Design and elaboration of highly resolved and efficient Cu plus -doped oxyfluoride glass scintillators for X-ray image based on response surface methodology
Design and elaboration of highly resolved and efficient Cu plus -doped oxyfluoride glass scintillators for X-ray image based on response surface methodology
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DOI：
10.1016/j.jlumin.2023.120086
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发表时间：
2023-07-26
影响因子：
3.6
通讯作者：
Guo，Hai
中科院分区：
文献类型：
--
作者：
Wen，ZhuoXing;Xu，ShuJun;Guo，Hai
块体玻璃作为一种低成本、低加工成本、高透明度、高均匀性的新型X射线成像材料，在X射线成像领域得到了广泛的关注。以Al粉为还原剂，设计并制备了掺Cu+氟氧化物玻璃微晶玻璃.采用响应面法研究了Cu+掺杂玻璃的X射线激发发光（XEL）与Cu+掺杂浓度和Al含量的关系，得到了最佳的玻璃。优化后的闪烁体玻璃在可见光区具有高透过率（90.0%）、短寿命（42.9 μs）、高吸收效率（93.0%）和良好的内量子产率（75.2%）。最佳样品的XEL积分强度为Bi_4Ge_3O_（12）晶体的141%。其空间分辨率达到20 lp/mm。上述结果说明了Cu ~+掺杂氟氧化物玻璃在X射线成像领域的潜在应用。
Bulk glass scintillators, which process the advantages of low cost, cheap elaboration, excellent transparency and high uniformly, have garnered great attention for X-ray imaging application. Cu+-doped oxyfluoride glass scintillators were designed and elaborated by using Al powder as reducing agent. The relationship of X-ray excited luminescence (XEL) of Cu+-doped glasses with doping concentration of Cu+and the addition of Al content were investigated by the response surface methodology to get the optimal glass. The optimal glass scintillator shows high transmittance (90.0% at visible region), short lifetime (42.9 μs), high absorption efficiency (93.0% at 290 nm) and good internal quantum yield (75.2%). Excitedly, the integrated XEL intensity of optimal sample is 141% of that of Bi4Ge3O12crystal. And its spatial resolution reaches 20 lp/mm for X-ray imaging. Above results illustrate the potential application of Cu+-doped oxyfluoride glass scintillators in X-ray imaging filed.