A plastic scintillator film for an electron beam-excitation assisted optical microscope
A plastic scintillator film for an electron beam-excitation assisted optical microscope
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DOI：
10.1007/s10043-015-0043-3
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发表时间：
2015-03
期刊：
影响因子：
1.2
通讯作者：
W. Inami;M. Fukuta;Y. Masuda;Y. Nawa;A. Ono;Sheng Lin;Y. Kawata;S. Terakawa
中科院分区：
文献类型：
--
作者：
W. Inami;M. Fukuta;Y. Masuda;Y. Nawa;A. Ono;Sheng Lin;Y. Kawata;S. Terakawa
介绍了一种用于电子束激发辅助（EXA）光学显微镜的塑料闪烁体薄膜。薄膜对入射电子束进行弱散射，并在光束光斑的激发下产生高强度的纳米级发光。为了获得高空间分辨率和信噪比，EXA显微镜需要一层薄而高效的闪烁体膜。采用自旋镀膜技术在氮化硅表面制备了厚度为60 ~ 2800 nm的均匀塑料闪烁体。研究了薄膜厚度和入射电子束加速电压对发射强度的影响。可以通过改变薄膜基质中的闪烁体材料来调节发射波长。为了证明塑料闪烁膜的性能与EXA显微镜，延时图像酵母细胞获得。
A plastic scintillator film for use in an electron beam excitation-assisted (EXA) optical microscope is characterized. The thin film scatters an incident electron beam weakly and generates high intensity nanoscale luminescence excited by the beam spot. For high spatial resolution and signal to noise, an EXA microscope requires a thin high-efficiency scintillator film. Homogeneous plastic scintillators with thicknesses ranging from 60 to 2800 nm were fabricated on silicon nitride via spin coating. The emission intensity was examined as a function of film thickness and the accelerating voltage of the incident electron beam. The emission wavelength can be tuned by changing scintillator materials in the film matrix. To demonstrate a plastic scintillator film performance with an EXA microscope, time-lapse images of yeast cells were acquired.