 A CN200910054214 A CN 200910054214A CN 101597798 A CN101597798 A CN 101597798A
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CN101597798B (en
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潘尚可
杨帆
任国浩
丁栋舟
陆晟
张卫东
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Shanghai Institute of Ceramics of CAS
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Abstract

The invention belongs to the scintillator crystal materials field, be specifically related to a kind of codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof, the chemical formula of this codoping modified lithium gadolinium borate scintillation crystal is: Li 6Ce xN yGd 1-x-yB 3O 9-δ/2M δ, wherein, M is selected from one or both in the following element: F, Cl, Br and I; N is selected from one or both in the following element: Sc, Y, La and Lu; At least a form with particular isotope in described Li element, Gd element and the B element exists; Wherein 0＜x≤0.2,0≤y＜1,0≤δ≤0.1, and y and δ are not 0 simultaneously, and its preparation method is: raw material is prepared into monocrystalline form by Czochralski grown through mixing, solid phase synthesis, change material in monocrystal growing furnace.Codoping modified lithium gadolinium borate scintillation crystal of the present invention is with Ce 3+Ion is a luminescence center, and lithium, gadolinium and boron are to exist with the isotopic form a kind of or its combination of lithium-6, gadolinium-155, gadolinium-157 or boron-10, plays and be detected the effect that neutron produces nuclear reaction.

Description

Codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof
Technical field
The invention belongs to the scintillator crystal materials field, be specifically related to a kind of codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof.
Background technology
Scintillation crystal as a kind of by high energy particle or rays excite and luminous functional materials, its scintillation properties is very responsive to the crystalline microdefect, can change the crystalline defect state by mixing and improve the crystalline scintillation properties, thereby form new functional crystal material.Mix cerium lithium gadolinium borate crystal (Li 6Ce xGd 1-xB 3O 9) lithium-6 by enrichment in the crystal or boron-10 or gadolinium-155 or gadolinium-157 isotropic substance and neutron react detected neutron, at first the J.B.Czirr by the U.S. reported its potential use as the neutron detection scintillation crystal in 1996.As a kind of novel neutron detection scintillation crystal, Li 6Ce xGd 1-xB 3O 9Have the following advantages:
(1) contains three kinds of isotopic elements that neutron had big capture cross-section of Li, B and Gd simultaneously, can select different isotopic enrichment combinations according to different detection demands, optimization design goes out the crystal composition of higher detection efficiency, so this crystal has very strong adaptability.
(2) luminescence center is Ce 3+Ion, having fall time short (28ns), light output, high (each neutron excites and produces 40000 photoelectrons, every MeV gamma-rays excites and produces 25000 photoelectrons) and emission wavelength (centre wavelength is 395nm) and characteristics such as photomultiplier (PMT) coupling is good, thereby its detection efficiency height, be 66 times and 9 times of BC-454 of Li glass.
(3) effective atomic number low (46.3) is eliminated the gamma-rays background easily.
(4) specific refractory power low (1.67@405nm) is easy to polymkeric substance compoundly, is very suitable for big area neutron detection and imaging.
(5) both can utilize this crystalline bulk-shaped monocrystal to make the neutron detector of small area, and also can utilize the specific particulate powder of this crystalline to produce the big area neutron detector.
Yet, Li 6Ce xGd 1-xB 3O 9Also there is following shortcoming in crystal simultaneously as a kind of novel neutron detection scintillation crystal:
(1) Ce:Li 6Gd (BO 3) 3Crystal is a kind of cerium-ion activated scintillation crystal, Ce 3+The valence distribution of ion in crystal is extremely important to the crystalline scintillation properties.Under study for action, all use CeO usually 2As the active ions doping agent, and the quadrivalent cerium ion is not luminous, have only the quadrivalent cerium ion to be converted into trivalent cerium ion, this crystal could be luminous, but the Ce ion is synthetic at raw material, melt forms and crystal growing process in variation of valence very complicated, it is particularly important to allow more quadrivalent cerium ion be converted into trivalent cerium ion.The general variation of valence of all controlling cerium ion by control growing atmosphere, but its mechanism and effect are difficult to be controlled effectively.This also is nearly all doped Ce 3+The problem that the ionic scintillation crystal all exists makes this crystalloid very poor with the crystallo-luminescence homogeneity of different heat growths at different sites.
