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Trivalent bismuth ion enhanced manganese-doped SrZn2S2O oxysulfide scintillator and preparation method thereof
The invention discloses a trivalent bismuth ion enhanced manganese-doped SrZn2S2O oxysulfide scintillator and a preparation method thereof. The chemical composition of the material is Sr1-x Zn 1.995 Mn 0.005 Bi x S2O, wherein x is more than or equal to 0.005 and less than or equal to 0.08. The preparation method comprises the following steps that: SrCO3, ZnS, MnCO3 and Bi2O3 are mixed in absolute ethyl alcohol, ball milling is carried out, and vacuum drying is carried out to obtain mixed powder; the obtained mixed powder is sintered under the argon atmosphere, the sintering temperature ranges from 900 DEG C to 1050 DEG C, and the sintering time ranges from 3 hours to 6 hours; and after the reaction is finished, a product is naturally cooled to room temperature, and is ground into fine powder again. The SrZn2S2O: Mn < 2 + >, Bi < 3 + > scintillator prepared by the method has relatively strong X-ray absorption capacity, is low in cost, easy to synthesize and environment-friendly, and has high stability under continuous irradiation of X-rays, so that the SrZn2S2O: Mn < 2 + >, Bi < 3 + > scintillator can be applied to the fields of X-ray imaging, high-energy radiation detection and the like.
本发明公开了一种三价铋离子增强的锰掺杂SrZn2S2O硫氧化物闪烁体及其制备方法，该材料的化学组成为Sr1‑xZn1.995Mn0.005BixS2O，其中0.005≤x≤0.08。其步骤为：将SrCO3、ZnS、MnCO3与Bi2O3在无水乙醇中混合、球磨，真空干燥得到混合粉体；将所得混合粉体在氩气气氛下进行烧结，烧结温度为900~1050℃，烧结时间为3~6小时；待反应结束后自然冷却至室温，再次研磨成细粉。本发明制备的SrZn2S2O:Mn2+,Bi3+闪烁体具有较强的X射线吸收能力，成本低廉，易于合成且环境友好，在X射线连续照射下具有高稳定性，故可应用于X射线成像、高能辐射探测等领域。
Trivalent bismuth ion enhanced manganese-doped SrZn2S2O oxysulfide scintillator and preparation method thereof
The invention discloses a trivalent bismuth ion enhanced manganese-doped SrZn2S2O oxysulfide scintillator and a preparation method thereof. The chemical composition of the material is Sr1-x Zn 1.995 Mn 0.005 Bi x S2O, wherein x is more than or equal to 0.005 and less than or equal to 0.08. The preparation method comprises the following steps that: SrCO3, ZnS, MnCO3 and Bi2O3 are mixed in absolute ethyl alcohol, ball milling is carried out, and vacuum drying is carried out to obtain mixed powder; the obtained mixed powder is sintered under the argon atmosphere, the sintering temperature ranges from 900 DEG C to 1050 DEG C, and the sintering time ranges from 3 hours to 6 hours; and after the reaction is finished, a product is naturally cooled to room temperature, and is ground into fine powder again. The SrZn2S2O: Mn < 2 + >, Bi < 3 + > scintillator prepared by the method has relatively strong X-ray absorption capacity, is low in cost, easy to synthesize and environment-friendly, and has high stability under continuous irradiation of X-rays, so that the SrZn2S2O: Mn < 2 + >, Bi < 3 + > scintillator can be applied to the fields of X-ray imaging, high-energy radiation detection and the like.
本发明公开了一种三价铋离子增强的锰掺杂SrZn2S2O硫氧化物闪烁体及其制备方法，该材料的化学组成为Sr1‑xZn1.995Mn0.005BixS2O，其中0.005≤x≤0.08。其步骤为：将SrCO3、ZnS、MnCO3与Bi2O3在无水乙醇中混合、球磨，真空干燥得到混合粉体；将所得混合粉体在氩气气氛下进行烧结，烧结温度为900~1050℃，烧结时间为3~6小时；待反应结束后自然冷却至室温，再次研磨成细粉。本发明制备的SrZn2S2O:Mn2+,Bi3+闪烁体具有较强的X射线吸收能力，成本低廉，易于合成且环境友好，在X射线连续照射下具有高稳定性，故可应用于X射线成像、高能辐射探测等领域。
Trivalent bismuth ion enhanced manganese-doped SrZn2S2O oxysulfide scintillator and preparation method thereof
三价铋离子增强的锰掺杂SrZn2S2O硫氧化物闪烁体及其制备方法
LI XIAOMING (Autor:in) / ZHANG XUEJIA (Autor:in)
29.10.2021
Patent
Elektronische Ressource
Chinesisch
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