Zhijian Zheng

Shenzhen Institute of Information Technology

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Ding Yong-Kun

China Academy of Engineering Physics

Yang Jia-Min

Laser Fusion Research Center

Baohan Zhang

China Academy of Engineering Physics

Shuangchen Ruan

Shenzhen Technology University

Guangchang Wang

Wuxi No.2 People's Hospital

Yongkun Ding

Institute of Applied Physics and Computational Mathematics

SUN KE-XU

China Academy of Engineering Physics

TANG DAO-YUAN

Jiangnan University

Deqin Ouyang

Shenzhen Technology University

Tianxuan Huang

Laser Fusion Research Center

Cooperative Institutions

Chinese Academy of Sciences

180

China Academy of Engineering Physics

135

University of Chinese Academy of Sciences

Shanghai Jiao Tong University

Laser Fusion Research Center

University of Science and Technology of China

Robert Bosch (Germany)

Peking University

Zhejiang University

Institute of High Energy Physics

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Vitamin D Receptor Activation Targets ROS-Mediated Crosstalk Between Autophagy and Apoptosis in Hepatocytes in Cholestasic Mice

Cellular and Molecular Gastroenterology and Hepatology (2022)

Zhijian Zheng Jing Xie Liman Ma Zhiqing Hao Weiwei Zhang

10.1016/j.jcmgh.2022.10.011

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Citations (16)

A comparison of energy distribution of hot electrons from the front and the rear sides of targets during the interaction of femtosecond laser with foil targets

Acta Physica Sinica (2007)

Cai Da-Feng Gu Yu-Qiu Zhijian Zheng Zhou Weimin Jiao Chun-Ye

The energy distribution of hot electrons from the front and the rear sides of targets have been measured during the interaction of femtosecond laser with the foil target. The results show that the peaks of energy spectrum of hot electrons from the front and the rear sides of targets are located at 430 keV and 175 keV, respectively. Fitted with Maxwell distribution, the temperatures of hot electrons from the front of targets are 218 keV and 425 keV. Obviously, the energy spectrum of hot electrons from the rear of targets is “softened”, which is due to Debye sheath electric field and self-magnetic field produced by hot electrons transported in the target, and has temperatures of 96 keV and 347 keV, which are lower than those from the front of targets.

Hot electron

Energy spectrum

10.7498/aps.56.346

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Citations (2)

EMISSION AND REEMISSION PROPERTIES OF GOLD DOUBLE-DISK TARGETS HEATED BY LASER

Acta Physica Sinica (2001)

Jiang Shao-En Zhijian Zheng SUN KE-XU Tianxuan Huang Yang Jia-Min

A new kind of double-disk gold targets were irradiated by 0.35μm intense laser and-the properties of impvoved X-ray spectra were investigated at “Xingguang”laser facilities.-Collision velocities between the-primary and secondary disks' plasmas have been measured.This double-disk target's design has avoided the influence of the spraying plasma from primary disk to a certain extent, and increased the “clearance” for ablated secondary disk. Two soft X-ray spectrometers were used to measure X-ray radiation from the primary and secondary disks, respectively. An X-ray streaked camera was used to obtain time-spactial images emitted from laser-plasma of double-disks targets. Experimental results were-analyzed physically.

10.7498/aps.50.730

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Yield of hot electrons and conversion efficiency of laser energy in femtosecond laser-foil targets

High Power Laser and Particle Beams (2005)

Cai Da-Feng Zhijian Zheng

The energy spectra of hot electrons have been measured using the magnetic spectrometers, fitted with the LiF thermoluminescent dosimeter (TLD) which were calibrated using Cs~(137) γ-ray sources, in the interaction of a 130 mJ, 60 fs, 800 nm, 1∶10~(-6), 7.0×10~(17) W·cm~(-2) P-polarized laser incidence on Cu foil target at an angle of 45° with respect to the target normal without any prepulse. The yield of hot electrons and the conversion efficiency of laser energy to energy of hot electrons are 1.19×10~(10)/sr and 4.55%/sr at the normal of target and are 1.83×10~9/sr and 0.76%/sr at the specular direction of laser, which were deduced from the energy spectra of hot electrons. They were different at various direction because of the hot electrons produced in the interaction of laser-plasma constituted an anisotropy distribution.

