Computational study of magnetic field compression by laser-driven implosion

The compression of an external magnetic field by a laser-driven implosion is studied by using the two-dimensional resistive magneto-radiation hydrodynamic simulation code for electron-beam guiding in fast ignition. The simulation results show that it is possible to compress the magnetic field to 1 kT (107 G); however, the strong magnetic field affects the implosion dynamics because of the suppression of the electron heat flux that crosses the strong magnetic field lines. This result suggests that care must be taken to design a target and the initial conditions for fast ignition with an external magnetic field not only to control the hot electron transport but also to form the high-density plasma.

[1]  G. Zimmerman,et al.  A new quotidian equation of state (QEOS) for hot dense matter , 1988 .

[2]  Michael D. Perry,et al.  Ignition and high gain with ultrapowerful lasers , 1994 .

[3]  A. Sunahara,et al.  Computational study of strong magnetic field generation in a nonspherical, cone-guided implosion , 2013 .

[4]  B. G. Logan,et al.  Two-dimensional simulations of thermonuclear burn in ignition-scale inertial confinement fusion targets under compressed axial magnetic fields , 2013 .

[5]  H. Shiraga,et al.  Control of an electron beam using strong magnetic field for efficient core heating in fast ignition , 2014, 1412.6222.

[6]  J. R. Rygg,et al.  Compressing magnetic fields with high-energy lasers , 2009 .

[7]  Hiroshi Azechi,et al.  Kilotesla Magnetic Field due to a Capacitor-Coil Target Driven by High Power Laser , 2013, Scientific Reports.

[8]  D. Strozzi,et al.  Implosion and burn of fast ignition capsules-Calculations with HYDRA , 2012 .

[9]  P. Chang,et al.  Inertial confinement fusion implosions with imposed magnetic field compression using the OMEGA Laser , 2012 .

[10]  N. Miyanaga,et al.  Fast heating of ultrahigh-density plasma as a step towards laser fusion ignition , 2001, Nature.

[11]  A. Velikovich,et al.  Impact ignition as a track to laser fusion , 2014 .

[12]  Kunioki Mima,et al.  Simulation and design study of cryogenic cone shell target for Fast Ignition Realization Experiment project , 2007 .

[13]  T. Yabe,et al.  The constrained interpolation profile method for multiphase analysis , 2001 .

[14]  D. J. Larson,et al.  Fast-ignition transport studies: Realistic electron source, integrated particle-in-cell and hydrodynamic modeling, imposed magnetic fields , 2012, 1205.1594.