Bismuth-loaded plastic scintillators for gamma-ray spectroscopy
Bismuth-loaded plastic scintillators for gamma-ray spectroscopy
复制标题
用于伽马射线光谱的载铋塑料闪烁体
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Payne
中科院分区：
文献类型：
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作者：
B. L. Rupert;N. Cherepy;B. Sturm;R. Sanner;S. Payne
具有高负载量的铋有机金属的聚乙烯基咔唑聚合物光催化剂表现出良好的光产率，并且被发现能够进行伽马射线光谱分析。当激活的标准氟，二苯基蒽，铋负载的聚合物产生12000光子/MeV，表现出在420 nm处的发射最大值，15 ns的衰减，和能量分辨率为9%，在662 keV的测量。掺铱络合物荧光剂的铋聚合物的最大发射波长为500 nm，衰减时间为1.2 μs，光产额为30000光子/MeV，能量分辨率在662 keV时优于7%FWHM。
Polyvinylcarbazole polymer scintillators with high loading of a bismuth organometallic exhibit good light yields, and are found to be capable of gamma-ray spectroscopy. When activated by a standard fluor, diphenylanthracene, a bismuth-loaded polymer produces ∼12000 photons/MeV, exhibits an emission maximum at 420 nm, a ∼15 ns decay, and energy resolution of 9% at 662 keV is measured. The same bismuth-loaded polymer doped with an iridium complex fluor has an emission maximum of 500 nm, a decay time of 1.2 μs, a light yield of ∼30000 photons/MeV, and energy resolution better than 7% FWHM at 662 keV.