(2) Li 6Ce xGd 1-xB 3O 9Crystal is a kind of borate crystal, the crystal poor thermal conductivity, and contain a large amount of borate groups in its melt, easily form network-like structure, thereby cause melt viscosity big, the speed of growth is slow, the latent heat that discharges in the crystal growing process is big to the crystal growth influence, makes that this crystal growth is wayward.In addition, this crystal also exists (010), (121) and a plurality of cleavage surfaces such as (012), makes that crystal is easy to crack, is difficult to process the shortcomings such as wafer of diameter greater than 30mm, has limited this crystalline research and range of application.
(3) Li 6Ce xGd 1-xB 3O 9Contain a large amount of in the crystal 155Gd and 157The Gd isotropic substance, the cross section of itself and neutron reaction is far longer than 6Li and 10The B isotropic substance, can influence neutron and 6Li or 10The isotopic reaction of B, thus this crystal utilization reduced 6Li or 10The B coordination usually carry out neutron detection efficient.
In sum, how to introduce that the quadrivalent cerium ion is converted into trivalent cerium ion, how reduce the viscosity of melt, improve the crystalline speed of growth, and how to improve this crystal utilization by the codoped of various ingredients 6Li or 10The B coordination usually carry out neutron detection efficient become the present problem demanding prompt solution of those skilled in the art.
Summary of the invention
The objective of the invention is to overcome defective of the prior art, a kind of codoping modified lithium gadolinium borate scintillation crystal and preparation method thereof is provided.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of codoping modified lithium gadolinium borate scintillation crystal is characterized in that, this crystalline chemical formula is: Li 6Ce xN yGd 1-x-yB 3O 9-δ/2M δ, wherein, M is selected from one or both in the following element: F, Cl, Br and I; N is selected from one or both in the following element: Sc, Y, La and Lu; At least a form with particular isotope in described Li element, Gd element and the B element exists; Wherein 0＜x≤0.2,0≤y＜1,0≤δ≤0.1, and y and δ are not 0 simultaneously.
Described particular isotope is selected from Li-6, Gd-155, Gd-157 or B-10.Lithium, gadolinium and boron exist with which kind of isotropic substance or its array configuration, depend on the Application Areas of the neutron detector made from this crystal.
Preferably, the chemical formula of described codoping modified lithium gadolinium borate scintillation crystal is Li 6Ce xGd 1-xB 3O 9-δ/2M δ, 0＜x≤0.2,0＜δ≤0.1 wherein, M is selected from one or both of following element: F, Cl, Br and I, at least a form with particular isotope in Li element, Gd element and the B element exists; Or the chemical formula of this codoping modified lithium gadolinium borate scintillation crystal is Li 6Ce xN yGd 1-x-yB 3O 9, 0＜x≤0.2,0＜y＜1 wherein, N is selected from one or both of following element: Sc, Y, La and Lu, at least a form with particular isotope in Li element, Gd element and the B element exists; Or the chemical formula of this codoping modified lithium gadolinium borate scintillation crystal is Li 6Ce xN yGd 1-x-yB 3O 9-δ/2M δ, 0＜x≤0.2,0＜y＜1 wherein, 0＜δ≤0.1, M is selected from one or both of following element: F, Cl, Br and I, N is selected from one or both of following element: Sc, Y, La and Lu, at least a form with particular isotope in Li element, Gd element and the B element exists.
Described particular isotope is selected from Li-6, Gd-155, Gd-157 or B-10.
The preparation method of codoping modified lithium gadolinium borate scintillation crystal of the present invention comprises the steps:
1) joining of crystal growth raw material gets: be mixed into admixtion behind the various raw materials of weighing in proportion;
2) the crystal growth raw material is synthetic: sintering made the crystal growth raw material after admixtion was pressed into the material piece;
3) single crystal preparation: the crystal growth raw material is heated to abundant fusing, obtains the crystal growth melt, adopt crystal pulling method to carry out crystal growth.
Raw material in the described step 1) comprises: contain Li element raw material, contain B element raw material, contain Gd element raw material, contain Ce element raw material and contain N element raw material.
