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Design of magnetized liner inertial fusion experiments using the Z facility.
- Source :
- Physics of Plasmas; Jul2014, Vol. 21 Issue 7, p1-15, 15p, 2 Charts, 17 Graphs
- Publication Year :
- 2014
-
Abstract
- The magnetized liner inertial fusion concept has been presented as a path toward obtaining substantial thermonuclear fusion yields using the Z accelerator [S. A. Slutz et al., Phys. Plasmas 17, 056303 (2010)]. We present the first integrated magnetohydrodynamic simulations of the inertial fusion targets, which self-consistently include laser preheating of the fuel, the presence of electrodes, and end loss effects. These numerical simulations provided the design for the first thermonuclear fusion neutron-producing experiments on Z using capabilities that presently exist: peak currents of I<subscript>max</subscript>=18-20 MA, pre-seeded axial magnetic fields of B<subscript>z</subscript><superscript>0</superscript> = 10 T, laser preheat energies of about E<subscript>las</subscript>=2 kJ delivered in 2 ns, DD fuel, and an aspect ratio 6 solid Be liner imploded to 70 km/s. Specific design details and observables for both near-term and future experiments are discussed, including sensitivity to laser timing and absorbed preheat energy. The initial experiments measured stagnation radii r<subscript>stag</subscript> < 75 μm, temperatures around 3 keV, and isotropic neutron yields up to Y<subscript>n</subscript><superscript>DD</superscript> = 2 × 10<superscript>12</superscript>, with inferred alpha-particle magnetization parameters around r<subscript>stag</subscript>=r<subscript>L</subscript><superscript>α</superscript> = 1.7 [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1070664X
- Volume :
- 21
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Physics of Plasmas
- Publication Type :
- Academic Journal
- Accession number :
- 97349399
- Full Text :
- https://doi.org/10.1063/1.4890298