Thermonuclear burn characteristics of compressed deuterium-tritium microspheres

Wu Jun-Feng; Ye Wen-Hua; Zhang Wei-Yan

doi:10.7498/aps.59.2381

Abstract

The thermonuclear burn characteristics of compressed deuterium-tritium microspheres are simulated with LARED-S code based on the isochoric and isobaric models. Two examples of the isochoric model are simulated and compared with the other present data for validating the LARED-S code. For the isobaric model, numerical results characterizing the thermonuclear burn for a broad range of initial conditions are presenteal. It is shown that the yield and burn-up fraction increase with the total fuel mass, pressure and main-fuel density. It is necessary for the hot-spot to reach temperatures up to 70 to 80 MK and areal density 3 to 4 kg· m-2 to obtain considerable fusion energy. If the main-fuel density is increased high enough, the hot-spot condition for ignition could be broadened to a lower limit. Finally, the results of the isobaric model are compared with those of the actual ignition targets simulated with the LARED-S code.

Keywords:

compressed deuterium-tritium microsphere /
isochoric model /
isobaric model /
thermonuclear fusion

Authors and contacts

1.
北京应用物理与计算数学研究所,北京 100094

References

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Cited By

[1]	［1］Lindl J D 1995 Phys. Plasma 2 3933
[2]	［2］Lindl J D, Amendt P, Berger R L, Glendinning S G, Glenzer S H, Haan S W, Kauffman R L, Landen O L, Suter L J 2004 Phys. Plasma 11 340
[3]	［3］Wu J F, Ye W H, Zhang W Y 2003 High Power Laser Part. Beams 15 64 (in Chinese) ［吴俊峰、叶文华、张维岩 2003 强激光与粒子束 15 64］
[4]	［4］Wu J F, Ye W H, Zhang W Y 2005 High Power Laser Part. Beams 17 373 (in Chinese) ［吴俊峰、叶文华、张维岩 2005 强激光与粒子束 17 373］
[5]	［5］Kidder R E 1976 Nucl. Fusion 16 405
[6]	［6］Meyer-Ter-Vehn J 1982 Nucl. Fusion 22 561
[7]	［7］Fraley G S, Linnebur E J, Mason R J, Morse R L 1974 Phys. Fluids 17 474

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Catalog

Vol. 59, Issue 4 - 2010-02-20

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