A Structured Target Geometry for Highly Efficient X-ray Lasers

2002 ◽  
Author(s):  
Tianqing Jia
Keyword(s):  
X Ray ◽  
2007 ◽  
Vol 32 (5) ◽  
pp. 491 ◽  
Author(s):  
J. Zhao ◽  
Q. L. Dong ◽  
J. Zhang

2017 ◽  
Vol 8 (1) ◽  
pp. 41 ◽  
Author(s):  
WeiPing Chen ◽  
JiangKun Cao ◽  
FangFang Hu ◽  
RongFei Wei ◽  
LiPing Chen ◽  
...  

Author(s):  
Kyoung Hwan Lee ◽  
Seung Beom Park ◽  
Jong Ju Park ◽  
Deuk Su Kim ◽  
Ju Yun Park ◽  
...  

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Sangeun Cho ◽  
Sungwoo Kim ◽  
Jongmin Kim ◽  
Yongcheol Jo ◽  
Ilhwan Ryu ◽  
...  

Abstract Compared with solid scintillators, liquid scintillators have limited capability in dosimetry and radiography due to their relatively low light yields. Here, we report a new generation of highly efficient and low-cost liquid scintillators constructed by surface hybridisation of colloidal metal halide perovskite CsPbA3 (A: Cl, Br, I) nanocrystals (NCs) with organic molecules (2,5-diphenyloxazole). The hybrid liquid scintillators, compared to state-of-the-art CsI and Gd2O2S, demonstrate markedly highly competitive radioluminescence quantum yields under X-ray irradiation typically employed in diagnosis and treatment. Experimental and theoretical analyses suggest that the enhanced quantum yield is associated with X-ray photon-induced charge transfer from the organic molecules to the NCs. High-resolution X-ray imaging is demonstrated using a hybrid CsPbBr3 NC-based liquid scintillator. The novel X-ray scintillation mechanism in our hybrid scintillators could be extended to enhance the quantum yield of various types of scintillators, enabling low-dose radiation detection in various fields, including fundamental science and imaging.


2014 ◽  
Vol 61 (3) ◽  
pp. 1444-1450 ◽  
Author(s):  
Togo Kudo ◽  
Kazuo Kobayashi ◽  
Shun Ono ◽  
Takeo Watanabe ◽  
Hiroo Kinoshita ◽  
...  

2013 ◽  
Vol 864-867 ◽  
pp. 404-407
Author(s):  
Shi Zhao Kang ◽  
Tan Wu ◽  
Xiang Qing Li ◽  
Yi Lun Zhou ◽  
Jin Mu

Core-shell montmorillonite-TiO2 colloids were prepared in a hydrothermal process and characterized with transmission electron microscope, powder X-ray diffraction analysis, Brunauer-Emmett-Teller analysis and UV-vis spectra. Afterwards, their photocatalytic activity was investigated under UV irradiation using methyl orange as a model contaminant. In addition, the stability of the core-shell montmorillonite-TiO2 colloids was investigated by repeatedly performing methyl orange photocatalytic degradation experiments. The results indicate the as-prepared core-shell montmorillonite-TiO2 colloids are a highly efficient photocatalyst for the degradation of organic dyes in water. And this photocatalytic activity remains almost unchanged after eight successive cycles.


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