Preferably, the described Li of containing element raw material is selected from Li 2CO 3, among LiOH and the LiM one or more; Contain B element raw material and be selected from H 3BO 3And B 2O 3In one or more; Contain Gd element raw material and be selected from Gd 2O 3And GdM 3In one or more; Contain Ce element raw material and be selected from CeM 3And CeO 2In one or more; Contain N element raw material and be selected from NM 3And N 2O 3In one or more.
Preferably, in the described step 1), contain the weight of B element raw material excessive 1～5% (that is: contain the weight that contains B element raw material excessive 1～5% that the weight ratio of B element raw material is calculated according to the stoichiometric ratio of B element in the molecular formula).
Preferably, described step 2) synthesis step of crystal growth raw material is in: admixtion is pressed into sintering behind the material piece, cooling and grind after be pressed into material piece sintering once more, cooling.
Preferably, described step 2) the material piece in is that diameter is 40～60mm, highly is the cylindrical block of 10～20mm.
Preferably, in the described step 3), when adopting crystal pulling method to carry out crystal growth, crystal growth temperature is 800～865 ℃, and rotating speed is 1～10rpm during crystal growth, and pulling rate is 0.1～2mm/h, and preferred rate of temperature fall is: 0.4～0.8 ℃/h.
Preferably, in the described step 3), when adopting crystal pulling method to carry out crystal growth, crystal growth atmosphere is air, nitrogen, argon gas, contain the nitrogen of oxygen 1～10at.% or contain the argon gas of oxygen 1～10at.%.
Preferably, in the described step 3), when adopting crystal pulling method to carry out crystal growth, as crystal growth seed crystal, and described lithium gadolinium borate seed crystal direction can be any with platinum wire or lithium gadolinium borate single crystal seed.
The present invention adopts crystal pulling method to prepare a kind of codoping modified lithium gadolinium borate scintillation crystal that is specifically designed to neutron detection, in the scintillation crystal of the present invention with CeF 3Replaced C eO 2Be used as the active ions doping agent, therefore improved the concentration of trivalent cerium ion; By introducing the viscosity that halide-ions reduces melt, improve the crystalline speed of growth simultaneously; Perhaps use La 3+, Y 3+, Sc 3+Or Lu 3+Ion is partly replaced Gd 3+Ion has reduced 155Gd and 157The Gd isotropic substance is right 6Li or 10The isotopic interference of B.Make this crystalline luminescence mechanism with to mix cerium lithium gadolinium borate monocrystalline identical by above-mentioned several doping, but luminous intensity strengthen to some extent.Codoping modified lithium gadolinium borate scintillation crystal of the present invention is with Ce 3+Ion is a luminescence center, and lithium, gadolinium and boron are to exist with the isotopic form a kind of or its combination of lithium-6, gadolinium-155, gadolinium-157 or boron-10, plays and be detected the effect that neutron produces nuclear reaction, can realize the through engineering approaches application.
Description of drawings
Fig. 1 Li 6Ce xGd 1-xB 3O 9And Li 6Ce 0.005Gd 0.995B 3O 9-δF δCrystalline sees through spectrum.
Fig. 2 Li 6Ce xGd 1-xB 3O 9And Li 6Ce 0.005Gd 0.995B 3O 9-δF δCrystalline x rays excite spectrum.
Fig. 3 Li 6Ce xGd 1-xB 3O 9And Li 6Ce 0.005Gd 0.995B 3O 9-δF δCrystalline burst of ultraviolel spectrum.
Embodiment
Further describe Ytterbium-doped lithium gadolinium borate laser crystal of the present invention and preparation method thereof below by specific embodiment.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.
Embodiment 1
With CeF 3Replace CeO 2Be doping agent, according to consisting of 6Li 6Ce 0.005Gd 0.995B 3O 8.9925F 0.015, weighing 6Li 2CO 3(99.99%) 270.00g, Gd 2O 3(99.99%) 225.43g, H 3BO 3(99.99%) 238.83g and CeF 3(99.99%) 1.23g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 60mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, rotating speed is 3rpm, pulling rate is 0.5mm/h, and through 4 days growth, can grow diameter was 20mm, length is the monocrystalline about 50mm, its performance as shown in Fig. 1-3, by content among the figure as can be seen, the crystal of this new component, its luminescence mechanism is with to mix cerium lithium gadolinium borate monocrystalline identical, but luminous intensity strengthens to some extent.
