Development of CuI:Cl-PS composite scintillator
Development of CuI:Cl-PS composite scintillator
复制标题
CuI:Cl-PS复合闪烁体的研制
DOI：
10.1016/j.jlumin.2021.118449
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发表时间：
2021
影响因子：
3.6
通讯作者：
Yang Heng
中科院分区：
文献类型：
--
作者：
Hao Shutong;Liu Xiaolin;Gu Mu;Li Qianli;Huang Meng;Yang Heng
将Cl掺杂的CuI荧光粉与聚苯乙烯（PS）复合，成功制备了一种用于超快X射线探测的复合闪烁体（CuI：Cl-PS），并对其晶体结构和发光特性进行了研究。CuI：Cl-PS复合闪烁体在紫外光或X射线激发下仅表现出强烈的近带边（NBE）发光，其衰减时间为亚纳秒，而CuI的慢发光被完全抑制。此外，超快NEB发射的复合闪烁体的强度基本上没有恶化后，在空气中在室温下储存6个月。预期CuI：Cl-PS复合闪烁体在超快硬X射线探测或成像方面具有巨大的应用潜力。
A promising composite scintillator for used in ultrafast X-ray detection was successfully developed by compounding Cl-doped CuI phosphor with polystyrene (PS) (CuI:Cl-PS), and its crystal structure and luminescence characteristics were investigated in detail. The CuI:Cl-PS composite scintillator only exhibited an intense near-band-edge (NBE) luminescence with a decay time of sub-nanosecond, and the slow luminescence of CuI was entirely suppressed under the excitation of ultraviolet light or X-ray. Furthermore, the intensity of the ultrafast NEB emission for the composite scintillator was not basically deteriorated after storage in air at room temperature for six months. It is expected that the CuI:Cl-PS composite scintillator demonstrates a great potential application in ultrafast hard X-ray detection or imaging.