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Title: Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka

Abstract

Thermonuclear ignition and subsequent burn are key physics for achieving laser fusion. In fast ignition, a highly compressed fusion fuel generated with multiple ns-laser beams is rapidly heated with a large energy, ps-laser pulse in prior to core disassembly. This scheme has a high potential to achieve ignition and burn since driver energy required for high fusion gain is predicted to be about one tenth of that needed for the central ignition scheme. In Japan, Fast Ignition Realization Experiment (FIREX) project has been started to clarify the physics of energy transport and deposition in the core plasma and to demonstrate fuel temperature of above 5 keV. After the success, FIREX-I will be followed by the second phase of the project (FIREX-II) to demonstrate ignition and burn. LFEX laser, designed to deliver a laser pulse of 10 kJ in 10 ps, are operational and the first phase of FIREX experiments has been stated. A new target is proposed to attain dense compression of fuel and improve laser-core coupling efficiency by adopting double-cone structure, a low-density inner liner, low-Z outer coating, and Br-doped fuel shell. In this paper, present status and near term prospects of the FIREX-I project will be reported togethermore » with activities on target designing, laser development, and plasma diagnostics.« less

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Institute of Laser Engineering, Osaka Univ., 2-6 Yamada-oka, Suita, Osaka 565-0871 (Japan)
Publication Date:
OSTI Identifier:
21370970
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1209; Journal Issue: 1; Conference: 2. international conference on ultra-intense laser interaction science, Frascati (Italy), 24-29 May 2009; Other Information: DOI: 10.1063/1.3326327; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPRESSION; COUPLING; DOPED MATERIALS; ENERGY ABSORPTION; GAIN; KEV RANGE; LASER TARGETS; LASER-PRODUCED PLASMA; LASERS; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA HEATING; PLASMA SIMULATION; PULSED IRRADIATION; THERMONUCLEAR FUELS; THERMONUCLEAR IGNITION; ABSORPTION; AMPLIFICATION; ENERGY RANGE; FUELS; HEATING; IRRADIATION; MATERIALS; PLASMA; SIMULATION; SORPTION; TARGETS

Citation Formats

Nishimura, H, Azechi, H, Mima, K, Fujimoto, Y, Fujioka, S, Homma, H, Jitsuno, T, Johzaki, T, Koga, M, Kawanaka, J, Kawasaki, T, Miyanaga, N, Murakami, H, Murakami, M, Nagatomo, H, Morio, N, Nagai, K, Nakai, M, Nakamura, T, and Nakazato, T. Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka. United States: N. p., 2010. Web. doi:10.1063/1.3326327.
Nishimura, H, Azechi, H, Mima, K, Fujimoto, Y, Fujioka, S, Homma, H, Jitsuno, T, Johzaki, T, Koga, M, Kawanaka, J, Kawasaki, T, Miyanaga, N, Murakami, H, Murakami, M, Nagatomo, H, Morio, N, Nagai, K, Nakai, M, Nakamura, T, & Nakazato, T. Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka. United States. https://doi.org/10.1063/1.3326327
Nishimura, H, Azechi, H, Mima, K, Fujimoto, Y, Fujioka, S, Homma, H, Jitsuno, T, Johzaki, T, Koga, M, Kawanaka, J, Kawasaki, T, Miyanaga, N, Murakami, H, Murakami, M, Nagatomo, H, Morio, N, Nagai, K, Nakai, M, Nakamura, T, and Nakazato, T. Tue . "Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka". United States. https://doi.org/10.1063/1.3326327.
@article{osti_21370970,
title = {Present status and future prospect of Fast Ignition Realization Experiment (FIREX) Project at ILE, Osaka},
author = {Nishimura, H and Azechi, H and Mima, K and Fujimoto, Y and Fujioka, S and Homma, H and Jitsuno, T and Johzaki, T and Koga, M and Kawanaka, J and Kawasaki, T and Miyanaga, N and Murakami, H and Murakami, M and Nagatomo, H and Morio, N and Nagai, K and Nakai, M and Nakamura, T and Nakazato, T},
abstractNote = {Thermonuclear ignition and subsequent burn are key physics for achieving laser fusion. In fast ignition, a highly compressed fusion fuel generated with multiple ns-laser beams is rapidly heated with a large energy, ps-laser pulse in prior to core disassembly. This scheme has a high potential to achieve ignition and burn since driver energy required for high fusion gain is predicted to be about one tenth of that needed for the central ignition scheme. In Japan, Fast Ignition Realization Experiment (FIREX) project has been started to clarify the physics of energy transport and deposition in the core plasma and to demonstrate fuel temperature of above 5 keV. After the success, FIREX-I will be followed by the second phase of the project (FIREX-II) to demonstrate ignition and burn. LFEX laser, designed to deliver a laser pulse of 10 kJ in 10 ps, are operational and the first phase of FIREX experiments has been stated. A new target is proposed to attain dense compression of fuel and improve laser-core coupling efficiency by adopting double-cone structure, a low-density inner liner, low-Z outer coating, and Br-doped fuel shell. In this paper, present status and near term prospects of the FIREX-I project will be reported together with activities on target designing, laser development, and plasma diagnostics.},
doi = {10.1063/1.3326327},
url = {https://www.osti.gov/biblio/21370970}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1209,
place = {United States},
year = {2010},
month = {2}
}