Observation of resistive Weibel instability in intense laser plasma

被引：3

作者：

Krishnamurthy, S. ^{[1
]}

Makur, K. ^{[1
]}

Ramakrishna, B. ^{[1
]}

机构：

[1] Indian Inst Technol Hyderabad, Dept Phys, Sangareddy 502285, Telangana, India

来源：

LASER AND PARTICLE BEAMS | 2020年 / 38卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

Collimation; fast ignition; ion acceleration; laser; proton; FAST-ELECTRON TRANSPORT; ION-ACCELERATION; DRIVEN; PHYSICS; BEAM;

D O I：

10.1017/S0263034620000154

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observe experimentally periodic proton beam filamentation in laser-produced dense plasma using multilayered (CH-Al-CH) sandwich targets. The accelerated MeV proton beams from these targets exhibit periodic frozen filaments up to 5-10 mu m as a result of resistive Weibel instabilities in the expanding plasma. The evolution of strong self-generated resistive magnetic fields at the targets interface is attributed to such plasma effects, which are supported, by our theory and simulations. We suggest that the resistive Weibel instability could be effectively employed to understand the evolution of magnetic fields in laser-generated plasma in the astrophysics scenario or the advanced fast igniter approach of the inertial confinement fusion.

引用

页码：152 / 158

页数：7

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