Using monochromatic light to measure attenuation length of liquid scintillator solvent LAB

2019 ◽  
Vol 30 (2) ◽  
Author(s):  
Rui Zhang ◽  
De-Wen Cao ◽  
Chang-Wei Loh ◽  
You-Hang Liu ◽  
Fang-Liang Wu ◽  
...  
2013 ◽  
Vol 37 (7) ◽  
pp. 076001 ◽  
Author(s):  
Long Gao ◽  
Bo-Xiang Yu ◽  
Ya-Yun Ding ◽  
Li Zhou ◽  
Liang-Jian Wen ◽  
...  

2020 ◽  
Vol 4 (3) ◽  
pp. 312-318
Author(s):  
Xiang-Wei Yin ◽  
Tao Hu ◽  
Bo-Xiang Yu ◽  
Wei Hu ◽  
Wen-Qi Yan ◽  
...  

2017 ◽  
Vol 67 (7) ◽  
pp. 842-845
Author(s):  
Young Seo PARK ◽  
Seung Chan KIM ◽  
Kyung Kwang JOO*

Author(s):  
J. H. Butler ◽  
C. J. Humphreys

Electromagnetic radiation is emitted when fast (relativistic) electrons pass through crystal targets which are oriented in a preferential (channelling) direction with respect to the incident beam. In the classical sense, the electrons perform sinusoidal oscillations as they propagate through the crystal (as illustrated in Fig. 1 for the case of planar channelling). When viewed in the electron rest frame, this motion, a result of successive Bragg reflections, gives rise to familiar dipole emission. In the laboratory frame, the radiation is seen to be of a higher energy (because of the Doppler shift) and is also compressed into a narrower cone of emission (due to the relativistic “searchlight” effect). The energy and yield of this monochromatic light is a continuously increasing function of the incident beam energy and, for beam energies of 1 MeV and higher, it occurs in the x-ray and γ-ray regions of the spectrum. Consequently, much interest has been expressed in regard to the use of this phenomenon as the basis for fabricating a coherent, tunable radiation source.


Author(s):  
Zhiheng Xu ◽  
Zhengrong Zhang ◽  
Kelum A. A. Gamage ◽  
Yunpeng Liu ◽  
Huangfeng Ye ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xuehua Wang ◽  
Xianghu Wang ◽  
Jianfeng Huang ◽  
Shaoxiang Li ◽  
Alan Meng ◽  
...  

AbstractConstruction of Z-scheme heterostructure is of great significance for realizing efficient photocatalytic water splitting. However, the conscious modulation of Z-scheme charge transfer is still a great challenge. Herein, interfacial Mo-S bond and internal electric field modulated Z-scheme heterostructure composed by sulfur vacancies-rich ZnIn2S4 and MoSe2 was rationally fabricated for efficient photocatalytic hydrogen evolution. Systematic investigations reveal that Mo-S bond and internal electric field induce the Z-scheme charge transfer mechanism as confirmed by the surface photovoltage spectra, DMPO spin-trapping electron paramagnetic resonance spectra and density functional theory calculations. Under the intense synergy among the Mo-S bond, internal electric field and S-vacancies, the optimized photocatalyst exhibits high hydrogen evolution rate of 63.21 mmol∙g−1·h−1 with an apparent quantum yield of 76.48% at 420 nm monochromatic light, which is about 18.8-fold of the pristine ZIS. This work affords a useful inspiration on consciously modulating Z-scheme charge transfer by atomic-level interface control and internal electric field to signally promote the photocatalytic performance.


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