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作者:Sai Bharadwaj Vishnubhotla , Rimei Chen , Subarna R Khanal ...
来源:[J].Nanotechnology(IF 3.842), 2019, Vol.30 (4)IOP
摘要:Conductive modes of atomic force microscopy are widely used to characterize the electronic properties of materials, and in such measurements, contact size is typically determined from current flow. Conversely, in nanodevice applications, the current flow is predicted from the est...
作者:Wei WANG , Lanxiang SUN , Peng ZHANG ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:This paper presents a method for the automatic adjustment of the laser defocusing amount in micro-laser-induced breakdown spectroscopy. A microscopic optical imaging system consisting of a CCD camera and a 20× objective lens was adopted to realize the method. The real-time a...
作者:Xiaoyong HE , Runhua LI , Fujuan WANG
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:High repetition rate laser-ablation spark-induced breakdown spectroscopy (HRR LA-SIBS) was first used to analyze trace elements in copper alloy samples. The 1064 nm output of an acousto-optically Q-switched Nd:YAG laser operated at a pulse repetition rate of 1 kHz was utilized to...
作者:Junwei JIA , Hongbo FU , Zongyu HOU ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:Laser-induced breakdown spectroscopy (LIBS) is a qualitative and quantitative analytical technique with great potential in the cement industrial analysis. Calibration curve (CC) and support vector regression (SVR) methods coupled with LIBS technology were applied for the quantifi...
作者:Hongbo FU , Zhibo NI , Huadong WANG ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:Calibration-free laser-induced breakdown spectroscopy can overcome the matrix effect and the huge application prospects of in situ and on-line measurement, so it has been studied and applied to many analytical samples by numerous researchers since it was first proposed in 1999. H...
作者:Li FANG , Nanjing ZHAO , Mingjun MA ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:The use of laser-induced breakdown spectroscopy (LIBS) for the analysis of heavy metals in water samples is investigated. Some factors such as splashing, surface ripples, extinction of emitted intensity, and a shorter plasma lifetime will influence the results if the water s...
作者:M Leier , M Kiisk , S Suursoo ...
来源:[J].Journal of Radiological Protection(IF 1.386), 2019, Vol.39 (1)IOP
摘要:In northern Estonia, higher levels of Ra-226 and Ra-228 concentrations give rise to problems with water treatment plants (WTPs) using Cambrian-Vendian (Cm-V) aquifer. During water treatment processes, radionuclides accumulate in the filter material to a level where the mater...
作者:Dan ZHANG , Anmin CHEN , Qiuyun WANG ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:We investigated the dependence of laser-induced breakdown spectral intensity on the focusing position of a lens at different sample temperatures (room temperature to 300 °C) in atmosphere. A Q-switched Nd:YAG nanosecond pulsed laser with 1064 nm wavelength and 10 ns pulse wi...
作者:Tuan Quoc Tran , Sanggeol Jeong , Khang Nhat Hoang Nguyen ...
来源:[J].Journal of Radiological Protection(IF 1.386), 2019, Vol.39 (1)IOP
摘要:In this paper, the uncertainty of the Monte Carlo code MCNP6 for the sodium-cooled fast reactor (SFR) shielding design is studied. Shielding analysis, which ensures the radiation safety of the core design, is challenging for the Monte Carlo modeling because it is associated with ...
作者:Sungho SHIN , Youngmin MOON , Jaepil LEE ...
来源:[J].Plasma Science and Technology(IF 0.514), 2019, Vol.21 (3)IOP
摘要:Laser-induced breakdown spectroscopy (LIBS) is regarded as a promising technique for real-time sorting of scrap metals due to its capability of fast multi-elemental and in-air analysis. This work reports a method for signal processing which ensures high accuracy and high speed du...

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