Embodiment 2
With CeO 2Be doping agent, according to consisting of 6Li 6Ce 0.005Gd 0.895Y 0.1B 3O 9, weighing 6Li 2CO 3(99.99%) 270.00g, Gd 2O 3(99.99%) 202.77g, Y 2O 3(99.99%) 14.11g, H 3BO 3(99.99%) 238.83g and CeO 2(99.99%) 1.08g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 60mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 30mm, and length is the monocrystalline about 30mm.
Embodiment 3:
With CeO 2Be doping agent, according to consisting of 6Li 6Ce 0.005Gd 0.995B 3O 9-δ/2F δ, weighing 6Li 2CO 3(99.99%) 268.65g, Gd 2O 3(99.99%) 225.43g, H 3BO 3(99.99%) 238.83g and 6LiF (99.99%) 0.9375g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 60mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 25mm, and length is the monocrystalline about 35mm.
Embodiment 4:
With CeO 2Be doping agent, according to consisting of 6Li 6Ce 0.01 156Gd 0.99B 3O 9-δ/2F δ, weighing 6LiOH (99.99%) 390.00g, Gd 2O 3(99.99%) 460.75g, 156GdI 3(99.99%) 13.93g, B 2O 3(99.99%) 279.66g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 80mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 30mm, and length is the monocrystalline about 35mm.
Embodiment 5:
With CeO 2Be doping agent, according to consisting of 6Li 6Ce 0.01Sc 0.10Gd 0.89 10B 3O 9, weighing LiOH (99.99%) 390.00g, Gd 2O 3(99.99%) 419.41g, B 2O 3(99.99%) 559.33g, Sc 2O 3(99.99%) 17.93g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 80mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 35mm, and length is the monocrystalline about 30mm.
Embodiment 6:
With CeCl 3Be doping agent, according to consisting of Li 6Ce 0.005La 0.2 156Gd 0.795 10B 3O 9-δ/2Cl δ, weighing LiOH (99.99%) 373.59g, Gd 2O 3(99.99%) 374.64g, La 2O 3(99.99%) 84.71g, B 2O 3(99.99%) 559.33g, CeCl 3(99.99%) 3.20g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 80mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 30mm, and length is the monocrystalline about 32mm.
Embodiment 7:
With CeCl 3Be doping agent, according to consisting of Li 6Ce 0.2 156Gd 0.8 10B 3O 8.95Cl 0.1, weighing LiOH (99.99%) 373.68g, Gd 2O 3(99.99%) 376.48g, B 2O 3(99.99%) 286.1g, CeCl 3(99.99%) 21.32g, CeO 2(99.99%) 74.39g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 80mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 30mm, and length is the monocrystalline about 32mm.
Embodiment 8:
With CeCl 3Be doping agent, according to consisting of Li 6Ce 0.2(La 0.01Y 0.02) 156Gd 0.77 10B 3O 8.955(Cl 0.03Br 0.06), weighing LiOH (99.99%) 373.68g, Gd 2O 3(99.99%) 362g, B 2O 3(99.99%) 272.48g, CeO 2(99.99%) 89.27g, LaCl 3(99.99%) 6.37g, YBr 3(99.99%) 17.08g mixes, and being pressed into diameter is the cylindric bulk of 50mm, puts into the corundum cup, 450 ℃ of sintering temperatures 10 hours, takes out, and grinds again, is pressed into bulk again, inserts in the retort furnace, 700 ℃ of following sintering 10 hours.After the taking-up, putting into the platinum crucible that diameter is 80mm, is seed crystal to mix cerium lithium gadolinium borate monocrystalline, and rotating speed is 5rpm, and pulling rate is 0.5mm/h, and through 3 days growth, can grow diameter was 30mm, and length is the monocrystalline about 32mm.

Claims (10)

1, a kind of codoping modified lithium gadolinium borate scintillation crystal is characterized in that, this crystalline chemical formula is: Li 6Ce xN yGd 1-x-yB 3O 9-δ/2M δ, wherein, M is selected from one or both in the following element: F, Cl, Br and I; N is selected from one or both in the following element: Sc, Y, La and Lu; At least a form with particular isotope in described Li element, Gd element and the B element exists; Wherein 0＜x≤0.2,0≤y＜1,0≤δ≤0.1, and y and δ are not 0 simultaneously.
