Performance Scaling in Magnetized Liner Inertial Fusion Experiments

被引：82

作者：

Gomez, M. R. ^{[1
]}

Slutz, S. A. ^{[1
]}

Jennings, C. A. ^{[1
]}

Ampleford, D. J. ^{[1
]}

Weis, M. R. ^{[1
]}

Myers, C. E. ^{[1
]}

Yager-Elorriaga, D. A. ^{[1
]}

Hahn, K. D. ^{[2
]}

Hansen, S. B. ^{[1
]}

Harding, E. C. ^{[1
]}

Harvey-Thompson, A. J. ^{[1
]}

Lamppa, D. C. ^{[1
]}

Mangan, M. ^{[1
]}

Knapp, P. F. ^{[1
]}

Awe, T. J. ^{[1
]}

Chandler, G. A. ^{[1
]}

Cooper, G. W. ^{[1
,3
]}

Fein, J. R. ^{[1
]}

Geissel, M. ^{[1
]}

Glinsky, M. E. ^{[1
]}

Lewis, W. E. ^{[1
]}

Ruiz, C. L. ^{[1
]}

Ruiz, D. E. ^{[1
]}

Savage, M. E. ^{[1
]}

Schmit, P. F. ^{[1
]}

Smith, I. C. ^{[1
]}

Styron, J. D. ^{[3
]}

Porter, J. L. ^{[1
]}

Jones, B. ^{[1
]}

Mattsson, T. R. ^{[1
]}

Peterson, K. J. ^{[1
]}

Rochau, G. A. ^{[1
]}

Sinars, D. B. ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[3] Univ New Mexico, Albuquerque, NM 87131 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 15期

关键词：

PHYSICS BASIS; FUEL; IGNITION;

D O I：

10.1103/PhysRevLett.125.155002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present experimental results from the first systematic study of performance scaling with drive parameters for a magnetoinertial fusion concept. In magnetized liner inertial fusion experiments, the burn-averaged ion temperature doubles to 3.1 keV and the primary deuterium-deuterium neutron yield increases by more than an order of magnitude to 1.1 x 10(13) (2 kJ deuterium-tritium equivalent) through a simultaneous increase in the applied magnetic field (from 10.4 to 15.9 T), laser preheat energy (from 0.46 to 1.2 kJ), and current coupling (from 16 to 20 MA). Individual parametric scans of the initial magnetic field and laser preheat energy show the expected trends, demonstrating the importance of magnetic insulation and the impact of the Nernst effect for this concept. A drive-current scan shows that present experiments operate close to the point where implosion stability is a limiting factor in performance, demonstrating the need to raise fuel pressure as drive current is increased. Simulations that capture these experimental trends indicate that another order of magnitude increase in yield on the Z facility is possible with additional increases of input parameters.

引用

页数：7

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