Control of fuel target implosion non-uniformity in heavy ion inertial fusion

被引：2

作者：

Iinuma, T. ^{[1
]}

Karino, T. ^{[1
]}

Kondo, S. ^{[1
]}

Kubo, T. ^{[1
]}

Kato, H. ^{[1
]}

Suzuki, T. ^{[1
]}

Kawata, S. ^{[1
]}

Ogoyski, A. I. ^{[2
]}

机构：

[1] Utsunomiya Univ, Grad Sch Engn, Utsunomiya, Tochigi 3218585, Japan

[2] Varna Tech Univ, Dept Phys, Varna 9010, Bulgaria

来源：

LASER AND PARTICLE BEAMS | 2016年 / 34卷 / 04期

关键词：

Heavy ion inertial fusion; Target implosion; Dynamic stabilization; Wobbling beam; RAYLEIGH-TAYLOR INSTABILITY; DYNAMIC STABILIZATION;

D O I：

10.1017/S0263034616000677

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In inertial fusion, one of scientific issues is to reduce an implosion non-uniformity of a spherical fuel target. The implosion non-uniformity is caused by several factors, including the driver beam illumination non-uniformity, the Rayleigh-Taylor instability (RTI) growth, etc. In this paper, we propose a new control method to reduce the implosion non-uniformity; the oscillating implosion acceleration delta g(t) is created by pulsating and dephasing heavy-ion beams (HIBs) in heavy-ion inertial fusion (HIF). The delta g(t) would reduce the RTI growth effectively. The original concept of the non-uniformity control in inertial fusion was proposed in [Laser Part. Beams (1993) 11, 757-768]. In this paper, it was found that the pulsating and dephasing HIBs illumination provide successfully the controlled delta g(t) and that delta g(t) induced by the pulsating HIBs reduces well the implosion non-uniformity. Consequently the pulsating HIBs improve a pellet gain remarkably in HIF.

引用

页码：729 / 734

页数：6

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