Shell mix in the compressed core of spherical implosions -: art. no. 085003

被引:42
作者
Regan, SP
Delettrez, JA
Marshall, FJ
Soures, JM
Smalyuk, VA
Yaakobi, B
Epstein, R
Glebov, VY
Jaanimagi, PA
Meyerhofer, DD
Radha, PB
Sangster, TC
Seka, W
Skupsky, S
Stoeckl, C
Town, RPJ
Haynes, DA
Golovkin, IE
Hooper, CF
Frenje, JA
Li, CK
Petrasso, RD
Séguin, FH
机构
[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA
[2] Univ Wisconsin, Dept Energy Phys, Madison, WI 53706 USA
[3] Univ Florida, Dept Phys, Gainesville, FL 32611 USA
[4] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
[5] Univ Rochester, Dept Engn Mech, Rochester, NY 14623 USA
[6] Univ Rochester, Dept Phys & Astron, Rochester, NY 14623 USA
关键词
D O I
10.1103/PhysRevLett.89.085003
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The Rayleigh-Taylor instability in its highly nonlinear, turbulent stage causes atomic-scale mixing of the shell material with the fuel in the compressed core of inertial-confinement fusion targets. The density of shell material mixed into the outer core of direct-drive plastic-shell spherical-target implosions on the 60-beam, OMEGA laser system is estimated to be 3.4(+/-1.2) g/cm(3) from time-resolved x-ray spectroscopy, charged-particle spectroscopy, and core x-ray images. The estimated fuel density, 3.6(+/-1) g/cm(3), accounts for only similar to50% of the neutron-burn-averaged electron density, n(e)=2.2(+/-0.4)x10(24) cm(-3).
引用
收藏
页码:085003/1 / 085003/4
页数:4
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