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BESIII track extrapolation and matching

High Energy Physics and Nuclear Physics (2007)

王亮亮苑长征 Xiang Ma 马想王大勇

A GEANT4 based, Object-Oriented package, TrkExtAlg, is developed for extrapolating the BESIII MDC track into outer sub-detectors. The magnetic deflection and ionization loss of the particle in the BESIII detector is considered, the algorithm supplies the position and the momentum of the track in all the outer sub-detectors, as well as the error matrix at any given hit point with the multiple scattering effect taken into account. Through comparing the results of track extrapolation with the results of a full simulation and checking the results and application of track matching with hits in outer sub-detectors, TrkExtAlg is proved to be reliable.

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Citations (2)

Optimization methods for multi-scale sampling of soil moisture and snow in the Southern Sierra Nevada

2015 AGU Fall Meeting (2015)

Carlos Oroza Zhijian Zheng Z. Zhang Steven D. Glaser Roger C. Bales

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An Effective Thermal Splicing Method to Join Fluoride and Silica Fibers for a High Power Regime

Chinese Physics Letters (2015)

Zhijian Zheng Deqin Ouyang Junqing Zhao Shuangchen Ruan Jun Yu

A repeatable and simple thermal splicing method for low loss splice between fluoride and silica fibers is presented. The minimum splicing loss of 0.58 dB is achieved experimentally with this approach. Meanwhile, the power capacity of this splicing joint is also tested with a high power fiber laser. The maximum input power is up to 15 W, only limited by the available power of the laser source. To the best of our knowledge, this is the first report on thermal splicing between fluoride and silica fibers operating in a high power regime without any complicated ion-assisted deposition process.

splice

Fusion splicing

Join (topology)

10.1088/0256-307x/32/11/114206

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Citations (10)

Research of Tumor Cells Atypia Based on Perspective Imaging of Intense Laser Proton

Zhongguo yixue wulixue zazhi (2010)

Zhijian Zheng

Laser Ablation

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Theoretical calculation of Lα X-ray production cross sections of Ga, As, Pt, W and Au atoms by electron impact

Acta Physica Sinica (2009)

Biao He Yougen Yi Jiang Shao-En Yongjian Tang Zhijian Zheng

The Lα x-ray production cross sections of Ga, As, Pt, W and Au by electron impact are calculated using a modified version of the BELL formula by incorporating both ionic and relativistic corrections in it. The proposed modified Bell model with a single set of parameters can provide an excellent data in the reduced energy range 1≤E/Inl≤106（E and Inl are, respectively, the incident energy and ionization energy） with performance level at least as good as any of the existing methods and models. Experimental data are compared with the present results in cases of with and without the relativistic correction factor GR and the ionic correction factor Fion, with calculated cross sections obtained from the distorted wave Born approximation and with other experimental data available in the literature. The calculated results can be used to simulate the hot-electron energy spectrum and laser plasma yields and accordingly can provide accurate parameters for electron devices.

Born approximation

10.7498/aps.58.6879

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Measurement and Analysis on Shock Wave Driven by X－ray Radiation

Acta Physica Sinica (2000)

Jiang Shao-En Zhijian Zheng Wenhong Li DING YAO-NAN SUN KE-XU

CH foam material is filled in the cavities in order to improve planar degree of shock wave driven by X－ray radiation.Wedge－shaped aluminum samples are used to measure time－space streaking images of optical signals from the shock wave.And then the velocity and pressure of the shock wave is obtained.The radiation temp erature is obtained by using the scaled relations between veloctiy of shock wave and radiation temperature.

Wedge (geometry)

Streaking

10.7498/aps.49.94

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Citations (3)