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3篇 您的检索式:作者名="R.Betti"
    题名 作者 年代 出处 被引量
1Laser-direct-drive program: Promise, challenge, and path forward显示文摘Along with laser-indirect(X-ray)-drive and magnetic-drive target concepts,laser direct drive is a viable approach to achieving ignition and gain with inertial confinement fusion.In the United States,a national program has been established to demonstrate and understand the physics of laser direct drive.The program utilizes the Omega Laser Facility to conduct implosion and coupling physics at the nominally 30-kJ scale and lasereplasma interaction and coupling physics at the MJ scale at the National Ignition Facility.This article will discuss the motivation and challenges for laser direct drive and the broad-based program presently underway in the United States.E.M.Campbell V.N.Goncharov T.C.Sangster S.P.Regan P.B.Radha R.Betti J.F.Myatt D.H.Froula M.J.Rosenberg I.V.Igumenshchev W.Seka A.A.Solodov A.V.Maximov J.A.Marozas T.J.B.Collins D.Turnbull F.J.Marshall A.Shvydky J.P.Knauer R.L.McCrory A.B.Sefkow M.Hohenberger P.A.Michel T.Chapman L.Masse C.Goyon S.Ross J.W.Bates M. Karasik J.Oh J.Weaver A.J.Schmitt K.Obenschain S.P.Obenschain S.Reyes B.Van Wonterghem 2017Matter and Radiation at Extremes2017,2,2:10
2悬索桥主缆中高强钢丝的腐蚀与脆化显示文摘该文通过加速循环腐蚀试验对比分析了腐蚀对镀锌和未镀锌钢丝的影响。试件在承受各种持续荷载的同时,高温下通过循环盐雾箱,分别在干燥及100%的相对湿度条件下进行了腐蚀试验。测得了试件的重量损失、氢浓度、极限荷载以及破坏时的延伸率。延伸率的测量结果表明:钢丝的严重脆化不是单纯由吸氢引起的(氢脆),由腐蚀引起的钢丝表面的不均匀性才是导致其延伸率降低的主因。通过对建立腐蚀钢丝有限元模型所做的数值分析,以及在扫描电子显微镜下对断裂面的分析,对试验结果进行了验证。李翠娟 石峰 舒新 蒋亚 R.Betti A.C.west G.Vermaa Y.Cao 2015中外公路2015,35,4:6
3Generation 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 2021Matter and Radiation at Extremes2021,6,4:0
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