检索结果-南通市图书馆

Insensitivity of a turbulent laser-plasma dynamo to initial conditions

Matter and radiation at Extremes 2022年第4期7卷 50-64页

作者： A.F.A.Bott L.Chen P.Tzeferacos C.A.J.Palmer A.r.Bell r.Bingham A.Birkel D.H.Froula J.Katz M.W.Kunz C.-K.Li H-S.Park r.petrasso J.S.ross B.reville D.ryu F.H.Séguin T.G.White A.A.Schekochihin D.Q.Lamb G.Gregori Department of Physics University of OxfordOxfordUnited Kingdom Department of Astrophysical Sciences University of PrincetonPrincetonNew Jersey 08544USA Department of Physics and Astronomy University of RochesterRochesterNew York 14627USA Laboratory for Laser Energetics University of RochesterRochesterNew York 14623USA School of Mathematics and Physics Queens University BelfastBelfastUnited Kingdom rutherford Appleton Laboratory ChiltonDidcotUnited Kingdom Department of Physics University of StrathclydeGlasgowUnited Kingdom Massachusetts Institute of Technology CambridgeMassachusetts 02139USA Lawrence Livermore National Laboratory LivermoreCalifornia 94550USA Max-Planck-Institut für Kernphysik HeidelbergGermany Department of Physics School of Natural SciencesUNISTUlsanSouth Korea Department of Physics University of NevadaRenoNevada 89557USA Department of Astronomy and Astrophysics University of ChicagoChicagoIllinois 60637USA

It has recently been demonstrated experimentally that a turbulent plasma created by the collision of two inhomogeneous,asymmetric,weakly magnetized,laser-produced plasma jets can generate strong stochastic magnetic fields via the small-scale turbulent dynamo mechanism,provided the magnetic reynolds number of the plasma is sufficiently *** this paper,we compare such a plasma with one arising from two pre-magnetized plasma jets whose creation is identical save for the addition of a strong external magnetic field imposed by a pulsed magnetic field *** investigate the differences between the two turbulent systems using a Thomson-scattering diagnostic,x-ray selfemission imaging,and proton *** Thomson-scattering spectra and x-ray images suggest that the external magnetic field has a limited effect on the plasma dynamics in the *** the external magnetic field induces collimation of the flows in the colliding plasma jets and although the initial strengths of the magnetic fields arising from the interaction between the colliding jets are significantly larger as a result of the external field,the energies and morphologies of the stochastic magnetic fields post-amplification are *** conclude that,for turbulent laser-plasmas with supercritical magnetic reynolds numbers,the dynamo-amplified magnetic fields are determined by the turbulent dynamics rather than the seed fields or modest changes in the initial flow dynamics of the plasma,a finding consistent with theoretical expectations and simulations of turbulent dynamos.

关键词： turbulent initial stochastic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fuel-ion diffusion in shock-driven inertial confinement fusion implosions

引用

Matter and radiation at Extremes 2019年第5期4卷 50-54页

作者： Hong Sio Chikang Li Cody E.Parker Brandon Lahmann Ari Le Stefano Atzeni richard D.petrasso Plasma Science and Fusion Center Massachusetts Institute of TechnologyCambridgeMassachusetts 02139USA Los Alamos National Laboratory Los AlamosNew Mexico 87545USA Dipartimento SBAI Universita degli Studi di Roma“La Sapienza”Via Antonio Scarpa 1400161RomaItaly

The impact of fuel-ion diffusion in inertial confinement fusion implosions is assessed using nuclear reaction yield ratios and reaction *** T3He-gas-filled(with trace D)shock-driven implosions,the observed TT/T3He yield ratio is∼23lower than expected from temperature ***3He-gas-filled(with trace T)shock-driven implosions,the timing of theD3He reaction history is∼50 ps earlier than those of the DT reaction histories,and average-ion hydrodynamic simulations cannot reconcile this timing *** experimental observations are consistent with reduced T ions in the burn region as predicted by multi-ion diffusion theory and particle-in-cell simulations.

关键词： diffusion shock filled

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：