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Title: A hybrid-drive nonisobaric-ignition scheme for inertial confinement fusion

Abstract

A new hybrid-drive (HD) nonisobaric ignition scheme of inertial confinement fusion (ICF) is proposed, in which a HD pressure to drive implosion dynamics increases via increasing density rather than temperature in the conventional indirect drive (ID) and direct drive (DD) approaches. In this HD (combination of ID and DD) scheme, an assembled target of a spherical hohlraum and a layered deuterium-tritium capsule inside is used. The ID lasers first drive the shock to perform a spherical symmetry implosion and produce a large-scale corona plasma. Then, the DD lasers, whose critical surface in ID corona plasma is far from the radiation ablation front, drive a supersonic electron thermal wave, which slows down to a high-pressure electron compression wave, like a snowplow, piling up the corona plasma into high density and forming a HD pressurized plateau with a large width. The HD pressure is several times the conventional ID and DD ablation pressure and launches an enhanced precursor shock and a continuous compression wave, which give rise to the HD capsule implosion dynamics in a large implosion velocity. The hydrodynamic instabilities at imploding capsule interfaces are suppressed, and the continuous HD compression wave provides main pdV work large enough to hotspot, resultingmore » in the HD nonisobaric ignition. The ignition condition and target design based on this scheme are given theoretically and by numerical simulations. It shows that the novel scheme can significantly suppress implosion asymmetry and hydrodynamic instabilities of current isobaric hotspot ignition design, and a high-gain ICF is promising.« less

Authors:
 [1];  [2];  [2];  [2]; ; ; ; ;  [1];  [2];  [2]; ;  [1]
  1. Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing 100094 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22599894
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; CAPSULES; COMPRESSION; COMPUTERIZED SIMULATION; DENSITY; DEUTERIUM; ELECTRONS; IMPLOSIONS; INERTIAL CONFINEMENT; INSTABILITY; LASERS; PLASMA; SPHERICAL CONFIGURATION; SYMMETRY; THERMONUCLEAR IGNITION; TRITIUM

Citation Formats

He, X. T., E-mail: xthe@iapcm.ac.cn, Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, Li, J. W., Wang, L. F., Liu, J., Lan, K., Ye, W. H., Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Fan, Z. F., and Wu, J. F. A hybrid-drive nonisobaric-ignition scheme for inertial confinement fusion. United States: N. p., 2016. Web. doi:10.1063/1.4960973.
He, X. T., E-mail: xthe@iapcm.ac.cn, Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, Li, J. W., Wang, L. F., Liu, J., Lan, K., Ye, W. H., Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Fan, Z. F., & Wu, J. F. A hybrid-drive nonisobaric-ignition scheme for inertial confinement fusion. United States. doi:10.1063/1.4960973.
He, X. T., E-mail: xthe@iapcm.ac.cn, Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, Li, J. W., Wang, L. F., Liu, J., Lan, K., Ye, W. H., Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871, IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240, Fan, Z. F., and Wu, J. F. Mon . "A hybrid-drive nonisobaric-ignition scheme for inertial confinement fusion". United States. doi:10.1063/1.4960973.
@article{osti_22599894,
title = {A hybrid-drive nonisobaric-ignition scheme for inertial confinement fusion},
author = {He, X. T., E-mail: xthe@iapcm.ac.cn and Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871 and IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240 and Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 and Li, J. W. and Wang, L. F. and Liu, J. and Lan, K. and Ye, W. H. and Center for Applied Physics and Technology, HEDPS, Peking University, Beijing 100871 and IFSA Collaborative Innovation Center of MoE, Shanghai Jiao-Tong University, Shanghai 200240 and Fan, Z. F. and Wu, J. F.},
abstractNote = {A new hybrid-drive (HD) nonisobaric ignition scheme of inertial confinement fusion (ICF) is proposed, in which a HD pressure to drive implosion dynamics increases via increasing density rather than temperature in the conventional indirect drive (ID) and direct drive (DD) approaches. In this HD (combination of ID and DD) scheme, an assembled target of a spherical hohlraum and a layered deuterium-tritium capsule inside is used. The ID lasers first drive the shock to perform a spherical symmetry implosion and produce a large-scale corona plasma. Then, the DD lasers, whose critical surface in ID corona plasma is far from the radiation ablation front, drive a supersonic electron thermal wave, which slows down to a high-pressure electron compression wave, like a snowplow, piling up the corona plasma into high density and forming a HD pressurized plateau with a large width. The HD pressure is several times the conventional ID and DD ablation pressure and launches an enhanced precursor shock and a continuous compression wave, which give rise to the HD capsule implosion dynamics in a large implosion velocity. The hydrodynamic instabilities at imploding capsule interfaces are suppressed, and the continuous HD compression wave provides main pdV work large enough to hotspot, resulting in the HD nonisobaric ignition. The ignition condition and target design based on this scheme are given theoretically and by numerical simulations. It shows that the novel scheme can significantly suppress implosion asymmetry and hydrodynamic instabilities of current isobaric hotspot ignition design, and a high-gain ICF is promising.},
doi = {10.1063/1.4960973},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}