Open AccessVelocity and Timing of Multiple Spherically Converging Shock Waves in Liquid Deuterium
Author(s) -
T. R. Boehly,
V. N. Goncharov,
W. Seka,
M. A. Barrios,
P. M. Celliers,
D. G. Hicks,
G. W. Collins,
S. X. Hu,
J.A. Marozas,
D. D. Meyerhofer
Publication year - 2011
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.106.195005
Subject(s) - physics , shock wave , deuterium , mechanics , shock (circulatory) , classical mechanics , nuclear physics , medicine
The fuel entropy and required drive energy for an inertial confinement fusion implosion are set by a sequence of shocks that must be precisely timed to achieve ignition. This Letter reports measurements of multiple spherical shock waves in liquid deuterium that facilitate timing inertial confinement fusion shocks to the required precision. These experiments produced the highest shock velocity observed in liquid deuterium (Us=135 km/s at ∼2500 GPa) and also the first observation of convergence effects on the shock velocity. Simulations model the shock-timing results well when a nonlocal transport model is used in the coronal plasma