Studies in Capsule Design for Mid-Z Ion-Driven Fast Ignition

被引：12

作者：

Albright, B. J. ^{[1
]}

Schmitt, M. J. ^{[1
]}

Fernandez, J. C. ^{[1
]}

Cragg, G. E. ^{[1
]}

Tregillis, I. ^{[1
]}

Yin, L. ^{[1
]}

Hegelich, B. M. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

5TH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS (IFSA2007) | 2008年 / 112卷

关键词：

D O I：

10.1088/1742-6596/112/2/022029

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Ion fast ignition (FI) is an approach to fast ignition inertial confinement fusion (ICF) where an energetic ion beam is used to heat a hot spot in a compressed ICF capsule to ignition conditions. Recent work at LANL and elsewhere suggests that ion beams with Z > 1 may be produced with characteristics suitable for FI. Indeed, fast ignition using mid-Z ions may have advantages over protons FI interms of number of ions required for ignition, robustness of the ion beam to beam-plasma instabilities, sharpness of Bragg peak, and ability to locate the ion source far from the ignition capsule. In this paper, simple preliminary capsule designs for mid-Z ion fast ignition are assessed. These designs comprise a DT gas pocket, a DT ice fuel layer, and alow-Z ablator subject to a drive achievable on facilities such as the NIF and LMJ. Dependence of capsule gain with various beam parameters are obtained.

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