Laser and Particle Beams
IF
1.16
Papers
2,721
Papers 2,693
1 page of 270 pages (2,693 results)
Newest
#1Zhaoyang Wu (CAEP: China Academy of Engineering Physics)
#2Wei Lu (CAEP: China Academy of Engineering Physics)
Last. Song Falun (CAEP: China Academy of Engineering Physics)H-Index: 3
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#1Jinyong Fang (CAST: China Academy of Space Technology)H-Index: 1
#2Wu Jiangniu (CAST: China Academy of Space Technology)
Last. Li Li (CAST: China Academy of Space Technology)
view all 7 authors...
Based on the path encoding pulse compression teleology, a novel method for obtaining high-power microwave (HPM) pulse with ultrahigh repetition frequency is proposed in this paper. The mechanism of the path encoding pulse compression teleology is first introduced. And then, the obtained HPM pulse is analyzed. Theoretical analysis shows that the peak power of MW level and the repetition frequency of MHz level for the generated HPM pulse can be easily reached. To demonstrate the effectiveness of t...
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#1Huiya Liu (CAS: Chinese Academy of Sciences)H-Index: 8
#2Anle Lei (CAEP: China Academy of Engineering Physics)H-Index: 6
Last. Wei Wang (CAEP: China Academy of Engineering Physics)H-Index: 1
view all 0 authors...
The characterization of energetic protons generated in the ShenGuang-II UP petawatt laser interactions with foil targets has been systematically studied. The proton energy spectra and angular distributions are measured with a radiochromic film stack. It shows that the proton energy spectra have a Boltzmann distribution with temperature of about 2.8 MeV and cutoff energy of about 20 MeV. The divergence angles of protons vary from 10° to 60°, dependent on the proton energy. The proton source size ...
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#1Didier Raffestin (University of Bordeaux)H-Index: 5
#2D. Batani (University of Bordeaux)H-Index: 43
Last. Emmanuel d'Humières (University of Bordeaux)H-Index: 32
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The advent of high-energy short-pulse laser beams poses new problems related to radiation protection. The radiation generated in experiments using multipetawatt laser systems leads to prompt doses and potentially to the activation of the materials within the interaction chamber and the experimental hall. Despite many new PW laser facilities are nowadays entering into operation, this question has received little attention until now. In this paper, we evaluate the radiological effects induced by t...
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#1Yue Chao (PKU: Peking University)H-Index: 1
#2Xinxin Yan (PKU: Peking University)
Last. Xian-Tu He (PKU: Peking University)H-Index: 38
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Effects of solid nanolayers embedded in a near-critical density plasma on the laser-driven collisionless shock acceleration are investigated by using two-dimensional particle-in-cell simulations. Due to the interaction of nanolayers and the incident laser, an additional number of hot electrons are generated and an inhomogeneous magnetic field is induced. As a result, the collisionless shock is reinforced within the nanolayer gaps compared to the target without the structured nanolayers. When the...
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#1Qiao Chen (USTC: University of Science and Technology of China)H-Index: 2
#2He Wang (USTC: University of Science and Technology of China)H-Index: 1
Last. Zengming Zhang (USTC: University of Science and Technology of China)H-Index: 18
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Laser-induced damage threshold is the main limitation for fused silica optics in high-power laser applications. The existence of various defects near the surface is the key factor for the degradation of the threshold. In this work, the photoluminescence spectra at different regions of the damaged and recovered fused silica samples are recorded to analyze the correlation between photoluminescence of surface defects and laser-induced damage threshold. The experimental data concluded the inverse pr...
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A detailed study of direct laser-driven electron acceleration in paraxial Laguerre-Gaussian modes corresponding to helical beams \text{LG}_{0m}with azimuthal modes m=\left\{1,2,3,4,5\right\}is presented. Due to the difference between the ponderomotive force of the fundamental Gaussian beam \text{LG}_{00}and helical beams \text{LG}_{0m}we found that the optimal beam waist leading to the most energetic electrons at full width at half maximum is more than twice smaller for the latter an...
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#1Sanjay Babu (University of Allahabad)
#2Asheel Kumar (University of Allahabad)H-Index: 3
Last. Ashish Varma (University of Allahabad)H-Index: 2
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Stimulated Raman forward scattering (SRFS) of an intense X-mode laser pump in a preformed parabolic plasma density profile is investigated. The laser pump excites a plasma wave and one/two electromagnetic sideband waves. In Raman forward scattering, the growth rate of the parametric instability scales as two-third powers of the pump amplitude and increases linearly with cyclotron frequency.
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#1Heinrich Hora (UNSW: UNSW Sydney)H-Index: 44
#2Shalom EliezerH-Index: 27
Last. Noaz NissimH-Index: 9
view all 3 authors...
For low carbon energy generation, a very large exchange of electricity generators is existentially vital within the next number of years by power stations preferably at considerably low cost than the present installations. When considering the million times higher nuclear energy per reaction than chemical, the usual hydrogen fusion with abundant boron fuel is used for environmentally clean electricity generators. Instead of usually needed ignition temperatures of hundreds of million degrees Cels...
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#1Yahong Yang (HUST: Huazhong University of Science and Technology)
#2Ya Zhang (WUT: Wuhan University of Technology)H-Index: 10
Last. Wei Jiang (HUST: Huazhong University of Science and Technology)H-Index: 15
view all 4 authors...
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