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您的检索式：作者名="V.V.Ivanov"
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| 1 | Investigation of wire-array Z-pinches by laser probing diagnostics显示文摘Laser diagnostics provides powerful tools for the investigation of dense Z-pinches.In this paper,wire-array Z-pinches are investigated at the 1 MA Zebra generator using laser diagnostics at different wavelengths coupled with x-ray diagnostics.Plasma dynamics during the ablation,implosion,and stagnation stages are observed by multiframe diagnostics.Cascading and nonprecursor implosions are studied in wire arrays.Ultraviolet diagnostics allows deep penetration into the Z-pinch plasma at stagnation.End-on probing reveals the complicated structure of the precursor.Strong magnetohydrodynamic instabilities are found in a dense pinch hidden in the trailing plasma.Small-scale instabilities are seen in the Z-pinch plasma with micrometer resolution.Probing of the pinch from four directions shows asymmetrical trailing plasma in some configurations of wire arrays.Faraday rotation diagnostics reveals the magnetic fields and the current distribution in the plasma of the precursor and Z-pinch.Redistribution of current in the trailing plasma is seen during kink and sausage instabilities in the stagnation stage.The formation of micropinches and hot spots in the Z-pinch is analyzed with coupled laser and x-ray diagnostics.Different laser diagnostics allow the study of Z-pinch plasmas in all stages,including fast dynamics and instabilities. | V.V.Ivanov A.A.Anderson D.Papp | 2019 | Matter and Radiation at Extremes2019，4，1： | 3 |
| 2 | C_p/CuCd电接触材料制备工艺的研究显示文摘本文系统研究了在 Cp/ Cu Cd电接触材料制备过程中 ,原始粉末状态、压制压力、烧结温度等工艺参数对材料相对密度的影响。结果表明 ,原始粉末的差异对制备工艺的全过程均产生规律性的影响。压制压力对压坯密度的影响符合粉末冶金材料的一般压制规律。在烧结过程中 ,镉和孔隙扩散对烧结密实化过程起着重要作用。通过组织和性能对比 ,分析了后续加工工艺方法的优缺点。 | 邵文柱 崔玉胜 王岩 谷文伟 杨德庄 V.V.Ivanov | 2000 | 电工合金2000，，3： | 1 |
| 3 | Generation of strong magnetic fields for magnetized plasma experiments at the 1-MA pulsed power machine显示文摘Pulsed power technology provides a platform for investigating plasmas in strong magnetic fields using a university-scale machine.Presented here are methods for generating and measuring the 1–4-MG magnetic fields developed for the 1-MA Zebra pulsed power generator at the University of Nevada,Reno.A laser coupled with the Zebra generator produces a magnetized plasma,and experiments investigate how a megagauss magnetic field affects the two-plasmon decay and the expansion of the laser-produced plasma in both transverse and longitudinal magnetic fields. | V.V.Ivanov A.V.Maximov R.Betti L.S.Leal J.D.Moody K.J.Swanson N.A.Huerta | 2021 | Matter and Radiation at Extremes2021，6，4： | 0 |
| 4 | Investigation of Compressible Electromagnetic Flute Mode Instability in Finite Beta Plasma in Support of Z-pinch and Laboratory Astrophysics Experiments显示文摘Flute mode turbulence plays an important role in numerous applications,such as tokamak,Z-pinch,space and astrophysical plasmas.In a low beta plasma flute oscillations are electrostatic and in the nonlinear stage they produce large scale density structures co-mingling with short scale oscillations.Large scale structures are responsible for the enhanced transport across the magnetic field and appearance of short scales leads to ion heating,associated with the ion viscosity.In the present paper nonlinear equations which describe the nonlinear evolution of the flute modes treated as compressible electromagnetic oscillations in a finite beta inhomogeneous plasma with nonuniform magnetic field are derived and solved numerically.For this purpose the 2D numerical code FLUTE was developed.Numerical results show that even in a finite beta plasma flute mode instability can develop along with formation of large scale structures co-existing with short scale perturbations in the nonlinear stage. | V.I.Sotnikov V.V.Ivanov R.Presura J.N.Leboeuf O.G.Onishchenko B.V.Oliver B.Jones T.A.Mehlhorn C.Deeney | 2008 | Communications in Computational Physics2008，4，8： | 0 |
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