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Title: Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project

Abstract

In the fast ignition (FI) scheme, at first, high-density fuel core plasma is assembled by implosion laser, and is then heated by petawatt laser to achieve a fusion burning condition. The formation of high-density fuel core plasma is one of the key issues for FI. A typical target for FI is a shell fitted with a reentrant gold cone to make a pass for heating laser. The ablated plasma of gold cone interferes with the implosion dynamics, which is quite different from that of the conventional central-hot-spot approach. Therefore, the dynamics of a nonspherical implosion must be controlled to assemble high density and high areal density. Numerical simulations are performed to study radiation hydrodynamics of cone-guided implosions. In the results, the effect of the cone on implosion dynamics is clarified. The cone surface is irradiated by the radiation and ablated plasma affects the imploding shell. Coating on the cone, which tamps the gold plasma, is effective to improve the implosion performance, although the result does not satisfy the condition of core plasma for the first stage of the Fast Ignition Realization Experiment [K. Mima et al., Proceedings of the IAEA Fusion Energy Conference, Lyon, 2002 (IAEA, Vienna, 2002), Paper No.more » IAEA-CN-94/IF/03].« less

Authors:
; ; ; ; ;  [1];  [2];  [2];  [2]
  1. Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
20975061
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 5; Other Information: DOI: 10.1063/1.2671124; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONES; DENSITY; DESIGN; GOLD; HYDRODYNAMICS; IMPLOSIONS; LASERS; PETAWATT POWER RANGE; PLASMA; PLASMA HEATING; PLASMA SIMULATION; THERMONUCLEAR REACTORS

Citation Formats

Nagatomo, Hideo, Johzaki, Tomoyuki, Nakamura, Tatsufumi, Sakagami, Hitoshi, Sunahara, Atsushi, Mima, Kunioki, National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565-0871, and Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871. Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project. United States: N. p., 2007. Web. doi:10.1063/1.2671124.
Nagatomo, Hideo, Johzaki, Tomoyuki, Nakamura, Tatsufumi, Sakagami, Hitoshi, Sunahara, Atsushi, Mima, Kunioki, National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565-0871, & Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871. Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project. United States. doi:10.1063/1.2671124.
Nagatomo, Hideo, Johzaki, Tomoyuki, Nakamura, Tatsufumi, Sakagami, Hitoshi, Sunahara, Atsushi, Mima, Kunioki, National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565-0871, and Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871. Tue . "Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project". United States. doi:10.1063/1.2671124.
@article{osti_20975061,
title = {Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project},
author = {Nagatomo, Hideo and Johzaki, Tomoyuki and Nakamura, Tatsufumi and Sakagami, Hitoshi and Sunahara, Atsushi and Mima, Kunioki and National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292 and Institute for Laser Technology, 2-6 Yamada-oka, Suita, Osaka 565-0871 and Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871},
abstractNote = {In the fast ignition (FI) scheme, at first, high-density fuel core plasma is assembled by implosion laser, and is then heated by petawatt laser to achieve a fusion burning condition. The formation of high-density fuel core plasma is one of the key issues for FI. A typical target for FI is a shell fitted with a reentrant gold cone to make a pass for heating laser. The ablated plasma of gold cone interferes with the implosion dynamics, which is quite different from that of the conventional central-hot-spot approach. Therefore, the dynamics of a nonspherical implosion must be controlled to assemble high density and high areal density. Numerical simulations are performed to study radiation hydrodynamics of cone-guided implosions. In the results, the effect of the cone on implosion dynamics is clarified. The cone surface is irradiated by the radiation and ablated plasma affects the imploding shell. Coating on the cone, which tamps the gold plasma, is effective to improve the implosion performance, although the result does not satisfy the condition of core plasma for the first stage of the Fast Ignition Realization Experiment [K. Mima et al., Proceedings of the IAEA Fusion Energy Conference, Lyon, 2002 (IAEA, Vienna, 2002), Paper No. IAEA-CN-94/IF/03].},
doi = {10.1063/1.2671124},
journal = {Physics of Plasmas},
number = 5,
volume = 14,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}