2, codoping modified lithium gadolinium borate scintillation crystal according to claim 1 is characterized in that described particular isotope is selected from Li-6, Gd-155, Gd-157 or B-10.
3, the preparation method of codoping modified lithium gadolinium borate scintillation crystal according to claim 1 comprises the steps:
1) joining of crystal growth raw material gets: be mixed into admixtion behind the various raw materials of weighing in proportion;
2) the crystal growth raw material is synthetic: sintering made the crystal growth raw material after admixtion was pressed into the material piece;
3) single crystal preparation: the crystal growth raw material is heated to abundant fusing, obtains the crystal growth melt, adopt crystal pulling method to carry out crystal growth.
4, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that the raw material in the described step 1) comprises: contain Li element raw material, contain B element raw material, contain Gd element raw material, contain Ce element raw material and contain N element raw material.
5, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that the described Li of containing element raw material is selected from Li 2CO 3, among LiOH and the LiM one or more; Contain B element raw material and be selected from H 3BO 3And B 2O 3In one or more; Contain Gd element raw material and be selected from Gd 2O 3And GdM 3In one or more; Contain Ce element raw material and be selected from CeM 3And CeO 2In one or more; Contain N element raw material and be selected from NM 3And N 2O 3In one or more.
6, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 4, it is characterized in that, in the described step 1), contain the weight excessive 1～5% of B element raw material.
7, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that, described step 2) synthesis step of crystal growth raw material is in: admixtion is pressed into sintering behind the material piece, cooling and grind after be pressed into material piece sintering once more, cooling.
8, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that, in the described step 3), when adopting crystal pulling method to carry out crystal growth, crystal growth temperature is 800～865 ℃, rotating speed is 1～10rpm during crystal growth, and pulling rate is 0.1～2mm/h, and rate of temperature fall is 0.4～0.8 ℃/h.
9, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that, in the described step 3), when adopting crystal pulling method to carry out crystal growth, crystal growth atmosphere is air, nitrogen, argon gas, contain the nitrogen of oxygen 1～10at.% or contain the argon gas of oxygen 1～10at.%.
Nitrogen or contain the argon gas of oxygen 1～10at.%.
10, as the preparation method of codoping modified lithium gadolinium borate scintillation crystal as described in the claim 3, it is characterized in that, in the described step 3), when adopting crystal pulling method to carry out crystal growth, with platinum wire or lithium gadolinium borate single crystal seed as crystal growth seed crystal.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104372410A (en) * 2014-11-17 2015-02-25 中国科学院上海硅酸盐研究所 Cerium-doped rare earth borate scintillation crystal and preparation method thereof
CN108560053A (en) * 2018-04-24 2018-09-21 安徽晶宸科技有限公司 The yttrium luetcium silicate scintillation material and its growing method that a kind of lanthanum, dysprosium, cerium are co-doped with
CN113930842A (en) * 2021-10-14 2022-01-14 上海应用技术大学 Preparation method of cerium-doped lithium lutetium borate crystal
CN114775053A (en) * 2022-03-28 2022-07-22 山东大学 Cerium-lithium double-doped cesium chloride zirconium scintillation crystal, preparation method thereof and application thereof in neutron/gamma ray double detection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104372410A (en) * 2014-11-17 2015-02-25 中国科学院上海硅酸盐研究所 Cerium-doped rare earth borate scintillation crystal and preparation method thereof
CN108560053A (en) * 2018-04-24 2018-09-21 安徽晶宸科技有限公司 The yttrium luetcium silicate scintillation material and its growing method that a kind of lanthanum, dysprosium, cerium are co-doped with
CN113930842A (en) * 2021-10-14 2022-01-14 上海应用技术大学 Preparation method of cerium-doped lithium lutetium borate crystal
CN114775053A (en) * 2022-03-28 2022-07-22 山东大学 Cerium-lithium double-doped cesium chloride zirconium scintillation crystal, preparation method thereof and application thereof in neutron/gamma ray double detection
CN114775053B (en) * 2022-03-28 2023-12-26 山东大学 Cerium-lithium double-doped cesium-zirconium chloride scintillation crystal, preparation thereof and application thereof in neutron/gamma ray double-detection

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