Magnetically assisted fast ignition

W.-M. Wang, P. Gibbon, Z.-M. Sheng, Y.-T. Li

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Fast ignition (FI) is investigated via integrated particle-in-cell simulation including both generation and transport of fast electrons, where petawatt ignition lasers of 2 ps and compressed targets of a peak density of 300 g cm^−3 and areal density of 0.49 g cm^−2 at the core are taken. When a 20 MG static magnetic field is imposed across a conventional cone-free target, the energy coupling from the laser to the core is enhanced by sevenfold and reaches 14%. This value even exceeds that obtained using a cone-inserted target, suggesting that the magnetically assisted scheme may be a viable alternative for FI. With this scheme, it is demonstrated that two counterpropagating, 6 ps, 6 kJ lasers along the magnetic field transfer 12% of their energy to the core, which is then heated to 3 keV.
LanguageEnglish
Article number015001
Number of pages5
JournalPhysical Review Letters
Volume114
Issue number1
DOIs
Publication statusPublished - 7 Jan 2015

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ignition
cones
lasers
magnetic fields
energy
cells
electrons
simulation

Keywords

  • fast ignition
  • fast electrons
  • lasers

Cite this

Wang, W.-M. ; Gibbon, P. ; Sheng, Z.-M. ; Li, Y.-T. / Magnetically assisted fast ignition. In: Physical Review Letters. 2015 ; Vol. 114, No. 1.
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Magnetically assisted fast ignition. / Wang, W.-M. ; Gibbon, P.; Sheng, Z.-M.; Li, Y.-T.

In: Physical Review Letters, Vol. 114, No. 1, 015001, 07.01.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Magnetically assisted fast ignition

AU - Wang, W.-M.

AU - Gibbon, P.

AU - Sheng, Z.-M.

AU - Li, Y.-T.

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KW - fast ignition

KW - fast electrons

KW - lasers

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