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Title: A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion

Abstract

In the present letter, we propose the design of a wedged-peak pulse at the late stage of indirect drive. Our simulations of one- and two-dimensional radiation hydrodynamics show that the wedged-peak-pulse design can raise the drive pressure and capsule implosion velocity without significantly raising the fuel adiabat. It can thus balance the energy requirement and hydrodynamic instability control at both ablator/fuel interface and hot-spot/fuel interface. This investigation has implication in the fusion ignition at current mega-joule laser facilities.

Authors:
; ; ;  [1]; ; ; ;  [1]
  1. Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)
Publication Date:
OSTI Identifier:
22299642
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONTROL; DESIGN; HOT SPOTS; HYDRODYNAMICS; IMPLOSIONS; LASERS; PEAKS; PLASMA INSTABILITY; PULSES; SIMULATION; THERMONUCLEAR FUELS; THERMONUCLEAR IGNITION; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Fan, Zhengfeng, Ren, Guoli, Liu, Bin, Wu, Junfeng, He, X. T., Liu, Jie, Wang, L. F., Ye, Wenhua, and Center for Applied Physics and Technology, Peking University, Beijing 100871. A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion. United States: N. p., 2014. Web. doi:10.1063/1.4898682.
Fan, Zhengfeng, Ren, Guoli, Liu, Bin, Wu, Junfeng, He, X. T., Liu, Jie, Wang, L. F., Ye, Wenhua, & Center for Applied Physics and Technology, Peking University, Beijing 100871. A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion. United States. https://doi.org/10.1063/1.4898682
Fan, Zhengfeng, Ren, Guoli, Liu, Bin, Wu, Junfeng, He, X. T., Liu, Jie, Wang, L. F., Ye, Wenhua, and Center for Applied Physics and Technology, Peking University, Beijing 100871. 2014. "A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion". United States. https://doi.org/10.1063/1.4898682.
@article{osti_22299642,
title = {A wedged-peak-pulse design with medium fuel adiabat for indirect-drive fusion},
author = {Fan, Zhengfeng and Ren, Guoli and Liu, Bin and Wu, Junfeng and He, X. T. and Liu, Jie and Wang, L. F. and Ye, Wenhua and Center for Applied Physics and Technology, Peking University, Beijing 100871},
abstractNote = {In the present letter, we propose the design of a wedged-peak pulse at the late stage of indirect drive. Our simulations of one- and two-dimensional radiation hydrodynamics show that the wedged-peak-pulse design can raise the drive pressure and capsule implosion velocity without significantly raising the fuel adiabat. It can thus balance the energy requirement and hydrodynamic instability control at both ablator/fuel interface and hot-spot/fuel interface. This investigation has implication in the fusion ignition at current mega-joule laser facilities.},
doi = {10.1063/1.4898682},
url = {https://www.osti.gov/biblio/22299642}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 21,
place = {United States},
year = {Wed Oct 15 00:00:00 EDT 2014},
month = {Wed Oct 15 00:00:00 EDT 2014}
}