MISC

2006年1月

Innovative ignition scheme for ICF - impact fast ignition

NUCLEAR FUSION
  • M Murakami
  • ,
  • H Nagatomo
  • ,
  • H Azechi
  • ,
  • F Ogando
  • ,
  • M Perlado
  • ,
  • S Eliezer

46
1
開始ページ
99
終了ページ
103
記述言語
英語
掲載種別
DOI
10.1088/0029-5515/46/1/011
出版者・発行元
INT ATOMIC ENERGY AGENCY

A new ignition scheme is proposed, in which the compressed DT main fuel is ignited by impact collision of another fraction of separately imploded DT fuel, which is accelerated in the hollow conical target to super high velocities of about (1-2) x 10(8) CM s(-1). Its kinetic energy is directly converted into thermal energy corresponding to temperatures > 5 keV on the collision with the main fuel, and this self-heated portion plays the role of ignitor. The ignitor shell is irradiated typically by nanosecond pulses at intensities well beyond 10(15) W cm(-2) at such a short laser wavelength as 0.25 mu m to exert ablation pressures of 150-300 Mbar. A preliminary two-dimensional hydrodynamic simulation demonstrates substantial heating of 3-5 keV on the impact. Simple physics, potential for high gain designs and low cost-these are the crucial advantages of the present scheme.

リンク情報
DOI
https://doi.org/10.1088/0029-5515/46/1/011
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000235067500011&DestApp=WOS_CPL
ID情報
  • DOI : 10.1088/0029-5515/46/1/011
  • ISSN : 0029-5515
  • Web of Science ID : WOS:000235067500011

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