J. Phys. IV France
Volume 133, June 2006
|Page(s)||107 - 110|
|Publié en ligne||16 juin 2006|
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 107-110
Mass distribution of hydrodynamic jets produced on the national ignition facilityB.E. Blue1, S.V. Weber1, D.T. Woods1, M.J. Bono1, S.N. Dixit1, J.M. Foster2, S.G. Glendinning1, C.A. Haynam1, J.P. Holder1, W.W. Hsing1, D.H. Kalantar1, N.E. Lanier3, B.J. MacGowan1, E.I. Moses1, A.J. Nikitin1, T.S. Perry1, V.V. Rekow1, P.A. Rosen2, P.E. Stry1, B.M. Van Wonterghem1, R. Wallace1, B.H. Wilde3 and H.F. Robey1
1 Lawrence Livermore National Laboratory, Livermore, California 94550, USA
2 AWE Aldermaston, Reading RG7 4PR, UK
3 Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
The production of supersonic jets of material via the interaction of a strong shock wave with a spatially localized density perturbation is a common feature of inertial confinement fusion and astrophysics. The spatial structure and mass evolution of supersonic jets has previously been investigated in detail [J. M. Foster et. al, Phys. Plasmas 9, 2251 (2002) and B. E. Blue et. al, Phys. Plasmas 12, 056312 (2005)]. In this paper, the results from the first series of hydrodynamic experiments will be presented in which the mass distribution within the jet was quantified. In these experiments, two of the first four beams of NIF are used to drive a 40 Mbar shock wave into millimeter scale aluminum targets backed by 100 mg/cc carbon aerogel foam. The remaining beams are delayed in time and are used to provide a point-projection x-ray backlighter source for diagnosing the structure of the jet. Comparisons between data and simulations using several codes are presented.
© EDP Sciences 2006